10⼀Heme-Onc/TOX I Flashcards
⬜ are 4 major triggers of vasooclusive crisis in Sickle Cell Disease patients
What is the treatment for vasooclusive crisis? (5)
_________________
Which med is used for long term management?
109DICK (Dehydration / Infection / Cold temp / [Kant breathe (hypoxia)])
_________________
acute tx = Rehydration / [abx and PAIN CONTROL (NSAID>opioids)] / heat / oxygen
_________________
chronic tx = Hydroxyurea
Which drugs cause Agranulocytosis? (6)
Gangs Can Certainly Crush Myeloblast & Promyelocytes
Ganciclovir
Clozapine
Carbamazepine
Colchicine
Methimazole(also Teratogenic–>Cutis Aplasia)
PTU
Victims of [smoke inhalation injury] should empircally be treated for Carbon Monoxide and what other chemical toxicity?
________________
What are the treatments for these toxicities? (4)
CYanide toxicity (➜ SEVERE lactic acidosis)
________________
“CYaMonoxide toxicity Needs Overt Smoke Help”
empiric tx for CYanide and (Carbon)Monoxide toxicity
- [Nitrites (induces methemoglobinemia)]
- Oxygen 100% (CO tx)
- [Sodium thiosulfate]
- HydroxoCobalamin (binds Cyanide ➜ excretable Cyanocobalamin)
{{CYanide is released from [burning PLASTIC] or [NitroprussideRx]} | Tx = Hydroxocobalamin+/- Sodium thiosulfate}
Pulse Ox measures ⬜ which = ⬜
What does [PulseOx] read during methemoglobinemia?
________________
why?
**POSOSOP**
<sub>**P**ulse **O**x =</sub> **S**<sub>p</sub>**O**<sub>2 = </sub> [**S**aturation of **O**<sub>2</sub> on **P**eripheral<sub>RBC</sub>]
* * *
**{low SpO2 < 85%}** = low **[**PulseOx<sup> </sup>S<sub>p</sub>O<sub>2_</sub>**RBC O2 Saturation**]<sub> </sub>\< 85%**}**
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
⚠️*NOTE*: Even though [PaO<sub>2</sub> *oxygen partial pressure*] may read "normal", methemoglobin has lower affinity to O2 than Hgb = Mgb low binding to O2 ➜ **low [RBC O2 saturation]** = **{low POSOROS** = **[**PulseOx<sup> </sup>S<sub>p</sub>*O<sub>2_</sub>**Saturation*]<sub> </sub>\< 85%**}**
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
*Dark chocolate colored blood*
## Footnote
[🔎SpO2 = Saturation of O2 in periphery/vein (via PulseOx)]
[ 🔎SaO2 = Saturation of O2 in **a**rtery (via ABG) <sub>= more accurate</sub>]
🫁<sub>**PaO2<sub>*ABG*</sub>** specifically refers to pressure solely exerted by dissolved oxygen in the arterial blood. It represents amount of oxygen actually dissolved in the plasma of arterial blood, rather than the amount that is bound to hemoglobin (which is reflected in measures like **SaO2<sub>*ABG*</sub>** or **SpO2<sub>*PulseOx*</sub>**).</sub>
Dark chocolate colored blood = ⬜
________________
MOA for tx? (3)
Methemoglobinemia
________________
1st: [NADPH gives electron to [METHYLENE BLUE] ]
2nd: this converts [METHYLENE BLUE] –> [LeukoMethylene blue]
3rd: [LM reduces Methomoglobin –> back to Hgb]
s/s of [hypOcalcemia < 0.76 iCal] (7)
TQT + BOD + Chvostek
_________________
low calcium tx = IV CaGLUCONATE or CaChloride
SEVERE lead toxicity = [(⬜serum lead level) or ⬜]
tx? (2)
≥70 (or encephalopathy)
Moderate lead toxicity = serum lead level of ⬜.
What’s unique about this level of toxicity ?
tx?
[Moderate lead toxicity = 45-69]
[XR lead lines from lead deposition on long bone metaphysis]
_________________
normal lead level = < 5
mild lead toxicity = serum lead level of ⬜
tx? (2)
5-44
tx = [no meds] and [repeat venous blood lead level in 1 month]
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
*normal lead level = \< 5*
Lead inhibits ⬜ which causes what effect on RBC?
major features of lead toxicity -10
[ferrochelatase and ALAD] ; [⬇︎heme synthesis and ⇪ RBC protoporphyrin]
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
**LL**\_**EE**\_**AA**\_**DD\_SS**
1-{**L**ead lines ([Burton's gingival lines] and on [metaphyses of long bones on xr]}
2-[A**L**AD and ferrochelatase] are inhibited by Lead
3-**E**ncephalopathy
4-**E**rythrocyte Basophilic Stippling (RBC retained rRNA aggregates due to Lead inhibiting rRNA degradation)
5-**A**bd colic
6-sideroblastic **A**nemia
7-**D**rops (wrist drop, foot drop, stocking glove)
8-[**D**imercaprol and EDTA are 1st line tx
9-***S**uc*cimer = peds tx ("it *Suc*ks to be a kid who ate lead")
10-**S**eventy-eight ⼀Houses older than 1978 have ⇪ for lead poisoning
## Footnote
*normal lead level < 5*
Iron deficiency is the most common pediatric nutritional deficiency and should be suspected in any child drinking greater than ⬜ cow’s milk /day
___________________
what is the order of physiological changes that occur after giving [ferrous sulfate] iron therapy?
>710 cc
_________________
[ferrous sulfate oral therapy] ➜ ([⇪ reticulocytes] ➜ [⇪ hct & hgb] ) by 1 mo
etx
Aplastic Crisis
AC = [AplasticCrisis)] = [Anemia in Sickle Cell pts,] 2/2 to parvoB19 replicating in (ProErythroblast_Erythroid precursors) → causes [⬇reticulocyte RBC] → [SEVERE ⬇︎Erythropoiesis = (⬇︎RBC/⬇︎Hgb)] … in setting of already (sickle cell) anemic state = Crisis
{[anemia] from parvoB19} occurring in the presence of another (I.e. sickle cell) anemia = “Crisis” because RBC reserve will already be reduced from the other (sickle cell) anemia
What’s the difference between [Aplastic Crisis] and [Aplastic Anemia]?
AA = [(Aplastic Anemia)] =[All-cell PANcytopenia (including ⬇︎Erythropoiesis)] from [failure/destruction/suppression] of [Hematopoietic CD34 Myeloid Stem Cells] By [Bone Marrow T-cells( → hypOcellular bone marrow with fatty infiltration) = dry bone marrow tap] … These [Bone Marrow T-cells] are activated by [IDIOPATHIC > Myelotoxic Drugs/Body Radiation/Virus/Fanconi)]
_________________
AC = [AplasticCrisis)] = [Anemia in Sickle Cell pts,] 2/2 to parvoB19 replicating in (ProErythroblast_Erythroid precursors) → causes [⬇reticulocyte RBC] → [SEVERE ⬇︎Erythropoiesis (⬇︎RBC/⬇︎Hgb)] … in setting of already (sickle cell) anemic state = Crisis
[A C] from parvoB19 is worst in the presence of other anemias since RBC reserve will be reduced
cp for Radiation proctitis (4)
- s/p pelvic radiation therapy
- tenesmus
- bloody diarrhea
- [anal mucus discharge]
ITP
tx for Adults? (4)
[Immune Thrombocytopenic Purpura (ITP)
-obs(cutaneous sx but platelet≥30k )
-[CTS | IVIG | antiD](if bleeding | platelet< 30k)
etx: Ab binds to platelet → both removed by Spleen macrophages → thrombocytopenia → purpura from uncontrolled bleeding
ITP
tx for peds? (4)
[Immune Thrombocytopenic Purpura (ITP)
-obs(if cutaneous sx only )
-[CTS | IVIG | antiD](if bleeding)
etx: Ab binds to platelet → both removed by Spleen macrophages → thrombocytopenia → purpura from uncontrolled bleeding
MethanOL overdose antidote
Fomepizole
_________________
inhibits [hepatic alcohol dehydrogenase] from converting EG/methanol ➜ nephrotoxic metabolites
[Ethylene Glycol (antifreeze)] overdose antidote
Fomepizole
_________________
inhibits [hepatic alcohol dehydrogenase] from converting EG/methanol ➜ nephrotoxic metabolites
In a hemorrhaging patient, when do you transfuse [pRBC]? (2)
_________________
pRBC = packed RBC
hgb< 7
(or < 8 if CVD/CA)
What are the early sx of Sickle Cell disease ? (2)
_________________
how is this diagnosed?
-dactylitis (painful swelling of hands/feet 2/2 bone infarction)
-hemolytic anemia
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
<sub>Electrophoresis</sub>: {[Hgb **S**] with [NO Hgb **A**]}
Name the lab pair used to confrim SLE diagnosis
dana Smith
antidsDNA + anti-Smith
Hydoxychloroquine is a ⬜ used to treat what sx in SLE? (3)
_________________
How is CTS used in SLE patients? (2)
anti-malarial ;
Rash / Arthralgia / Soft tissue synovitis
_________________
acute SLE = low dose CTS
Chronic/SEVERE SLE = HIGH dose CTS
RA is a common cause of Anemia of Chronic Disease
How do you treat ACD 2/2 RA?
Infliximab(AntiTNFα)
{ACD🔧: chronic/inflammation→ hepcidin→ [macrophage/intestinalferroportin]❌ from transfering Fe from FerriTin to Transferrin ➜ {[ ↧ Transferrin Saturation with paradoxic ⬇︎TIBC] , [↥ FerriTin],} and [⬇︎Fe**in circulation*],
Upregulators of Cytochrome P450 Enzymes (8)
Chronic alcoholics Steal Phen-Phen & Never Refuse Greasy Carbs which keeps them UP
- Chronic alcohol use
- St.John’s wort
- Phenytoin
- Phenobarbital
- Nevirapine
- Rifampin
- Griseofulvin
- Carbamazepine
Inhibitors of Cytochrome P450 Enzymes (11)
AAA RACKS In GQ Magazine
INHIBIT me from doing my job!
Acute Alcohol Abuse
Ritonavir (HIV Protease inhibitor)
Amiodarone
[Cimetidine & Ciprofloxacin]
Ketoconazole
Sulfonamides
[INH Isoniazid]
[Grapefruit Juice]
Quinidine
[Macrolides (except Azithro)]
What Substrates does Cytochrome P450 metabolize? (6)
Can Always Think When Outdoors, Son….i need it!
[Cyclosporine (Liver AND small intestine)]
AntiEpileptics
Theophylline
Warfarin
OCP
[Statins (NOT PRAVASTATIN)]
M.D. must recognize early signs of [Phenytoin toxicity > ⬜ mcg/ml]
What’s the earliest sign?
20
[Nystagmus on far lateral gaze]
_________________
other signs: [diplopia, ataxia ➜ coma]
[Phenytoin 10-(therapeutic)-20 < (TOXIC)]
Tx for Clostridium Botulinum poisoning - 3
- [Equine Heptavalent Anti- Botulinum toxin (passive immunity)]
- [Ig Anti- Botulinum]
- Guanidine
Jimson Weed Poisoning clinical presentation - 7
Jimson Weed = AntiCholinergic
“Blind as a bat, mad as a hatter, red as a beet, hot as a hare, dry as a bone, the bowel & bladder lose their tone, and the heart runs alone…..”
- Blind as a bat = [Mydriasis and [cycloplegia (blurry vision especially when focusing on near objects)]
- Mad as a hatter= Agitation & Hallucinations
- Red as a Beet = Cutaneous flushing despite vasoconstriction
- Hot as a hare = Hyperthermia from DEC ability to sweat
- Dry as a bone= DEC Secretions (including sweat)
- Bladder & Bowel lose tone
- Heart runs alone = No vagal tone at SA –> Tachycardia
[MMalignant Hyperthermia] etx
After giving [inhaled anesthestics vs succinylcholine] to genetically predisposed (AUTO DOM) pts develop ➜
Malignant = Muscle Rigidity
Malignant = Malignant Unstable Vitals
Hyperthermia = Fever
MMalignant Hyperthermia Tx
Dantrolene
TREAT PROMPTLY! AS THIS IS LIFE THREATENING CONDITION!
TTP treatment
_________________
TTP = Thrombotic Thrombocytopenic Purpura
plasma EXCHANGE
_________________
(Tx = EXCHANGE plasma containing anti-A13vM or deficiency of A13vM for normal plasma)
A13vM= [ADAMTS-13-vWF Metalloprotease])
TTP etx: [A13vM❌(or inhibition by shiga toxin in HUS)] →uncontrolled vWF chain cleavage → widespread platelet traps/activation → thrombocytopenia + microagio hemolytic anemia → FMNRT TTP cp ⚠️TTP cp (aside from +Neuro and plasma EXCHANGE tx) = HUS cp. ⼀ (TTP Tx = EXCHANGE plasma containing anti-A13vM or deficiency of A13vM for normal plasma)
TTP MOD (4)
_________________
TTP = Thrombotic Thrombocytopenic Purpura
① {[A13vM (ADAMTS13_vWF Metalloprotease)] (responsible for degrading vWF Multimers)}
② A13vM❌ = [acquired A13vM inhibition(by shiga toxin in HUS)] or [ acquired A13vM deficiency] (2/2 CLOpidogrel | tiCLOpidine | cyCLOsporine | AIDS )
③ ➜ allows ⇪ vWF Multimers to circulate and start cleaving large chains of von Willebrand factor from the vascular endothelium ➜ cleaved vWF ➜ widespread platelet traps and platelet activation ➜severe thrombocytopenia
④ +{RBC shearing ➜ [Schistocyte helmet cells], [INC Direct bilirubin], [microangiopathic hemolytic anemia]}
☞ TTP Symptom PENTAD (FMNRT)
_________________
tx = plasma EXCHANGE {(exchanges [anti-A13vM] and/or [low A13vM])for [more A13vM])}
💡in HUS, shiga toxin inhibits A13vM → similar TTP (but w/out neuro sx or plasma EXCHANGE tx) clinical presentation
In RBC…
Adult Hemoglobin is made of 4 globin chains. What are they? fetal Hemoglobin?
_________________
βeta Thalassemia occurs because of ⬜ on Chromosome ⬜ of either parent. This → β-chain being ⬜
_________________
describe the 2 variants of βeta thalassemia
βeta Thalassemia = SEVERE anemia
hgbA_ADULT[αα⼀αα / β⼀β] hgbF_fetal[αα⼀αα / γ⼀γ]
[point mutations in splice & promoter sequences]; 11; [underproduced or ABSENT]
[αα⼀αα / ❌⼀β] = βTminor (➜ β-chain underproduced= asx, [⇪ HgbA2= dx], )
_________________
[αα⼀αα / ❌⼀❌] = βTMAJOR (➜ β-chain ABSENT = early death , ⇪ HgbF|| temp tx = Hypertransfusion)
_________________
- *αα (2 genes) = 1 α globin chain* | βT = βeta Thalassemia*
- causes microcytic hypOchromic anemia*
In RBC…
[Adult Hemoglobin A] is made of 4 globin chains. What are they? fetal Hemoglobin?
_________________
αlpha thalassemia occurs due to ⬜ on chromosome ⬜. This can ultimately → 5 variants of hemoglobin makeup
Describe all 5 αT variants
alpha Thalassemiaa
hgbA_ADULT[αα⼀αα / β⼀β] hgbF_fetal[αα⼀αα / γ⼀γ]
[αlpha allele deletion (2 alleles per parent);] chromo 16
_________________
I:[⬜α⼀αα / β⼀β] ➜ [αT⼀silent carrier]
II:[⬜α⼀⬜α / β⼀β] ➜ [αT⼀traitTRANS]
II:[⬜⬜⼀αα / β⼀β] ➜ [αT⼀traitCIS(worst for offspring)]
III:[⬜⬜⼀⬜α / β⼀β] ➜ [αT⼀hb]
IV:[⬜⬜⼀⬜⬜/ β⼀β] ➜ [αT⼀🅱🅶]
_________________
_________________
[αT⼀hb] = Hb(h)**tetramer of beta]
[αT⼀🅱🅶]= {[h🅱:T🅶 :HFD]} = {Hgb** 🅱ART tetramer of 🅶amma (Hydrops Fetalis(DIES IN UTERO))**]}
*αα (2 genes) = 1 α globin chain* | αT = alpha Thalassemia
[Microcytic hypOchromic anemia] likely indicates the congenital hemolytic anemia ⬜.
Why are these patients at risk for organ damage 2/2 iron overload ? (3)
[Beta Thalassemia MAJOR [αα⼀αα / ❌⼀❌]] ;
Hypertransfusion tx overcomes effects of anemia and extramedullary hematopoiesis BUT also ➜ iron overload ➜ severe organ damage from iron deposition
[Anemia with Normal RDW] typically indicates ____
Thalassemia
What is Cooley Anemia?
________________
tx?
Beta thalassemia MAJOR (BOTH Mom and Dad [chromo 11 β-globin genes] have [splice/promoter point mutations] →2 out of 2 ABSENT β-globin → [⇪ HgbF (a2g2)] = SEVERE COOLEY ANEMIA
________________
Tx = [chronic blood transfusion with deferadirox iron chelator]
DDx - 4
Target cells = HALT
- HbC
- Asplenia
- Liver disease
- Thalassemia (usually asx and REQUIRES NO TX if asx - occurs in Mediterranean people)
Dx
Thalassemia
image shows teardrop cells (Thalassemia also has Target cells)
What must you be VERY CAUTIOUS of when treating Megaloblastic macrocytic anemia with Vitamin B12?
Explain
hypOkalemia! (within 48h of VB12 tx)
_________________
VB12 supplement in moderate/Severe Megaloblastic macrocytic anemia will ➜ newly formed RBC ➜ RAPID INTRACELL UPTAKE OF K+ by new RBC ➜ hypOkalemia!
So…
[transfuse pRBC before VB12 ➜ blunts new RBC synthesis ➜ prevents hypOkalemia] + [monitor K+ 48h]
clinical presentation of neonatal polycythemia (5)
- neonatal [PERIPHERAL venous hct > 65%]
- **[ASX v 24h self limited] **
- [+/- life threatening apnea]
- [+/- hypOglycemia]
- [+/- hyperviscosity (causes hypOperfusion ➜ lethargy, hypOtonia)]
_________________
1st hct comes from heel prick but = unreliable / confirmed by peripheral venous if abnml
treatment for neonatal polycythemia (3)
- [HYDRATION]
2. CORRECT METABOLIC DERANGEMENT
- –(if persist)–> [Partial exchange transfusion]
Patients with Multiple Myeloma need skeletal system assay for bone involvement
How is this done?
[Whole-Body-Cross-Sectional] eval with
[low-dose CT no contrast] > MRI or PET
What is hyperviscosity syndrome?
excessive production of monoclonal IgM (Waldenstrom Macroglobulinemia > Multiple Myeloma) ➜ congestion of brain’s microcirculation➜ [neuro ∆ /hearing ∆ /vision ∆]
_________________
neuro ∆ = somnolence/coma/HA
tx = plasmapheresis
There are several causes of Transiently elevated PSA, in which PSA should DEC by ⬜
What are the 3 causes of Persistently elevated PSA?
4-6 wks;
- [CPCPPS]
- BPH
- Prostate CA
___________________________x____________________________________
(Chronic Prostatitis⼀Chronic Pelvic Pain Syndrome)
What do patients use Ginkgo biloba for?
_________________
What’s the major potential side effect?
[“memory booster” (2/2 to its suggested propensity for ⇪ cerebral blood flow)]
_________________
Bleeding(inhibits platelet-activating factor + potentiates anticoagulants)
(especially if combined with ASA/antiplatelet drugs)
“[herbs GSG] cause Bleeds”
Explain the relationship between [Tumor Lysis Syndrome] and Cardiac arrest (6)
Chemotherapy commonly ➜ {TLS = [⇪PUKED (and ⬇︎Ca+)]} –(if SEVERE hyperKalemia)–> [sine wave Wide QRS] ➜ VENTRICULAR ASYSTOLE ➜ CARDIAC ARREST
PUK = Phosphate/Uric acid/K+
FFP is used for what purpose? (2)
- DIC
- 2nd line tx for[Vitamin K deficiency coagulopathy(i.e. warfarin OD INR ≥2)] ;
(2nd line tx for Warfarin OD because FFP requires large volume > 2L)
When is Platelet transfusion indicated?
[platelet < 50K]
Laboratory findings for [Cobalamin VB12] deficiency (3)
- PANcytopenia
- Macrocytic anemia
- low reticulocyte count
common cause of delirium/dementia in elderly!
Vegan Elderly patients p/w delirium or dementia should always make you c/f ⬜
[Cobalamin B12] deficiency!
Describe the 2 molecular reactions [Cobalamin B12] is responsible for
How does [Cobalamin VitB12] deficiency lead to hyperbilirubinemia
[Cobalamin VitB12 deficiency] ➜ defective DNA synthesis in bone marrow ➜ [Erythroid hyperplasia but with no maturation] = RBC megaloblastic transformation ➜ [intramedullary RBC hemolysis] ➜ [⇪ hemolysis markers ⼀indirect bilirubinemia, LDH, (low haptoglobin)] and no reticulocyte response
how do you emergently reverse Warfarin OD? (2)
[PCC +KIV] > ffp
_________________
- PCC = Prothrombin Concentrate Complex (contain VitK factors and normalizes INR<10m) / KIV = Vitamin K IV(takes 12h to onset)*
- ffp= fresh frozen plasma(2nd line due to large volume >2L required)*
These 3 agents emergently reverse ⬜
Briefly Describe each
a. [PCC ⼀ProThrombin Complex Concentrate]
b. [KIV ⼀Vitamin K IV]
c. [FFP ⼀Fresh Frozen Plasma]
WARFARIN
[PCC +KIV] > ffp
_________________
a. PCC = contain [VitK factors2/7/9/10] and normalizes INR<10m
b. KIV = takes 12h to onset
c. ffp = 2nd line for warfarin reversal due to [large volume >2L required]
Warfarin
MOA
Treatment for Warfarin toxicity depends on INR and Bleeding
Name the [Warfarin toxicity] tx* (2) *for:
[(supratherapeutic) INR: 3-4.5]
with
[Bleeding: ≤minimal]
[Hold Warfarin x 1-2d] | [DEC dose]
Treatment for Warfarin toxicity depends on Bleeding and INR
Name the [Warfarin toxicity] tx* (2) *for:
[Bleeding: ≤minimal]
with
[(supratherapeutic) INR: 4.5-10]
- Hold Warfarin ➜ Resume when INR therapeutic
- [vitKLd 1- 2.5mg PO](If INC risk of bleeding)**
_________________
Treatment for Warfarin toxicity depends on INR and Bleeding
Name the [Warfarin toxicity] tx* (2) *for:
[(supratherapeutic) INR: >10]
with
[Bleeding: ≤minimal]
- Hold Warfarin ➜ Resume when INR therapeutic
- GIVE [vitKHD 2.5 - 5 mg PO]
_________________
Treatment for Warfarin toxicity depends on INR and Bleeding
Name the [Warfarin toxicity] tx* (3) *for:
[INR: x]
with
[Bleeding: SEVERE]
- Hold Warfarin ➜ Resume when INR therapeutic
- GIVE [vitKUHD10 mg IV]
- GIVE [PCC]
_________________
What is Pernicious Anemia?
_________________
how is this diagnosed?
[Anti-ParietalCell and Anti-IntrinsicFactor] autoimmune destruction ➜ AMAG ➜ no IntrinsicFactor to facilitate {[Cobalamin VB12] terminal iLeum absorption} ➜ [mAcrocytic megaloblastic anemia]
dx = elevated Anti-IF
AMAG = Autoimmune Metaplastic Atrophic Gastritis
*HIGH YIELD*
Name the gastritis associated with pernicious anemia
_________________
What are the 3 main components of it’s MOD
AMAG = autoimmune destruction against intrinsic factor and oxyntic cells ➜ gastric fundus and gastric body destruction with:
- glandular atrophy
- intestinal metaplasia
- intestinal inflammation
_________________
AMAG = Autoimmune Metaplastic Atrophic Gastritis
What is Tumor Lysis Syndrome? (5)
{[cytotoxic chemotherapy] or [high grade lymphoma]} ➜ rapid lysis of neoplastic cells ➜”pt PUKED”
- Phosphate INC (⇪ [serum/urine P] binds [serum/urine Ca+] ➜ [⬇︎serum Ca+ and CaPhosphate renal stones])
- {Uric acid INC from pUrine DNA bases (serum and [urine ➜ Uric Acid stones]) = (px=allopurinol and IVF)} = DIAGNOSIS
- K+ INC ( ➜ arrhythmia)
- [Elevated (Ca+P & Uric Acid)renal stones ➜ AKI (IVF px)]
- [DNA base Purines] INC → Uric acid INC
Rasburicase
MOA?
[urate oxidase(not naturally in humans) recombinant] = catalyzes conversion of [INC Uric acid(i.e. from Tumor Lysis Syndrome)] ➜ [allantoin (excreted in urine)] for Tumor Lysis Syndrome px
_________________
Cancer pt on Rasburicase presents with AKI after starting chemo
Why is this?
Why didn’t Rasburicase stop it?
- Cancer = chemo ➜ [TLS PUKED] ➜ [Elevated (Ca+P & Uric Acid)renal stones ➜ AKI]
- Rasburicase only ⬇︎Uric Acid renal Stones. AKI can still be caused by Ca+P stones
Febuxostat
MOA
Allopurinol
MOA
Why is ChemoRadiation Therapy given together for Head/Neck CA versus Chemo or Radiation alone?
[60% Head/Neck CA are locally advanced at time of dx = inoperable] ➜ CRT as a duo INC the 5 year survival rate
Violent PCP should be treated immediately with ⬜ ⼀and Mild PCP should be treated with ⬜2
Violent PCP = [BENZO sedation]
Mild PCP = [low stimulation environment +/- benzo sedation]
***
[PCP (Phencyclidine)] is a [NMDA R Blocker hallucinogen]
How do you manage a patient using herbal medicine against medical advice (4)
- physician should*
1. explain risks of herbal preparations
2. document that you counseled patient to avoid herbal prep
3. document patient refusal/response to avoid herbal prep
4. follow patient closely for adverse effects
List the differences of [Peripherally Inserted central catheters (PICC)] as compared to [Centrally Inserted central catheters] (4)
PICC has [HIGHER UE DVT]
but…
PICC has lower
- infections
- procedural complications
- patient discomfort
Describe the following values for Iron Deficiency Anemia:
MCV
Iron
[Transferrin saturation]
TIBC
Ferritin
What is
TIBC
Total Iron Binding Capacity = TIBC = “Transferrin In Blood Calculation”
= [TOTAL amount of transferrin(transports iron) in serum]
(by calculation)
Describe the following values for Thalassemia:
MCV
Iron
[Transferrin saturation]
TIBC
Ferritin
Describe the following values for Anemia of Chronic Disease:
MCV
Iron
[Transferrin saturation]
TIBC
Ferritin
{ACD🔧: chronic/inflammation→IL6 secretion → [hepatic hepcidin secretion]→ [macrophage/intestinalferroportin]❌ from transfering Fe from FerriTin to Transferrin ➜ {[ ↧ Transferrin Saturation with an accompanying Transferrin “activity pause” = stops Transferrin from scavenging blood for more Fe → ⬇︎ Transferrin In Blood (⬇︎TIBC)] , [↥ FerriTin],} and ultimately [⬇︎Fe**in circulation*],
Describe the following values for Sideroblastic Anemia:
MCV
Iron
⬇︎MCV
⬆︎Iron
[4-allele deletionAlpha thalassemias] are characterized as ⬜ on electrophoresis
[HgbBarts tetramer of gamma (Hydrops Fetalis)]
Intrauterine death 2/2 CHF
What is [Hemoglobin SC] disease? (3)
- less severe variant of [Sickle Cell Disease (Hgb_SS & Hgb_SC)]
- ➜ mild normocytic anemia
- electrophoresis = [equal Hgb_S = Hgb_C]
Traditionally, FerriTin less than ⬜ indicates Iron Deficiency, but realistically why can this not be a hard rule?
[FerriTin < 15] = IDA
_________________
Most pts with [FerriTin 15-30] realistically are also iron deficient = Traditional rule can only rule IN IDA
Multiple Myeloma tx - 2
- [BorTezomib proteasome inhibitor]
OR
2.{[LD and if <70 yo(➜ BMT)}
[Lenalidomide + Dexamethoasone] –> [Bone Marrow Transplant]}
What is the issue with seeing IgG or IgA monoclonal “M” spikes on serum protein electrophoresis?
This does NOT automatically mean Multiple Myeloma. This can be seen in MGUS-Monoclonal Gammopathy of Unknown Significance which = common in older pts and only transforms to Multiple Myeloma 1%/year
Waldenstrom Macroglobulinemia MOD
________________
cp-5
Multiple Myeloma plasma cells overproduce IgM specifically –> hyperviscosity sx (HA, tinnitus)
- Neuropathy
- Engorged blood vessels
- HA
- tinnitus
- Raynaud Phenomenon
Waldenstrom Macroglobulinemia tx - 3
- PLASMAPHERESIS initially
- Chlorambucil + Prednisone = long term OR
- Fludarabine + Prednisone = long term
tx for Von Willebrand disease - 3
DDAVP desmopressin –(refractory)–> Factor 8 or vWF concentrate
DDAVP → ⇪Factor 8 → ⇪ vWF
(DDAVP releases subendothelial stores of vWF)
abx choice for [Acute Chest Syndrome in Sickle Cell Disease] -2
CefTriaxone (Strep Pneumo)
+
Azithromycin (Mycoplasma PNA)
treatment for iron overload in Hemochromatosis
therapeutic phlebotomy
Which CA presents as a pathologic lymph node of the head & neck in a smoker/EtOH patient?
metastatic SQC
MELAS stands for ⬜
Describe the clinical features (3)
MELAS
[Mitochondrial Encephalopathy + Lactic Acidosis + Stroke-like episodes]
_________________
- stroke-like episodes, lactic acidosis, seizures, m weakness, hearing loss
- onset LOE40 yo
- maternally transmitted only
SLE patients are at INC risk for developing which CA?
[Non-Hodgkin Lymphoma: (DLBL)]
Diffuse Large B-Cell
_________________
RAS_HH_ O_RR_ PAI_NN_
Clinical findings of Frostbite (6)
“Frostbite numbs your body, scars your body, then Killsyour body”
1st: numbs = [(Pallor +/- Thrombosis) + Anesthesia]
2nd: scars= [blister + eschar]
3rd: Kills = [Deep Tissue Necrosis, Mummification]
What is the treatment for Frostbite? (5)
In Frostbite, Thrombolysis is a treatment option
Initial treatment for Frostbite is ⬜. When is Thrombolysis considered to be used? (3)
[Rapid rewarming in water bath at 37-39C] ;
Thrombolysis is considered in patients who:
- have absent perfusion on angiography or technetium-99m scan
- amputation would be suboptimal
- seek care within 24h of injury (typically only used in these pts)
Malaria
Clinical features? (4)
- [FEVER + HA + THROMBOCYTOPENIA] in travelers returning from sub-Saharan Africa
- Dx = peripheral blood smear
- Plasmodium falciparum
- [Antimalarial prophylaxis before, during and after]
Although this herbal preparation has no clinically proven efficacy,
List the conditions it’s associated with treating:
* * *
Saw Palmetto
BPH
“GSG cause Bleeds”
Although this herbal preparation has no clinically proven efficacy
List the conditions it’s associated with treating:
* * *
garliC
HyperCholesterolemia
“[herbs GSG] cause Bleeds”
- Although this herbal preparation has no clinically proven efficacy,*
- List the conditions it’s associated with treating:*
- *
glucosamine
Osteoarthritis
- Although this herbal preparation has no clinically proven efficacy,*
- List the conditions it’s associated with treating:*
- *
chondroitin
Osteoarthritis
- Although this herbal preparation has no clinically proven efficacy,*
- List the conditions it’s associated with treating:*
- *
St.John’s wort
Depression
Chronic alcoholics Steal Phen-Phen & Never Refuse Greasy Carbs which keeps them UP
List the herbal preparations that cause bleeding (3)
“[herbs GSG] cause Bleeds”
-Ginkgo biloba
-Saw Palmetto
-Garlic
CYanide is released during the combustion of items containing the compounds [⬜ and ⬜]. Give 2 examples of materials that contain both these compounds
Carbon & Nitrogen ; PLASTIC | Polyurethane foam
{{CYanide is released from [burning PLASTIC] or [NitroprussideRx]} | Tx = Hydroxocobalamin+/- Sodium thiosulfate}
Describe why patients with CYanide poisoning have [bright CHERRYRed skin]
[CYanide(released from burning PLASTIC|using NitroprussideRx)] inhibits [mitochondrial oxidative phosphorylation] ➜ forces cell to switch to anaerobic metabolism ➜ lactic acid formation = [lactic acidmetabolic acidosis].
unused arterial oxygen remains in blood ➜ unused venous oxygen = [bright CHERRYRed skin]
_________________
tx = [Hydroxocobalamin +/- Sodium thiosulfate]
{CYanide tox sx = [bright CHERRYRed skin], Yucky bitter almond breath, brain⇪*seizure*, brain⬇︎*CNS depression* , [lung⇪ f/b lung⬇︎][tachypnea f/b bradypnea]
Both CYanide and Carbon MONOxide poisoning cause bright Red Skin
How can you differentiate the two? (2)
- [CYanide (released from burning PLASTIC)] inhibits [mitochondrial oxidative phosphorylation] vs [CO binds hgb with higher affinity than O2 ➜ DEC oxygen delivery]
- [CO = Carboxyhemoglobin > 25%] vs [CYanide = nml Carboxyhemoglobin]
_________________
{{CYanide is released from [burning PLASTIC] or [NitroprussideRx]} | Tx = Hydroxocobalamin+/- Sodium thiosulfate}
Sx of CYanide poisoning (6)
- Bright CHERRY Red Skin (also seen in CO poisoning)
- Yucky Bitter Almond breath
- brain⇪seizure
- brain⬇︎CNS depression
- [lung⇪ f/b lung⬇︎][tachypnea ➜ bradypnea]
- [lactic metabolic acidosis]
🧠inhibits oxidative phosphorylation → anaerobic metabolism → lacticMA
{{CYanide is released from [burning PLASTIC] or [NitroprussideRx]} | Tx = Hydroxocobalamin+/- Sodium thiosulfate}
Why do pts receiving Nitroprusside have INC risk for ⬜ toxicity? (2)
CYanide;
▶Nitroprusside (rapid short acting vasoDilator) metabolizes into both:
- Nitric Oxide ➜ vasoDilation
- CYanide ➜ converted to thioCYanate ➜ RENAL excreted
_________________
▶Patients with renal insufficiency = unable to excrete thioCYanate ➜ CYanide toxicity
{{CYanide is released from [burning PLASTIC] or [NitroprussideRx]} | Tx = Hydroxocobalamin+/- Sodium thiosulfate}
What’s the most common inherited thrombophilia?
Factor 5 Leiden
Describe the order of events for ordering blood transfusion for a patient (4)
blood is ordered for transfusion:
Type Serum Carefully, Dude
1st: Type: [Recipient patient’s] blood is typed = ABO and Rh determined
_________________
2nd: [Screen (PTAS)]: Recipient’s serum Screened for [unexpected preexisting autoantibodies (previously made against RBC antigens E, L or K from previous transfusions)] = [PreTransfusion Ab Screen]
_________________
3rd: Crossmatch Recipient’s blood with [blood they will be receiving] in-vitro first
_________________
4th: Decide: [✅Transfuse (⊕unexpected e/l/kRBC AutoAntibodies or ⊕Crossmatch rejection?)🚫Transfuse ➜ Identify Ab]
[GVHD-Graft Versus Host Disease] is common after _____ or _____ transplant
_________________
It involves [Graft_Donor ⬜ cells] attacking which 3 parts of the [Host_Receipient body]?
Bone marrow; Organ ;
_________________
T ;
- Skin
- Liver
- GI
This occurs because [Graft_Donor] T-cells recognize major and minor HLA antigens of the [Host_Recipient Skin//Liver/GI]
What is the px for [Febrile nonhemolytic transfusion reaction]
Leukoreduction of [graft_donor] blood
_________________
this will also ⬇︎ risk of HLA alloimmunization and CMV transmission
What is Leukoreduction used for? (3)
[Leukoreduction of [graft_donor] blood]
will ⬇︎ risk of:
1.[Febrile nonhemolytic transfusion reaction],
2.[HLA alloimmunization]✳
3.CMV transmission(CMV resides in Leukocytes)
✳alloimmunization: = *host_recipient immune response to otherwise [foreign antigens (blood group ag|histocompatibility ag) from ANOTHER PERSON] [⼀usually from incidental exposure like transfusion] *
A patient receiving Nitroprusside for Aortic Dissection develops acute metabolic acidosis and confusion.
Diagnosis?
Cyanide toxicity
{{CYanide is released from [burning PLASTIC] or [NitroprussideRx]} | Tx = Hydroxocobalamin+/- Sodium thiosulfate}
The 3 phases of [Primary Hemostasis platelet plugging] are ____
Describe the 3 phases of [Primary Hemostasis platelet plugging (1HS)] that stops the bleeding after you cut your arm
“superficial cut using DAG on it !”
1st: [aDherence] of circulating [inactivated platelet’s Gp1B] to exposed vWF of subendothelial collagen
→2nd: [aActivation & secretion] = Activated platelet → secretes fibrinogen and {[ThromboxaneA2 & ADP] → [INC (Gp2b/3a_platelet fibrinogen R) expression on platelets]}
→ 3rd: [aGgregation] of platelets via fibrinogen binding them together via [Gp2b/3a_platelet fibrinogen R]
= [weak 1º PLATELET PLUG]
______________________
How does Chronic Kidney Disease cause [mucosal bleeding1HS❌]?
__________________
1HS❌: [Primary Hemostasis platelet plugging disruption ]
patients with [Chronic Kidney Disease] have INC ____ dysfunction → what clinical presentation? (5)
platelet;
- CKD patient
- [1HS❌ (⇪ mucosal bleeding/bruising)]
- [platelet count nl]
- [PT/INR nl]
- [aPTT nl]
__________________
1HS: [Primary Hemostasis platelet plugging]
a. [Chronic Kidney Disease] causes dysfunction of [____ cells] which → ________
b. How does this happen?
a. platelet; [1HS❌ (⇪ mucosal bleeding/bruising)]
__________________
1HS: [Primary Hemostasis platelet plugging]
a. [Chronic Kidney Disease] causes dysfunction of [____ cells] which → ________
* * *
c. Treatment? (2)
a. platelet; [1HS❌ (⇪ mucosal bleeding/bruising)]
* * *
c.
- Sx = [desmopressin dDAVP (INC vWF secretion from endothelial cell)]IV or SQ
- Asx = observe
__________________
1HS: [Primary Hemostasis platelet plugging]
a. [Gp2b/3A receptor] is found on the ___ cell, is called ___ when deficient, and is responsible for what?
* * *
b. Name the [Gp2b/3A R Blockers] (3)
a. platelet;
[glanzmann thrombasthenia] ;
aGgregates platelets (—by binding [Activated platelet Gp2b/3A receptor] with a another [Activated platelet Gp2b/3A receptor] via fibrinogen)
b. “he ATE my Gp2b/3A”:
[Abciximab, Tirofiban, Eptifibatide]
__________________
[Gp1b receptor] is found on the ___ cell, is is called ___ when deficient, and is responsible for what?
a. platelet;
[Bernard-Soulier syndrome] ;
[aDheres [inactivated circulating platelets] to vWF (which will already be bound to exposed subendothelial collagen)
→platelet [Activation & secretion(of “F.A.T.” stuff)] → platelet aGgregation = [DAG 1HS]
In addition to analgesia, why is ASA also considered a blood thinner? (2)
ASA inhibits COX
✏️ { [platelet Arachidonic Acid] —(via COX)-→ converted to [TXA2 (thromboxane)] → [platelet TXA2 (ADP also)] INC expression of [Gp2b/3A_platelet fibrinogen R] which enables→ [platelet aGgregation] }
✏️ASA inhibits COX → No [TXA2 (thromboxane)]= No platelet aGgregation = No Clotting (“thins” your blood)
Which bleeding reversal agent should be used to treat DIC?
ffp
DVTs can either be primary or secondary
Describe what the main differences of secondary DVT are (4)
- reversible or
- time limited
- (ex: surgery, pregnancy, OCP, trauma)
- [Warfarin tx for only 3-6 months ( ≥6 mo for [1° idiopathic])]
What is the symptom triad for acute opioid intoxication
- depressed brain,* [= Somnolent/AMS]
- depressed blacks,* [“-pupils” = miosis])
- depressed breath* [= shallow bradypnea ≤12 RR]
Organophosphates MOA = ⬜
Where are they found? (2)
[potent inhibitors of AChE]
→ [No ACh–breakdown] → [ACh accumulation] → hyperactivation of mCN receptors =
{[“OTC dUMBBELLS Create Muscle”] ? …….PAID}
[agricultural pesticides], [sarin(WARFARE AGENT)]
_________________
mCN: muscarinic | CNS | Nicotinic
Organophosphates are potent inhibitors of ⬜ which leads to ⬜
Sx (11)
AChE ;
[ACh accumulation] → {[“OTC dUMBBELLS Create Muscle”] ? …….PAID}
[“OTC dUMBBELLS Create Muscle”]
Organophosphate _T_oxic Cholinergic :
- [diarrhea/Urination/Miosis/Bradycardia/Bronchospasm( → Respiratory failure) /Emesis/Liquid lung bronchorrhea /Lacrimation/Salivation]muscarinic
- [Coma/Seizure]CNS
- [Muscle(weakness/paralysis/fasciculation)]Nicotinic
Organophosphates are potent inhibitors of ⬜ which leads to ⬜
Treatment (4)
AChE ;
[ACh accumulation] → {[“OTC dUMBBELLS Create Muscle”] ? …….PAID}
PAID
- [Pralidoxime ⼀reactivates AChE]
- [Atropine anticholinergic⼀ competitively inhibits ACh]
- [Intubation prn + ABCs (give activated charcoal if exposure ≤1h)]
- [Decontamination]
cp for [Niacin B3] deficiency (4)
DDDD(AKA Pellagra)
Dementia
[Dry mouthSTOMATITIS / CHEILOSIS]
Diarrhea
[Dermatitissymmetrical/blister vesicles in sunexposed areas]
💡Niacin uses Tryptophan for synthesis, & CaRcinoid tumors do also
Radionuclide bone scans detect ⬜, which makes it sensitive for detecting [⬜ osteoLytic | osteoBLASTIC] bone metastasis (from ⬜ )
areas of INC bone turnover;
osteoBLASTIC(prostate/SOLC/Hodgkin)
Name the Cancers that metastasize into [osteoBLASTIC bone lesions] (3)
- Pt with osteoBLASTIC CA c/o dull shoulder pain, worse at night*
How do you work them up for potential bone metastasis? (4)
Prostate / SOLC / Hodgkin
Name the Cancers that metastasize into [osteoLytic bone lesions] (3)
- Pt with osteoLytic CA c/o dull shoulder pain, worse at night*
How do you work them up for potential bone metastasis? (3)
- nMn*
- N*onSOLC / Multiple Myeloma / NonHodgkin
- *
Name the Cancer that metastasizes to form [mixedosteoBLASTIC or osteoLytic bone lesions]
- Pt with mixed osteoB/L CA c/o dull shoulder pain, worse at night*
How do you work them up for potential bone metastasis? (5)
BREAST
Tx for Sickle Cell Pain Crisis - 4
1.Dehydration = [IV Hydration + IV Analgesia]
_________________
2.[Infxn (⊕fever|⊕WBC)] =cefTriaxone
_________________
3.Cold🌡=[Transfusion(if ⊕CVA|Retinal infarct|aCS| Priapism)
_________________
4.“Kan’t breathe_hypoxia” = [O2 + Hydoxyurea to carry more O2⇪HbF]
treat the 4 SCD triggers (DICK)
aCS = acute Chest Syndrome
Tx for Hereditary Spherocytosis - 2
- [Folic acid B9] chronically
- Splenectomy (stops hemolysis)
When is it ok to give Platelet transfusion to HUS|TTP?
NEVER!!!
give plasma EXCHANGETTP tx|supportiveHUS tx
TTP etx: [A13vM❌(or inhibition by shiga toxin in HUS)] →uncontrolled vWF chain cleavage → widespread platelet traps/activation → thrombocytopenia + microagio hemolytic anemia → FMNRT TTP cp ⚠️TTP cp (aside from +Neuro and plasma EXCHANGE tx) = HUS cp. ⼀ (TTP Tx = EXCHANGE plasma containing anti-A13vM or deficiency of A13vM for normal plasma)
What is the most common adverse reaction to blood transfusion?
What causes it?
When does it present?
1-6h[Febrile Nonhemolytic transfusion reaction] = F/C from cytokine accumulation during blood storage]
Autoimmune Hemolytic Anemia and Hereditary Spherocytosis BOTH can cause extravascular hemolytic anemia
How can you discern the two? - 2
[DAT] and [fam hx]
AIHA = [⊕DAT] (negative fam hx)
_________________
Hereditary Spherocytosis = [⊝DAT] (positive fam hx)
- DAT* = [Direct(Coombs) AntiHumanGlobulin Test]
What is the purpose of the
[Indirect_Coombs AntiHumanglobulin Test (IAT)]
_________________
Explain IAT MOA (2)
IAT = [Indirect_Coombs AntiHumanglobulin Test] =
▶Uses [IAT and test blood] in lab to determine if h_r serum contain [preformed IsoAgglutinins(IgM>IgG)] that agglutinate to common RBC antigens = “Antibody Screen”
▶Indirectly In Vitro: Mixes [test blood(which contain RBC loaded with common RBC antigens)] with host_recipient’s [plasma w/antibodies]. ⼀ The IAT will bind to any {h_r [Ab|compliment (IgM/IgG/C3d/C3/etc.)} that have inappropriately agglutinated to RBC common antigens→ IAT is visualized to identify the RBC antigens (if any) h_r Ab are sensitized to.
[IAT = Indirect CAT]:
*CAT: Coombs AntiHumanglobulin Test] // [g_d: graft_donor] // [h_r: host_recipient]
What is the purpose of the
[Direct_Coombs AntiHumanglobulin Test (DAT)]
_________________
Explain the DATMOA (3)
DAT = [Direct_Coombs AntiHumanglobulin Test] =
[CAT: Coombs AntiHumanglobulin Test] // [gd\ : graft_donor] // [hr: host_recipient]
_________________
DAT
▶Uses CAT to determine if [gd</sup>RBC] are ACTIVELY being Sensitized (and ultimately hemolyzed) by [Transfusion/Drug-Induced/ hr</sup>IgM]
▶DIRECTLY EN VIVO: host_recipient blood is taken and given CAT DIRECTLY → which will bind to (and allow us to visualize/identify) any {[hr\Ab|compliment (IgM>>IgG/C3d/C3/etc)] ACTIVELY agglutinating gd\RBC}
▶[⊕DAT is ALWAYS ABNORMAL] and usually comes from [host_recipient IgM and compliment] (</sup>but incomplete DAT comes from IgG | compliment acting alone)*
What conditions would you expect to find a
positive [Direct_Coombs AntiHumanglobulin Test (DAT)] (5)
DAT = [Direct_Coombs AntiHumanglobulin Test] =
[CAT: Coombs AntiHumanglobulin Test] // [gd\ : graft_donor] // [hr: host_recipient]
_________________
[⊕DAT occurs in ___]
- [Acute Intravascular Transfusion Hemolysis]
- [Delayed IgG EXtravascular Transfusion Hemolysis]
- [Drug-Induced IgG EXtravascular Transfusion Hemolysis]
- [Autoimmune Hemolysis]
- [HDN (Hemolytic Disease of Newborn)]
During Blood Transfusion both Anaphylaxis and Acute Hemolytic Reactions can occur within minutes
How do you differentiate the two based on:
Onset
Cause
≤minutes[Anaphylaxis (IgA-deficient pts’ anti-IgA antibodies attack donor IgA)] = [Respiratory Distress, Angioedema]tx = Epi, antihistamine, CTS, [CardioPulm support]
* * *
≤1 hr[Acute Hemolytic Reaction (ABO mismatch 2/2 clerical error vs chronic transfusions) → [Preformed IgM using compliment (will have ⊕DAT)] → Intravascular hemolysis ] = [Tachycardia/LumbarPain/Hgbnuria/Bleeding_hypOtension_DIC/ChestConstriction/FluLikeSx]tx = [NORMAL SALINE IVF]
During Blood Transfusion both Anaphylaxis and Acute Hemolytic Reactions can occur within minutes
How do you differentiate the two based on:
- Sx*
- Tx*
≤minutes[Anaphylaxis (IgA-deficient pts’ anti-IgA antibodies attack donor IgA)] =
[Respiratory Distress, Angioedema]tx = Epi, antihistamine, CTS, [CardioPulm support]
- ≤1 hr*[Acute Hemolytic Reaction (ABO mismatch 2/2 clerical error vs chronic transfusions) → [Preformed IgM using compliment (will have ⊕DAT)] → Intravascular hemolysis ] =
[Tachycardia/LumbarPain/Hgbnuria/Bleeding_hypOtension_DIC/ChestConstriction/FluLikeSx]tx = [NORMAL SALINE IVF]
[T or F]
[Premedication with antihistamines and APAP] can prevent blood transfusion reactions
FALSE
[CLL-SLL] is a ⬜ type of CA , associated with 4 sx ( ⬜4), all to which indicate a worse prognosis
How is [CLL-SLL] diagnosis confirmed? (2)
_________________
CLL-SLL: Chronic Lymphocytic Leukemia-Small Lymphocytic Lymphoma
[monoclonal B-lymphocyte leukemia]; LATO sx
LAD
Anemia
Thrombocytopenia
OrganomegalyLiver/Spleen
[smudge cells(peripheral smear)] and [flow cytometry]
What should you remember regarding Biopsying Metastatic Cancer ? (4)
Patients with
▨[limited CA: solely Organ/Organ’s lymph nodes] → limited bxorgan or organ LN]
▩ [EXTENSIVE CA: metastasis/involves supraclavicular LN → EXTENDED bxof one of the metastasized sites instead [(supraclavicular (if involved)] > other sites]
= this is because metastasized sites (like Supraclavicular LN excisional bx) tend to be ⬇︎invasive and ⬇︎complications for biopsy
_________________
ex: Pts with suspected metastatic Lung cancer (if possible)should have initial bx from one of the metastatic sites(SCLV-if involved) > other
Vancomycin Infusion Reaction
[NON-IgE] drug rxn involving vancomycin binding directly/activating mast cells → histamine release → [diffuse pruritus, erythema] ⼀proportional to infusion rate and resolved with d/c
CO binds with greater affinity than O2 to Hgb and interferes with O2 offloading
Describe the Symptom course for carbon Monoxide toxicity (9)
sx: “Monixide hurts my [MIND’S → SSSH]
Malaise
Irregularly SHARED HEADACHE (w/roommate, housemate, etc)
Nausea
Dizziness
Skin ∆ [PINK-like cYanide tox] or [BLUE-like methemoglobinemia tox]
* * *
Seizure/Syncope/Sleepy-COMA/Heart❌
tx: high-flow O2 via nonrebreather → hyperbaric oxygen
tx for Carbon Monoxide toxicity (2)
_________________
sx: “Monoxide hurts my [MIND’S → SSSH
[high flow O2 via nonrebreather] –(if severe)–> hyperbaric oxygen
Name the major causes of Carbon Monoxide toxicity (3)
_________________
What are 2 crucial diagnostics for Carbon Monoxide toxicity
_________________
sx: “Monoxide hurts my [MIND’S → SSSH]”
scombroid poisoning
a. etiology
* * *
b. symptoms (6)
a. *(often confused for allergic rxn) </sup>*in seafood stored at temperatures > 15C, histidine undergoes decarboxylation → histaM**ine =
b. [flushing |throbbing HA|palpitations|abd cramps|diarrhea|(oral burning +/- “bitter taste”)] 10-30m after ingesting (usually)FISH
Pufferfish Poisoning
symptoms (3)
*perioral tingling
*paralysis
*poor coordination
clinical features of Serum Sickness (3)
- [type 3 immune complex-mediated hypersensitivity rxn]
- primarily occurs after receiving [antibodiesMonoclonal/Chimeric] or [antitoxinsheterologous]
- SSLR = gzd urticaria + feverlow grade + arthralgia + LAD
_________________
SSLR: Serum Sickness-Like Reaction
Tx for [1º myelofibrosis (CIPM)]
_________________
CIPM: [Chronic Idiopathic Primary Myelofibrosis]
{ allogenic hematopoietic stem cell transplant < [60 Y/O]< palliative care }
Acute Leukemia will present with signs of _____
Which acute leukemia is associated with [Auer rods (eosinophilic inclusions)]?
PANcytopenia ; [aPL ⼀acute PROMyelocytic Leukemia M3 (T15/17)]
Dx = smear showing [myeloblast>20%] –> flow cytometry for confirmation
What are the toxicities for MTX?