Medicine Flashcards
Most common cause of odynophagia/dysphagia in HIV patient
candidal esophagitis (presents w/thrush)
Tx of candidal esophagitis
1 - 2 week course of fluconazole + biopsy if refractory
HIV patients with severe odynophagia without oral thrush
ulcerative esophagitis from CMV
Tx of CMV ulcerative esophagitis
ganciclovir
Presentation of CMV ulcerative esophagitis
focal substernal burning pain with odynophagia + large, shallow, superficial ulcerations (linear) + intranuclear and intracytoplasmic inclusions + distal esophagus
Tx of apthous ulcers
prednisone
Presentation of HSV esophagitis
multiple, small, well-circumscribed volcano-like ulcers + ballooning degeneration and eosinophilic intranuclear inclusions
Tx of HSV esophagitis
acyclovir
Malaria ppx for ovale and vivax (Korea)
primaquine
Malaria ppx for p falciparum (Africa, S. Asia, Amazon)
mefloquine, atovaquone-proguanil, or doxycycline
Malaria ppx during pregnancy
mefloquine
Adverse Effect of mefloquine
neuropsychiatric
Presentation of Crohn’s
esophagus to anus, skip lesions, c/b strictures, anal fissures, intestinal fistula
Lab findings of every chronic inflammatory disease can include…
anemia and thrombocytosis
_____ is associated w/diarrhea and weight loss but does not cause significant abdominal pain and leukocytosis.
Celiac disease
Diverticulitis is associated w/ constipation or diarrhea?
constipation
UC or Crohn’s is associated with bloody diarrhea?
UC
Suspect ____ in a young patient with chronic diarrhea, abdominal pain, and weight loss
IBD
Most commonly involved bones in Paget’s disease of bone/osteitis deformans
femur, axial skeleton, skull
How does osteitis deformans lead to deafness?
hypertrophy of the skull compresses vestibulocochlear nerve
Lab abnormalities in Paget’s disease/osteitis deformans
normal calcium/phosphate
elevated alk phos from bone degradation
elevated hydroxyproline, deoxypyridinoline, N/C telopeptide AKA bone degradation markers
_______ is associated with hypercalcemia, hypophosphatemia, and increased alkphos
hyperparathyroidism
Hypercalcemia in the setting of normal phosphate and alkphos my be observed in ______
milk-alkali sydnrome
Serum _____ is decreased in immune complex-mediated kidney disease such as SLE and poststrep glomerulonephritis
C3 is reduced because immune complex deposition triggers complement cascade AKA consumptive deficiency
IgE mediated kidney disease occurs in _____
allergic interstitial nephritis (e.g. methicillin induced nephritis)
In what disease do cytotoxic antibodies cause kidney damage?
goodpasture’s
In what disease does delayed hypersensitivity cause kidney damage?
non-specific chronic glomerulonephritis
RA affects ___ joints
MCP and PIP
Gout: poly vs monoarticular
80% monoarticular
Characteristic radiographic findings in hemochromatosis-associated arthropathy
squared off bone ends and hook like osteophytes in second and third MCP
OA affects ____ hand joints
DIP
Major radiographic findings of OA in hands
joint space narrowing, subchondral sclerosis, osteophytes, subchondral cysts
Clinical features of PSC
fatigue and pruritis + underlying IBD (UC)
Biopsy findings of PSC
fibrous obliteration of small bile ducts with onion skin concentric replacement w/ connective tissue
5 complications of PSC
intra/extrahepatic biliary stricture
cholangitis/cholelithiasis (cholesterol and pigment stones)
cholangiocarcinoma
cholestasis (reduced fat soluble vitamins and osteoporosis)
colon cancer
+/- portal hypertension and liver failure
Lab findings of PSC
elevated liver function tests but <300 severely elevated alkphos and bilirubin hypergammaglobulinemia increased serum IgM atypical perinuclear antineutrophil cytoplasmic antibodies
Dx of PSC
cholangiogram (ERCP/MRCP) showing multifocal narrowing w/intra/extrahepatic duct dilation AKA beading or liver biospy
Presentation of acute bacterial cholangitis
severe jaundice, fever, RUQ pain, leukocytosis
Women get PBC/PSC
PBC
Association of PBC w/ IBD
none
Adverse effects of digoxin
GI (anorexia, n/v)
Bidirectional ventricular tachycardia
Accelerated junctional rhythms
*verapamil reduces renal clearance of digoxin and increases toxicity
Presentation of pancreatitis
abdominal pain radiating to back
n/v
Presentation of mesenteric ischemia
severe abdominal pain out of proportion to exam w/ risk factor like afib
Clinical signs of AVF
widened pulse pressure strong peripheral arterial pulsation (brisk carotid upstroke) systolic flow murmur tachycardia flushed extremities displaced PMI LVH on EKG
Cardiac consequence of AVF
increased preload, decreased SVR –> increased CO
increased HR to meet oxygen requirements of peripheral tissues
Causes of high-output heart failure
thyrotoxicosis, AVF, paget’s disease, anemia, thiamine deficiency
Dx of AVF
doppler u/s
Risk factors for acute diverticulitis
constipation and low fiber intake
Tx of diverticulitis
IV antibiotics
CT those who are refractory to abx in case of complication (abcess, fistula, perforation)
Tx of progressive pain in pt w/prostate cancer and bony mets?
- orchiectomy/androgen ablation
2. radiation
How effective is cervical cordotomy in controlling axial pain/pain in UE?
not effective
Aspirin sensitivity syndrome is believed to be a _______ reaction
pseudo-allergic reaction –> results from prostaglandin/leukotriene misbalance
Tx of aspirin sensitivity syndrome
leukotriene receptor antagonist
Presentation of aspirin sensitivity syndrome
hx aspirin ingestion
persistent nasal blockage
episodes of bronchoconstriction w/ periodic breathing difficulty +wheezing
Transmission of HepB
sex, IV drugs
What is fulminant hepatic failure?
hepatic encephalopathy w/in 8 weeks of onset of acute liver failure
Tx of FHF
- TRANSPLANT
2. fresh frozen plasma + Vit K to manage coagulopathy
Tx of acute HepB
interferon + lamivudine
Presentation of HP
cough, breathlessness, fever, malaise 4-6 hours after antigen exposure
Chronic findings in HP
ground glass opacities w/honeycombing fibrosis w/haziness of the lower lung fields
weight loss, clubbing
Tx of essential tremor
beta-blockers
primidone AKA phenobarb
Adverse effect of primidone
acute intermittent porphyria presents as abdominal pain, neurologic, and psychiatric abnormalities
Dx of acute intermittent porphyria
urine porphobilinogen
How effective is diazepam in treating essential tremor?
not.
Mutation associated with primary polycythemia vera
JAK2 V617F
Are serum epo levels high or low in polycythemia vera?
low b/c primary PCV is epo-independent RBC production
Presentation of polycythemia vera
headache, dizziness, visual disturbances, pruritis (from mast cell dengranulation), peptic ulcer (histamine), hypertension from blood volume, facial plethora, splenomegaly, hepatomegaly
Lab findings in polycythemia vera
elevated hgb/hct/platelets/wbc, thrombosis, bleeding, normal o2 sat, hypercellular bone marrow, normal/low ESR, low iron
BCR-ABL is usually seen in
CML
Does CML cause elevated hgb/leukocytosis/thrombocytosis?
leukocytosis and thrombocytosis but not hgb elevation
Extreme fatigue, malaise, sore throat, fever, maculopapular rash +/- posterior cervical lymphadenopathy and palatal petichiae and splenomegaly
mono
Lab findings in mono
leukocytosis w/variant/atypical lymphocytes + heterophile antibodies (may be negative early in illness)
Peripheral smear finding in ALL
blasts (easy to remember: young cells in young people)
Peripheral smear findings in CLL
mature small lymphocytes (remember: little old cells in little old people) –> leukemia of old age
Findings in CML
leukocytosis, basophilia, thrombocytosis, splenomegaly (no lymphadenopathy)
Peripheral smear findings in hodgkin’s
normal blood smear, reed-sternberg cells in lymph node biospy
Cutaneous tumor with dome-shaped nodule and central keratinous plug
Keratoacanthoma
Cutaneous golf-ball size lesion
lipoma
Inflammatory ring-like skin lesions with peripheral scaling
fungal infection like tinea
Stuck on skin lesion, well circumscribed, scaley, hyperpigmented on trunk, face and UE
seborrheic keratosis
Clinical presentation of GBS
symmetric, ascending weakness w/ absent DTR after recent infectious illness
can have bulbar symptoms like dysphasia and respiratory compromise
mild sensory paresthesias and ataxia possible
Dx of GBS
LP: elevated CSF protein w/normal WBC AKA albuminocytologic dissociation
electromyogram
elevated CSF protein w/normal WBC
albuminocytologic dissociation feature of GBS
Tx of GBS
supportive care
IVIG or plasmapheresis
Tx of myasthenia gravis
cyclosporine
pyridostigmine
Clinical presentation of myasthenia gravis
often ocular symptoms (ptosis/diplopia) and fluctuating muscle weakness worse late in the day w/normal DTR
Findings in HSV encephalitis
AMS ,focal deficits, seizures, fever, lymphocytic pleocytosis on LP
Tx of HSV encephalitis
iv acylcovir
Tx of AML
riluzole
Which bug is classically associated with GBS?
c. jejuni
Serum findings in Vitamin D deficiency
low calcium and phosphate –> secondary hyperparathyroidism which brings calcium back up closer to normal and leads to further phosphate dumping to worsen hypophosphatemia
also low vitamin d and elevated alkphos
X ray findings in vitamin D deficiency
osteomalacia: decreased bone density w/ cortical thinning, codfish vertebral bodies and pseudofractures
Serum findings in primary hyperparathyroidism
elevated pth, elevated calcium, decreased phosphate
Serum findings in hypoparathyroidism
low calcium, low pth, high phosphate
Difference in presentation of osteoporosis and osteomalacia
osteomalcia: complaints of bone pain and muscle weakness w/xray findings of decreased bone density and pseudofractures
Presentation of respiratory TB
fever, night sweats, weight loss, cough +/- blood, CXR w/apical cavitary lesions +/- AFB stain
Most likely cause of ascites
cirrhosis from alcohol liver dz and hepC
Signs and symptoms of cirrhosis
asterixis, milkmaid sign, jaundice, terry’s nails, palmar erythema, caput medusae, pruritis, confusion, spider angiomas, fluid wave/ascites, pleural effusion (low breath sounds), splenomegaly, decreased leukocytes (get stuck in spleen)
Most common cause of SAH
ruptured berry aneurysm
Clinical features of SAH
severe thunderclap headache @ onset of neurologic symptoms (focal deficits uncommon)
meningeal irritation w/neck stiffness
Complications of SAH
rebleeding (24h) vasospasm (after 3 days) hydrocephalus/increased intracranial pressure seizure hyponatremia from SIADH
Dx of SAH
noncontrast head CT w/ lp (xanthochromia after 6 hours onset) +/-cerebral angiography
Tx of SAH
coil w/ stent
nimodipine and hyperdynamic tx to reduce vasospasm
When does Todd’s palsy typically occur?
after focal motor seizure
_____ is the major cause of delayed morbidity and mortality in SAH and can result in cerebral infarct
vasospasm
give nimodipine
Presentation of subacute hydrocephalus post SAH
headache w/ progressive mental decline and multiple neurologic deficits from compression–> usually not unilateral
What kind of reaction is anaphylaxis?
Type 1 hypersensitivity w/ preformed IgE from previous exposure
Tx of anaphylaxis
epi (bronchodilation and vasoconstriction)
w/adjunct bronchodilator, anithistamine, steroid, more vasoconstrictors (dopamine)
Effect of increased pH on calcium
increase in albumin bound calcium (decrease in io calcium) –> features of hypocalcemia like crampy pain, paresthesias, carpopedal spasm)
Can you have signs of hypocalcemia w/a normal total calcium?
yes–> e.g. if you increase pH and reduce io calcium b/c it gets bound up w/albumin
Major causes of secondary bacterial PNA
strep pneumo, staph aureus, hflu
Which cause of secondary bacterial PNA can cause post-viral URI necrotizing pulmonary bronchopneumonia w/ nodular infiltrates and cavitary abscesses?
Staph aureus
What’s a positive ppd?
> 5 in HIV+, recent contact w/TB+ person, signs of TB on CXR, organ transplant/immunocompromised
10 in recent immigrants, IV drugs, high-risk settings, diabetes, CKD, malignancy, fibrotic lung disease, kids
15 healthy people
Tx of +PPD w/normal CXR
tx for latent tb: daily INH for six months or INH +pyridoxine for 9 months
Tx for active TB
INH + rifampin + pyrazinamide for 8 weeks followed by 5 months of INH and rifampin
Can cocaine cause ST elevations
yes via coronary vasospasm–> tx for STEMI
Can cocaine cause dissection
yes
What causes grave’s opthalmopathy
autoimmune attack on EOM w/ lymphocytic infiltrate and causing edema, proliferation of fibroblasts, deposition of gag’s which pushes out the eye–> associated with sandy/gritty eyes b/c of corneal exposure
Do thyroid hormone levels cause protopsis?
no –> graves causes lymphocytic infiltrate in EOMs that causes exopthalmos
Hypernatremia w/ urine osmolality < serum osmolality suggests
diabetes insipidus (dilute urine aka dumping water even w/hypernatremia)
central: usually higher [Na] b/c no thirst mechanism
- ->differentiate central and nephrogenic w/ desmopressin –> nephrogenic won’t respond
How do we differentiate DI from primary polydipsia
water deprivation test- -> if urine osmolality increases, it’s primary polydipsia
Tx of SIADH
demeclocylcine –> inserts aquaporins in cortical collecting tubule –> dilutes urine
can also use tolvaptan but has lots of adverse effects
Tx of nephrogenic DI
HCTZ
Tx of central DI
desmopressin
RUQ pain + n/v + fever + abdominal crepitus w/o peritonitis + air fluid levels in gallbladder + curvilinear gas shadowing in gallbladder
emphysematous cholecystitis –> gas forming bacteria (clostridium ,ecoli, staph, strep, psuedo, klebsiella) in older men
Risk factors for emphysematous cholecystitis
vascular compromise of cystic artery, immunosuppression, gallstones, infection w/gas forming bugs
Tx of emphysematous cholecystitis
fluid/electrolytes, chole, pip tazo or quinolone + flagyl
u/s findings in pt w/acute calculous cholecystitis
gallstones w/o air fluid levels or gas shadowing
radiographic finding in peptic ulcer perf
free air under diaphragm
Charcot’s triad
jaundice, fever, RUQ pain = acute cholangitis due to biliary tract obstruction and post-obstructive infection
can be due to choledocholithiasis, biliary stenting, malignancy –> alk phos and wbc elevated
Hypercalcemia + lung malignancy = what cancer?
squamous cell AKA sCa++mous cell –> from pthrp which causes increased bone resorption and increased renal resorption in distal tubule
Paraneoplastic phenomena common in small cell lung cancer
siadh and acth production
Lung cancer associated w/hypertrophic pulmonary osteoarthropathy
adenocarcinoma
Tx of stroke w/ presentation 3-4 hours after symptom onset and no contraindictations
IV alteplase
Tx of stroke w/o prior antiplatelet tx
aspirin
Tx of stroke on aspirin tx
apsirin + dipyridamole or clopidogrel
Tx of stroke on aspirin tx w/ large intracranial atherosclerosis
aspirin + clopidogrel
Tx of stroke w/ afib
long term warfarin or dabigatran or rivaroxaban
Does early anticoagulation reduce risk of recurrent stroke?
nope (even in those w/afib) …don’t give heparin
What is the only tx that is effective in reducing risk of early recurrent stroke?
aspirin –> give w/in 24 hours in ischemic stroke
What should we think if a pt w/ COPD has clubbing
probs has cancer –> COPD doesn’t usually have clubbing on its own
Skin findings in acute meningococcemia
petechial rash that progressis to ecchymosis, bullae, vesciles, and gangrenous necrosis + fever, n/v, myalgias, meningeal signs
Clinical findings in TSS
fever, hypotension, diffuse macular erythroderma, skin desquamation (1-2 weeks after), multi organ system failure
What toxin causes TSS
staph TSS toxin 1–> T cell activation and cytokine megahurricane
Why does Sjogren’s cause firmness and enlargement of salivary glands?
lymphocytic infiltration
Which disease? Ro/SSA and La/SSB abs
sjogrens
Which disease? ama abs
PBC
Clinical findings in sjogren’s
dry mouth/eyes AKA keratoconjunctivitis sicca and xerostomia
Tx of nephrolithiasis in pt’s w/normal renal function
NSAIDs + fluid…narcotics cause n/v
Tx of hyperkalemia
- calcium gluconate for arrhythmia
- insulin/beta agonist for cellular shift
- kayexalate aka sodium polystyrene sulfonate to poop it out
- low k diet
What common medications cause sinus brady?
dig, beta blockers, ca channel blockers
1st and 2nd step in tx of sinus brady
IV atropine –> immediate increase in hr by reducing vagal input
transcutaneous pacing
only give epi if hemodynamically unstable
What is the role of adenosine in tx of arrhythmias?
helps identify supraventricular tachycardia by causing temporary av block
Tx of sinus brady in hemodynamically compromised
epi
Role of amiodarone in tx of arrhythmias?
supraventricular and ventricular tachycardias –> slows SA and AV node
De Quervain tenosynovitis
inflammation of pollicus tendons in mothers who hold their babies with thumb outstretched –> can elicit tenderness at radial side of wrist at base of hand
Pain w/ radial flexion of wrist and point tenderness over trapezium
flexor carpii radialis tenosynovitis
Multiple rib fractures + respiratory distress = consider ____
flail chest (esp if there is a visible lung contusion + fractures on CXR)
CXR appearance of esophageal rupture
subq crepitus in chest w/ pneumomediastinum
Classical feature of stage 1 hepatic encephalopathy
altered sleep pattern –> progress to stage 4 (stupor and coma) w/ addition of typical symptoms of HE
What can trigger hepatic encephalopathy?
anything that puts a load on the liver: hypoxia, toxins (like opiates), hypoglycemia, excess nitrogen load, gi bleeding, hypovolemia, infection, surgical shunting
Symptoms that help distinguish Legionella from other causes of CAP
high fever, GI symptoms, neurologic
Gram stain of legionella typically shows:
neutrophils w/no organisms (hard to stain)
Definitive dx of legionella CAP
growth on charcoal agar, urinary antigen testing
Tx of legionella CAP
azithromycin or levoflox
Ab of choice in aspiration pneumonia
clindamycin
Tx of pulmonary cryptococcal infection
fluconazole
Earliest renal abnormality in diabetic
hyperfiltration
Why do ACE-I help in diabetic nephropathy?
reduce glomerular hypertension –> reduce renal damage
Progression of diabetic nephropathy
glomerular hyperfiltration –> GBM thickening –> mesangial expansion –> nodular sclerosis
First quantifiable change in diabetic nephropathy
GBM thickening
Describe the pathogenesis of HIT
heparin + IgG + PF4 + platelet –> early activation of splenic macrophages to clear platelets + activation of platelets
== thrombocytopenia + arterial/venous thrombosis
Spontaneous hemarthrosis =
hemophilia
Most common cause of hemarthrosis
trauma > vascular damage > hemophilia
________ is characterized by fluctuating cognitive impairment and bizarre visual hallucinations +/-motor features of parkinson’s
lewy body dementia
_____ is a progressive dementia with initial memory loss, language difficulty, apraxia, followed by impaired judgement and personality changes.
Alzheimer’s
Associations with alzheimer’s
age, female, family hx, head trauma, downs
______ dementia is characterized by motor and sensory dysfunction.
multi infarct
Association’s with multi infarct dementia
age, male, black, smoking, htn, diabetes, vasculitis
_____ is associated with general cortical involvement + decrease in concentration + memory loss + dysarthria, tremors, irritability, mild headaches + personality changes (irresponsibility, confusion, psychosis)
neurosyphilis
______ dementia is associated with personality changes, compulsions, hyperorality, and impaired memory.
frontotemporal/pick’s
Dx of DKA
glucose > 250, ph < 7.3/bicarb < 15-20, detection of plasma ketones
Tx of DKA
normal saline + insulin, K –> D5/.45 saline once hemodynamically stable
Indications for bicarb
sever acidosis < 5, or severe hypokalemia
Risk of giving bicarb
cerebral edema and left shift of oxygen curve causing poor tissue oxygenation
Tx of stye
warm compress –> I/D if refractory 48 hours
Tx of chalazion
(granulomatous inflammation of meibomian gland) –> incision and curettage
Weight loss + diabetes + diarrhea + anemia + necrolytic migratory erythema (coalescing plaques/papules that form large painful inflammatory blisters w/crusting and central clearing in perineum, extremities, and face)
glucagonoma
Dx of glucagonoma
glucagon levels > 500 pg/mL
Why is FNA of testicular masses contraindicated
spillage of cancer cells into lymphatics and blood vessels
Symptoms of theophylline toxicity
headache, insomnia, seizures, GI (n/v), arrhythmia in context of drugs affecting cytochrome oxidase (cipro, erythro, clarithro, verapamil, cimetidine) or illness (cirrhosis, resp + fever)
What marker is elevated w/pheo?
plasma fractionated metanephrines
Clinical presentation of pheo
headache, sweating, tachycardia, paroxysmal hypertension
LFT abnormality w/o evidence of necrosis or fatty changes in a woman
ocp
Dx of Type 1 autoimmune hepatitis
ANA +/- SMA
2 hematologic complications of mono
- AIHA
- thrombocytopenia
–> cross reactivity of EBV antibodies –> IgM cold agglutinin (coombs test positive) mediated destruction of rbcs/platelets 2-3 weeks after symptoms
*splenic rupture is another complication
Sore throat w/ pseudomembrane formation
Cornyebacterium infection –> c/b dilated cardiomyopathy
Fatigue + hyperpigmentation + hypotension + eosinophilia + hyponatremia +hyperkalemia
How do we dx this?
primary adrenal insufficiency (Addison’s, infections, surgical, hemorrhage, mets)
- basal morning cortisol
- ACTH
- cosyntropin (ACTH analogue –> measure cortisol response –> low in primary AI)
Dx of cushing’s
24 hour urinary cortisol + low-dose dexamethasone suppression test
Which vaccines are live and contraindicated in HIV patients?
BCG, anthrax, oral typhoid, intranasal influenza, oral polio
*MMR, varicella, yellow fever and zostercan be given if CD4>200 and no history of AIDS defining illness
Single or multiple rounded dome shaped papules w/central umbilication on face, lower abdomen, genitals
molluscum contagiosum
Pruritis, papules, and vesicles over elbows, knees, buttocks, posterior neck, and scalp
dermatitis herpetiformis
Genetic associations with dermatitis herpetiformis
HLA B88, Dr3 and DQw2
Superficial aggregated small vesicles, papules, pustules over trunk with itching and burning in hot/moist climate
milaria
Bright red, friable, exophytic nodules in HIV infected patient
bacillary angiomatosis
Tx of bacillary angiomatosis
oral erythromycin
What kind of disorders are associated with gout due to increased catabolism/turnover of purines?
myeloproliferative
Gout crystals are ____ birefringent
-
Bloody diarrhea + flask shaped colonic ulcers + trophozoites on stool exam
E. histolytica
Charcot’s joint
neurogenic arthropathy usually due to diabetic neuropathy
Rat bit lesion on xray
gout –> punch out erosion w/overhanging rim of cortical bone
Common causes of avascular necrosis
steroids, trauma, lupus, sickle cell
Optho manifestations of sarcoid
anterior uveitis, posterior uveitis
Lofgren’s syndrome
manifestation of sarcoid: erythema nodosum hilar adenopathy migratory polyarthralgias fever
Cardiac analog to Raynaud’s
Printzmetal’s angina: coronary artery vasospasm triggered by cold, exercise, stress –> usually presents in middle of night w/transient ST elevation
Tx of Printzmetal’s angina
calcium channel blockers and nitrates
Tx of sickle cell stroke
exchange transfusion + hdyroxurea (reduces HgbF)
Microcytic/hypochromic anemia w/elevated serum iron and decreased TIBC.
sideroblastic –> dimorphic RBCs (normo and hypochromic)
*ringed sideroblasts on bone marrow biospy
Tx of sideroblastic anemia
B6/pyridoxine
Common drug cause of sideroblastic anemia
isoniazid
Intermittent but chhronic abdominal pain + weight loss + alcohol use + diarrhea
chronic pancreatitis
Preferred screening test for HIV infection
ELISA
What marker is + in UC?
pANCA
Extracolonic manifestations of UC
episcleritis, ankylosing spondylitis, cholangitis, erythema nodosum, pyoderma gangrenosum
Serologic finding in celiac disease
anti-endomysial and anti-transglutaminase
Characteristic cutaneous finding celiac disease
dermatitis herpetiformis
Protean disease with chronic malabsorptive diarrhea + weight loss + migratory non-deforming arthritis + lymphadenopathy + fever
Whipple’s disease : tropheryma whippelii
HLA association with IBD
HLA B27
hyponatremia + serum osmolality > 290
hyperglycemia or renal failure
hyponatremia + low serum osmolality < 100 + urine osmolality < 100
primary polydipsia, malnutrition
hyponatremia + normal serum osmolality + high [sodium]>25
siadh, adrenal insufficiency, hypothyroidism
hyponatremia + normal serum osmolality + low urinary [sodium ]
volume depletion, chf, cirrhosis
Tx of SIADH
mild: fluid restriction, oral salt tablets, loop
moderate: hypertonic saline
severe: hypertonic saline +/- vasopressin antagonists (conivaptan)
Key difference in GBS and tickborne paralysis
GBS has autonomic involvement
Descending paralysis w/early cranial nerve involvement
botulism
Rapidly ascending paralysis w/o fever/sensory abnormality, normal CSF exam
tickborne