IM Flashcards
EPISODIC headache, palpitations, sweating (diaphoresis)
Pheochromocytoma
In HIV/AIDS –> solitary esophageal ulcer, retinitis (floaters in eye), colitis
CMV
Myeloproliferative disorder –> increased RBCs, WBCs, platelets
Predisposes to Budd-Chiari syndrome
Polycythemia vera
Bicuspid aortic valve, coarctation of aorta
Short female, webbed neck (cystic hygromas), XO karyotype
Turner syndrome (heart defects)
Endocrine disorder w/ high correlation w/ pernicious anemia (megaloblastic anemia)
Hashimoto’s thyroiditis
Cold-agglutinin hemolytic anemia
“Squeaks” on ausc.
Mycoplasma/Chlamydia pneumonia
Common in women shortly after childbirth from position of holding/lifting baby
Inflammation of abductor pollicus longus & extensor pollicus brevis
de Quervain’s tenosynovitis
Inflammation and thrombosis in superficial veins (usually legs) that feel like palpable cords
Associated w/ pancreatic adenocarcinoma
Migratory thrombophlebitis (Trousseau syndrome)
Microcytic anemia w/ normal RBC count & normal RDW
MCV very low; hematocrit slightly reduced
Thalassemia
Refractory epigastric pain despite PPI treatment
Diarrhea & epigastric pain
Solitary ulcer in duodenum
Gastrinoma/ZE syndrome
Onset of hypertension in females under 35 yo
Activates RAAS (hypokalemia)
Fibromuscular dysplasia
Rhinorrhea, sneezing, allergic conjuctivitis
Classification: Intermittent (s/s 4 days/week or > 4 weeks) Mild Moderate-severe (1+ of following present): Impaired school work/performance Impaired daily/sport activities Sleep disturbance Troublesome s/s
Complications: sinusitis, asthma, nasal polyps
Allergic rhinosinusitis
Causes of reversible agranulocytosis
Hyperthyroidism drugs –> propylthiouracil & methimazole
Inflammatory disorder of small/medium blood vessels & nerves of extremities.
Look for:
MALE SMOKER
Normal proximal pulses; decreased-absent distal pulses
Ischemic ulcerations
Rest pain in distal extremities
Corkscrew pattern seen on angiogram (tortuous)
Thromboangiitis obliterans (Buerger disease)
RTA Type ____
Pathophys: No distal tubular acid secretion
Nephrocalcinosis & nephrolithiasis
U/A: alkalotic urine (high pH) w/ low serum H+ (low pH)
Hypokalmeia
Dx: acid load test
Tx: oral HCO3
RTA Type 1
RTA Type ___
Pathophys: No proximal tubular HCO3 absorption
Osteomalacia & rickets
U/A: alkalotic urine w/ deceased urine output
Hypokalmeia
Dx: HCO3 load test (levels stay low)
Tx: volume restriction first; may use HCO3/thiazides
RTA Type 2
RTA Type ___
Pathophys: Adrenal/aldosterone deficiency
*Hyperkalemia
U/A: Na excretion (high in urine) w/ K-H retention
Dx: Na restriction (high urinary sodium)
Tx: fludrocortisone
RTA Type 4
Adults w/ mild GI s/s and may have unexplained nutritional deficiencies
*Unresponsive Fe-deficiency anemia (repeated anemia refractory to tx)
Anti-endomysial Ab & Anti-tissue transglutaminase antibodies
Celiac disease
Anatomical variation that predisposes to AAA & aortic dissection
Bicuspid aortic valve
Large stone impacted in cystic duct that externally compresses & obstructs the adjacent common hepatic duct. Results in intrahepatic bile duct dilation w/ obstructive cholestasis (jaundice)
Mirizzi syndrome
Prone to arterial/venous thrombus formation b/c of hyper-coaguable state –> can manifest as flank pain & hematuria
Nephrotic syndrome (membranous nephropathy w/ decreased antithrombin III)
Bone marrow failure w/ TdT (+) cells; “meningeal leukemia” if relapsed
Tx w/ intrathecal methotrexate
ALL
Scleroderma is associated w/ esophageal dysfunction secondary to fibrosis. This defect in either 1) peristalsis or 2) LES function can lead to:
Chronic acid reflux
Drug that interrupts the interpretation of EKG during a presentation of ACS b/c it causes non-specific EKG changes
Digoxin
New onset ascites in elderly woman
Ovarian cancer (peritoneal carcinomatosis - ovarian mets to peritoneal cavity)
Fever, ALTERED MENTAL STATUS, microangiopathic hemolytic anemia, acute renal failure (not severe), thrombocytopenia, PURPURA
The drug Quinine associated w/ this
TTP (thrombotic thrombocytopenic purpura)
Seen mainly in children/teens after a GI infection w/ E.coli
UREMIA (elevated BUN/ammonia), post-infection, SEVERE RENAL FAILURE (high creatinine)
HUS (hemolytic uremic syndrome)
Dopamine INHIBITS what hormone?
Prolactin
High prolactin/low dopamine (usually drugs) causes decreased GnRH, LH, FSH
Oligomenorrhea, gynecomastia
Autoimmune disease of cartilage-containing structures (ear, nose, laryngotracheal tree)
Laryngotracheal inflammation & destruction leads to tracheal luminal narrowing and peritracheal inflammation, destroying the supportive matrix around the trachea –> COLLAPSE of trachea on expiration is exaggerated (decreased expiratory volume)
Polychondritis
Kaposi sarcoma associated with which virus and disease?
How does it appear and where?
Human Herpesvirus 8 (HHV-8)
AIDS defining disease
Multiple violaceous papules on LE, face, oral mucosa, and genitalia
Hypoglycemia that eventually causes nocturnal release of GH & cortisol –> causes nocturnal hyperglycemia that causes the increased morning glucose levels
Normal physiologic phenomenon
Dawn phenomenon
2 causes of acute renal failure (immediate)
IV contrast (direct toxicity to renal tubules) IV Acyclovir (causes crystaluria)
*Make sure you pre-treat w/ IV fluids before and after these 2
Abs that causes delayed renal failure (3 days after starting)
Vancomycin (long volume of distribution if PO)
Common causes of pancreatitis
Gallstones (female, fat, forty, fertile) EtOH Drugs (sulfas, HCTZ, HIV drugs - look if recently started) ERCP Hypertriglyceridemia (>1000)
Situations where MUST give IV fluids
Pancreatitis, sepsis, DKA
Causes of increased LFTs
TYLENOL OD (values in thousands) Acute viral hepatitis (values in hundreds) Shock liver (hypotension and decreased perfusion)
Contraindicated in ARF, EXCEPT in sclerodermal renal crisis (intra-renal B/L stenosis)
ACEi/ARB
Heparin bridging to Coumadin protocol
INR needs to be b/w 2-3 for 2 consecutive days
Need at least 4 days of heparin before D/C it
Coumadin-like drugs (Dabigatran, Apixaban, Rivaroxaban) and their effects
Pros:
Fewer strokes
Fewer major bleeds (joints, brain, eye cavity, spinal)
No INR monitoring
Cons:
More GI bleeds
No antidote
Sulfa drugs
Disrupt folate pathway –> cause megaloblastic anemia
Cocaine-related MI –> contraindication for what drug tx
B-blocker (results in hypertensive crisis)
Polymyalgia rheumatica association
Temporal arteritis
Transient monocular blindness from ischemia to retinal artery
Amaurosis fugax (associated w/ TIA)
Hollenhorst plaques: cholesterol emboli
2 common causes of painless, bright red rectal bleeding
Diverticulosis
Angiodysplasia (dilated, slow filling veins in colon wall)
6 P’s of vascular assessment
Pain, Pallor, Pulseless, Paralysis, Paresthesias, Poikloithermia (cold)
Drug causing fibrotic changes in lungs that can mimic cancer nodules & can also cause hypersensitivity pneumonitis
Methotrexate
Drugs that increase the QT interval
Anti-arrhythmics (Class I & III) Haloperidol, thioridazine Methadone, oxycodone Macrolides Ondansetron Quinolones, metronidazole, HIV drugs
Pneumonia w/ diarrhea & hyponatremia
Legionnaires
Pneumonia w/ hepatitis
Q fever
Asthma (allergic rhinitis), eosinophilia, vasculitis
Churgg-Strauss
Important formulas
Corrected Na = (Na) + [0.016 x (glucose - 100)]
Corrected Ca = measured Ca + [0.8 x (4 - Alb)]
Serum Osm = 2(Na) + [Glu/18] + [BUN/2.8]
Cockcroft-Gault (Cr clearance) = ([140-age] x wt) / (Cr x 72)
Classic Multiple Sclerosis onset of symptoms
Eye/visual problems (ophthalmoplegia) followed by foot/hand paralysis or numbness
Metoclopramide s/e
Parkinsonism-like s/s
Someone w/ WPW that presents w/ new onset AFib - DOC?
Procainamide
Anti-arrhythmic that interacts w/ Coumadin to increase INR?
Amiodarone - must decrease the Coumadin levels
Charcot’s triad?
3 signs with obstructive ascending CHOLANGITIS
1) fever
2) jaundice (total bilirubin >3)
3) RUQ pain
Reynold’s pentad?
Severe obstructive ascending cholangitis
Charcot’s triad + hypotension (shock) & altered mental status (confusion)
Side effect of concern w/ nitroprusside?
Antidote?
Methemoglobinemia (b/c nitroprusside contains cyanide)
Amyl nitrite
sodium nitrite, thiosulfate, hydroxycobalamin
What is Todd’s paralysis?
Transient focal neurological deficits that occur immediately AFTER a seizure (convulsions w/ intra-oral lesions & in continence) in the post-ictal phase and resolve after this phase
NOT a stroke!
Why glucagon for B-blocker OD?
Glucagon stimulates the production of cAMP via a pathway that is separate from the pathway that B-receptor activation causes increased cAMP production
Excessive B-blockers = decreased cAMP (hypoglycemia, bradycardia, hypotension, hyperkalemia)
Type of eating disorder where patient is a “perfectionist”
“Young patient who is extremely competitive and high-achieving with a low BMI (< 18.5)
Anorexia Nervosa
Only time to use benzo’s for delirium?
DT’s!
Benzo withdrawal
Signs of lead poisoning?
*Purple lines on gingiva (gums)
Foot/wrist drop
Antidote for methemoglobinemia?
Methylene Blue
*Different than CYANIDE poisoning (also from nitroprusside). The methylene blue converts Fe+3 –> Fe+2 where cyanide you need amyl nitrite to convert the remaining RBC to methemoglobin to bind the CN then give thiosulfate to regenerate the reducing power of glutathione
Patient develops dyspnea 2 days after beginning course of antibiotics for pyelonephritis. What is the diagnosis and why?
Acute respiratory distress syndrome (ARDS) –> 1-2 days after Abx are given, if the organism is gram NEGATIVE, the lysis of the bacteria release the endotoxins –> these endotoxins cause pulmonary injury, leading to capillary leakage of fluid into pulmonary interstitial space (“capillary leakage”)
What CMP component will be increased w/ a GI bleed and why?
BUN –> digested blood in the GI tract is a source of urea
Most common cause of testicular torsion?
Bell-Clapper deformity: the anterior portion of testicle is not anchored to the scrotum, allowing for testicle movement
Another common cause of torsion is during sleep when the cremaster muscle is active during REM
Prehyn’s test?
Support the base of testicles and elevate them - if this relieves the testicular pain –> think epididymitis
Helps to differentiate between testicular torsion (no pain relief) vs. epididymitis (relief of pain)
Highest risk for diabetic foot ulcers?
Diabetic Peripheral Neuropathy
MOA: multifactorial and is thought to result from vascular disease occluding the vasa nervorum; endothelial dysfunction; deficiency of myoinositol-altering myelin synthesis and diminishing sodium-potassium adenine triphosphatase (ATPase) activity; chronic hyperosmolarity, causing edema of nerve trunks; and effects of increased sorbitol and fructose. Other etiologies of diabetic ulceration include arterial disease, pressure, and foot deformity.
Cushing’s triad?
1) Irregular breathing/apnea
2) Increased MAP
3) Bradycardia
Suggests marked increase in ICP and impending brain herniation.
Earliest indicator of hypovolemia?
Decreased renal output
The renal blood flow is decreased as a compensatory mechanism to make blood volume available to the body.
Timeline of changes in hypotension:
Lower urine output –> + tilt test –> tachycardia
What to worry about when treating G(-) infections?
Endotoxins released from lysis of bacteria can cause damage throughout the body
E.g. –> endotoxins cause endothelial damage & pulmonary injury –> capillary leakage –> fluid moves from intravascular space into alveolar spaces –> ARDS!
What 2 compounds affect iron absorption in duodenum?
Vitamin C = increases iron absorption
Calcium = decreases iron absorption (have to be careful with women taking supplements during pregnancy)
Seizures vs Pseudoseizures?
Seizures
- Eyes are OPEN - Post-ictal period: confusion & altered mental status - "Floppy" appearance during event
Pseudoseizures
- Not true seizures, but they are real! - Eyes are CLOSED - No confusion or altered mental status - Immediately after, coherent and alert - During event, "tight" and rigid appearance
Low vs High doses of Epinephrine?
Low doses: B+ effects (increased HR/force; vasodilate & decreased TPR or diastolic pressure)
High doses: a+ effects (vasoconstrict & increase TPR or diastolic pressure)
CO monoxide poisoning - what do you see?
- Suspect more in winter time
- Pt has POOR O2 SATURATION, but physical exam is normal (clear airway, no increased breathing effort, no abnormal breath sounds, no discoloration of skin)
Tx: 100% O2 continuously
Recurrent thromboembolic events (DVT/PE) & recurrent miscarriages?
Antiphospholipid syndrome (APS)
- Recurrent small PE’s can result in pulmonary HTN –> progressive dyspnea
- Anti-phospholipid antibodies present (test w/ Lupus anticoagulant or anticardiolipin ELISA)
- Criteria
1) thrombosis in any organ/tissue or pregnancy (miscarriage)
2) persistently positive aPL levels (> 12 weeks apart in testing) - Dermatologic effects: digital cyanosis, livedo reticularis, digital gangrene, leg ulcers
- Tx:
- Aspirin (inhibit platelet aggregation)
- Warfarin (inhibit clotting cascade)
- LMWH/aspirin used in pregnancy b/c of teratogenic effects of warfarin
- Maintain INR b/w 2-3 FOR LIFE
3 types of holosystolic murmurs?
Tricuspid regurgitation (radiate to back) Mitral regurgitation (radiate to axilla) VSD
Cellulitis vs Stasis Dermatitis vs DVT?
Cellulitis: commonly asymmetrical (one leg)
* very PAINFUL - hot to touch, pattern of redness is uniform (same height on leg) - increased WBC - Tx: Abx (Keflex - cefalexin)
Stasis Dermatitis: result of venous insufficiency (blood pools in lower leg veins & fluid/RBC leak out into surrounding tissues)
* ITCHY - Skin looks like cobblestone (bumpy), dry/cracked - Skin sores can appear - Tx: topical steroid cream & ointment
DVT
* ALWAYS r/o in U/L leg swelling and pain! - Tx: Lovenox and Ultrasound of leg
Why is blood ammonia increased during GI bleed?
RBC digestion in the GI tract results in excess hemoglobin breakdown to basic proteins –> this increased nitrogen load is absorbed into bloodstream –> can lead to encephalopathy (confusion, altered mental status, etc)
Person presents w/ facial palsy (Bell’s palsy) & hearing loss on the same side along with vesicular-like lesions in/around the ear?
Ramsey-Hunt Syndrome
- VZV residing in geniculate ganglion (of CN7 & runs next to CN8 in internal acoustic meatus)
- Look for vesicles on the outer ear looking like zoster
- CN 7-8 involved (facial deficits + hearing loss all on one side)
Atypical presentation of MI?
U/L neck pain, nausea, vomiting –> esp in women/diabetics
U/L headache that is daily & continuous w/ pain-free periods w/ at least 1 of the following:
- conjunctival injection - lacrimation - nasal congestion - rhinorrhea - ptosis - miosis
Hemicrania Continuum
*Tx: indomethacin
PAINFUL goiter following a URI (viral illness)?
Subacute thryoidits (De Quervain’s)
Progression: hyperthyroid –> hypothyroid –> euthyroid
Characteristics of Papillary thyroid cancer?
Characteristics of Medullary thyroid cancer?
Papillary
- Psammoma bodies (concentric calcifications) - Orphan Annie bodies (cells appear empty)
Medullary
- Produce Calcitonin (marker for monitoring)
Person with tachycardia, high BP, sweating, anxiety and recently got over an infection or a stressor in their life?
Thyroid storm
- Usually follows a precipitating factor –> infection, stress, DKA
- Tx: aggressive fluids
Purpura is the hallmark of what process?
Leukocytoclastic vasculitis (small vessel vasculitis)
Caused by inflammation of small cutaneous vessels –> wall damage and extravasation of RBC into surrounding tissue –> seen as purpura
Palpable purpura is hallmark of what 2 infectious processes?
Neisseria meningitis & Rocky Mountain Spotted Fever
Why do you get alkalosis w/ taking loop diuretics?
Loops cause excretion of Na (& H2O), K, and Cl in the urine and lower the blood levels –> decreased K+ levels cause the K/H cellular pumps to transport H+ INTO cells and K+ OUT of cells to normalize blood K levels –> the drop in blood H+ levels causes alkalosis
What happens to cerebral blood flow with hypercapnia (increased blood CO2) and acidosis?
INCREASED cerebral blood flow
Effect on cerebral blood flow w/ hypocapnia (decreased blood CO2) and alkalosis?
DECREASED cerebral blood flow
**This is why you hyperventilate to reduce ICP via decreased intracranial blood volume
Disease where you have aneurysms (from loss of vaso vasorum) and either oral, ocular, or genital ulcers?
Behcet’s disease
2 main causes of gout and what test can differentiate the 2 causes?
Overproducer of uric acid
Underexcreter of uric acid
24hr urine collection for uric acid levels:
If high = overproducer
If low = underexcreter
What is treatment of choice for acute gout attack?
NSAIDs (indomethacin) or colchicine
What is treatment for overproducers of uric acid?
Allopurinol
What is treatment for underexcreters of uric acid?
Probenecid (blocks kidney organic anion transporter in PCT –> decreases uric acid reabsorption and increases excretion)
What is a concern for probenecid?
Blocks tubular secretion of penicillins, cephalosporins, sulfonamides, indomethacin –> levels will remain increased over longer period of time
Painless jaundice w/ non-painful palpable gallbladder. What is it until proven otherwise?
Pancreatic cancer (Courvoisier’s sign)
Red & tender spots (cords) in superficial veins that come and go in different areas of the body? What association?
Migratory thrombophlebitis (Trousseau syndrome)
Pancreatic cancer
What antibiotics are NEVER to be used with Coumadin? Why?
Sulfa drugs (Bactrim), Macrolides (except azithromycin)
They (-) CYP450 protein and cause an increase in drug levels in the blood
What conventional treatment helps eliminate restless leg syndrome?
Tonic water (quinine) –> quinine in it will (-) Mg & Ca flux across the sarcoplasmic reticulum in muscles
Autoimmune condition that attacks the skin?
Scleroderma
CREST syndrome manifestation of what disease?
Scleroderma
Calcinosis (hard calcium deposits in fingers)
Raynaud’s disease
Esophageal dysmotility (will see air-filled esophagus on CT scan)
Sclerodactyly (hardening of digits)
Telangectasias (capillaries near skin surface causing discoloration)
Explain graft vs host disease?
Immunologically-driven reaction from transplant of one person’s immunologically-active (immune cells are present in that tissue) tissue (bone marrow) into someone who is immunosuppressed b/c of treatment to prevent host from rejecting the graft. However, the graft’s immune cells proliferate and attack host cells. Mortality around 20%
Sclerosing cholangitis has higher incidence of what cancer?
What is Klatskin tumor?
Cholangiocarcinoma (bile duct cancer)
Klatskin: subtype of cholangiocarcinoma that forms at confluence of R & L hepatic bile ducts and causes obstruction of bile outflow, leading to contracted gallbladder
Before Rx-ing erectile dysfunction meds (Sildenafil, etc), what other drug must you ask about and is a contraindication?
Nitrates!! (blood pressure or angina)
*Cause large drop in blood pressures!
Progressive neurological disease involving upper and lower motor neurons - usually gradual onset of asymmetric weakness of distal limb?
Amyotrophic Lateral Sclerosis (ALS)
Middle age woman on several medications for blood pressure control presents to ER w/ gradually increasing blood pressure readings. Her normal pressures are around 115/75. Current BP is 210/115. CT shows narrowing of renal arteries. What is the cause?
Fibromuscular dysplasia
Causes of new-onset atrial fibrillation?
HEMP Hyperthyroidism EtOH (chronic EtOH or acute EtOH intoxication) Mitral stenosis (rheumatic fever) PE
CAD, CHF, MI, pneumothorax
Pearly pink nodules/papules related to sun exposure often seen on hands, face, neck?
Basal cell carcinoma
- spreads laterally then vertically - rarely spreads beyond primary site
Precursor lesion for squamous cell carcinoma?
Actinic keratosis
5 characteristics of melanoma?
ABCDE Asymmetrical shape Border irregularity Color variation Diameter >6mm Elevation
What iatrogenic condition can result in locked-in syndrome?
Central pontine myelinolysis from rapid correction of hyponatremia –> want around 10 mEq/24hrs
Compete paralysis of voluntary muscles in all parts of the body EXCEPT for those that control eye movement
Male patient has increasing weakness of his urine stream and in last 24 hrs has not urinated at all. He is very uncomfortable and when a catheter is attempted, it meets resistance w/ no urine discharge. Blood starts oozing from the catheter. What do you do next?
Suprapubic tube placement –> percutaneous bedside technique under ultrasound guidance
Used to relieve urinary retention w/ bladder outlet obstruction & possible hydronephrosis
What test should always be done to male w/ acute onset testicular pain? Why?
Doppler ultrasound to r/o testicular torsion
45 yo male w/ low back pain radiating to scrotum, dysuria, and pain of defecation. Tried several courses of Abx, w/ symptoms recurring 1 week after stopping each therapy. On rectal exam, prostate is enlarged w/ areas of tenderness and fluctuance. What is it?
Prostatic abscess
*Suspect when a man develops repeated UTI’s w/ improve w/ Abx, but recur after therapy ends.
***Presence of fluctuant mass in prostate = prostatic abscess
What is Morton neuroma?
Enlarged nerve located in foot’s 3rd interspace b/w 3rd & 4th toes –> diagnosis made by eliciting extreme pain on palpation in that area.
Look for woman w/ high-heeled shoes, standing in them all day
88 yo male w/ findings consistent w/ localized prostate cancer, but has multiple overlying comordibities. What is next best step in mgmt?
NO intervention –> no PSA, no biopsy, nothing
Disease-specific survival rates for localized prostate cancer at 10 years was 83% for those who did NOT receive therapy –> with his multiple other comorbidities, he may die from those instead of prostate cancer
Vague RUQ discomfort w/ recent wt loss in a 60 yo alcoholic woman w/ cirrhosis from Hep C. What are you thinking? What blood marker is most helpful?
Hepatocellular carcinoma –> increased aFP (correlates w/ tumor size)
*Solitary tumor in liver w/ RUQ discomfort + wt loss
In someone with bladder cancer, what is a feared complication?
B/L hydronephrosis
*Think bladder cancer in pts w/ hx of smoking, urinary obstruction (leading to hydronephrosis), and/or hematuria
Treatment for temporal arteritis? What is a common association?
Corticosteroids
Polymyalgia rheumatica
Why does serum Na drop during prolonged vomiting or diarrhea?
GI tract fluids have Na concentration similar to plasma; as these fluids are lost (vomiting or diarrhea), the Na levels will drop due to lack of absorption from GI tract –> these fluids should be replaced w/ isotonic, Na-containing fluids. However, most people drink water (hypotonic) –> the body retains this water b/c of its volume depletion –> results in dilutional hyponatremia
Dilutional hyponatremia –> when isotonic fluids are lost (vomiting/diarrhea) and replaced by hypotonic (water) fluids.
81 yo found on living room floor. Last seen 3 days ago. Obtunded but breathing spontaneously and hemodynamically stable. Temp 100.7 w/ tender, tense R calf. K 5.9, BUN 88, Cr 3.5, lactic acid 2.6, CK 7,200, WBC 17,000. What does he have? What is appropriate mgmt?
Rhabdomyolysis (immobilized position, elevated CK): from pressure injury & can cause ARF
- CK and hyperkalemia –> from crush injury leading to leakage of K, CK, & myoglobin out of cells into blood –> myoglobin precipitated in kidney tubules & changes into acid hematin leading to renal failure
- Urgent hemodialysis
Indications for urgent hemodialysis?
AEIOU
A: acidosis (severe)
E: electrolytes (hyperkalemia)
I: intoxication w/ nephrotoxic substances (ethylene glycol)
O: overload (fluid in renal/CHF patients)
U: uremia (mental status changes or pericardial effusion)
How do you prevent rhabdomyolysis-induced renal failure?
IV fluids + Alkalization of urine w/ NaHCO3 (sodium bicarb) –> facilitates excretion of myoglobin, preventing tubular injury
24 yo suffered subarachnoid bleed from ruptured aneurysm 4 days ago and is now recovering. He Na level is gradually decreasing despite being on fluid restriction. He is clinically euvolemic, but has high urine osmolality & specific gravity w/ salt wasting, elevated fractional excreted Na and total urinary sodium level. What is the cause? What is appropriate tx?
Syndrome of inappropriate ADH release (SIADH)
- Occur in patients w/ recent head trauma or major CNS procedure - Assn w/ small-cell carcinoma of lung (ectopic ADH production) - Clinical euvolemic - High urine osmolality (concentrated) - Fractional excretion of Na is high (water w/o salt is retained)
Tx: ADH (-) –> demeclocycline, lithium
58 yo woman found to have elevated serum Ca and parathyroid hormone. She is asymptomatic and does NOT want elective surgery but rather close medical f/u. What therapy should she start?
Most likely parathyroid adenoma –> only cure is surgery
Tx: Estrogen-progestin tx helps in post-menopausal women w/ primary hyperparathyroidism
- Estrogen-progestin helps reduce bone resorption & thus increase bone density and possibly decrease serum Ca levels
Painless sore on glans of penis –> rough surface that began to enlarge to develop into painless ulcer. 2 new sexual partners in past year w/ no protection. Small, palpable lymph nodes felt in his inguinal area B/L. VDRL (-). What is it?
Squamous cell carcinoma of penis
*First symptom of penile cancer = painless, exophytic growth –> ulcerated nodule or a flat ulcer that does not heal but enlarges progressively.
If not response to conservative tx, need to confirm w/ biopsy.
Describe Menetrier’s disease. What 4 side effects are often seen?
Excess mucus production in the stomach
1) Protein-losing enteropathy (low albumin, edema)
2) Hypertrophy of gastric rugae
3) No gastric acid production
4) Diarrhea
Patient presents w/ watery diarrhea of sudden onset. Colonoscopy is normal and histopathology of colon biopsy reveals significant lymphocytes. What is the diagnosis?
Microscopic colitis –> normal appearance but inflammatory cells on histology
Assn w/ autoimmune diseases, drugs (PPI, H2(-), NSAIDs)
Tx: corticosteroids
What is Marjolin’s ulcer?
Aggressive ulcerating SCC that results from long-term, continuous mitotic activity as epidermal cells attempt to resurface the open deficit –> becomes a malignant transformation of a chronic wound
Slow growing, painless, and no lymphatic spread due to destruction of local lymphatics
**Seen in BURNS, osteomyelitis ulcer, venous stasis ulcer, chronic inflammation, scarred skin
Describe characteristics of seborrheic keratosis
Benign Painless Yellow/brown and greasy in appearance Warty-like "Stuck-on" appearance
Autosomal dominant
What medication can help reduce the systemic response of hyper metabolism and increased catecholamine release due to SIRS/sepsis?
Propranolol –> B-adrenoreceptors responsible for increased catabolism and reaction to stress
Which laboratory sign is an indicator of severe sepsis?
Hyponatremia
What is a ganglion cyst?
What is treatment?
If removing it, what part is crucial to removal or it will reappear?
Non-neoplastic soft tissue lump most often on/near joints and tendons of hands or feet. Formed from sheaths of collagen from joint space and communicates w/ joint space via pedicle
Tx: 50% resolve spontaneously
If surgically removing it, need to remove the pedicle!
What is a carcinoma?
What are its 2 subtypes?
Malignant neoplasm of epithelial origin or internal/external lining of body
1) Adenocarcinoma –> glandular origin
2) Squamous cell –> squamous epithelium
What is sarcoma?
Treatment of choice?
Cancer originating from mesoderm (bones, tendons, cartilage, muscle, fat - the supportive & connective tissue)
Tx: Wide-margined excisions w/ keeping patients functional reserve in mind (using that area after removal)
Diagnostic of choice for any soft tissue mass?
MRI –> analyze surrounding tissue
What are most common EKG findings for PE?
Non-specific ST-segment & T-wave changes
What EKG finding is pathognomonic for R-heart failure, usually from large PE?
S1Q3T3
S waves in Lead 1
Q waves in Lead 3
Inverted T waves in Lead 3
Common side effect of steroids that are often overlooked?
Steroid-induced Psychosis!
Why are chronic steroids such an issue, especially during surgery?
Chronic steroid use causes (-) of HPA axis by (-) CRH & ACTH secretion –> (-) cortisol made by adrenals –> adrenals shrink due to low production –> during times of stress (surgery), they can’t produce the high quantity of steroids needed
Results in shock (low BP, tachycardia)
Pt presents w/ chronic history of intermittent episodes of severe, crushing chest pain radiating to back and jaw lasting from seconds to minutes. Pain accompanied w/ dysphagia triggered by ingestion of certain foods. Cardiac workups have been negative. What 2 diagnoses are clinically indistinguishable and what further test will differentiate them?
Diffuse esophageal spasm & Nutcracker esophagus
Manometry
DES: high-intensity disorganized contractions w/ NORMAL resting LES pressure
Nutcracker: INCREASED resting LES pressure
Young female (20-30’s) smoker is wanting protection from getting pregnant. She receives a course of oral contraceptive pills from her OBGYN. Several days/months later, she develops one-sided leg pain and swelling. It hurts to touch her leg & when she lifts her foot up towards the sky. What is it?
DVT!!!!
This presentation is pathognomonic for USMLE
Young female
Smoker
OCP’s
*One-sided calf pain, tenderness, (+) Homans sign
(+/- leg edema)
What pathogen causes infection in lymphatics leading to chronic fibrosis w/ non-pitting lymphedema?
Wuchereria bancrofti –> filariasis
Bruit heard near groin (one side) & patient has a high resting HR. Progressive one-sided leg swelling has occurred over several months. What is it? What medical history component is a common preceding incident?
Femoral arteriovenous malformation
- Hx of penetrating trauma –> leads to AV malformation
- Groin bruit + high resting HR = femoral AVM
What is overflow/stress incontinence?
What is best initial treatment?
Why not 5a-reductase (-)?
Large prostate causes outlet obstruction and traps a large amount of urine in the bladder. The involuntary urine loss (during cough, sneeze) occurs when bladder pressure > urethral pressure.
Tx: alpha-blocker (doxazosin, terazosin, tamsulosin) –> these RELAX the sphincter, allowing easier voiding
5a-reductase (-) –> takes a LONG TIME to act (up to FULL YEAR) so not appropriate for immediate relief
What is urge incontinence?
Appropriate initial tx?
Bladder hyperactivity causing frequent bladder emptying –> NO warning w/ sudden urge to urinate & can’t hold it
Tx: anti-spasmodics (oxybutynin & tolterodine) –> help relax the detrusor muscle
Same day after surgery, a smoker develops fever. What is most likely cause? What is treatment?
Day 1 Post-Op Fever = Atelectasis!
Incentive spirometry to improve ventilation via deep breathing, coughing
Man presents to ER after being struck by a car. He has a subarachnoid hemorrhage and has to be intubated. The next day develops bradycardia, BP of 130/80, and is not over breathing the ventilator. What is next appropriate step in mgmt?
*Reduce intracranial pressure
Least invasive first:
- Raise head of the bed - Sedation w/ propofol - Hyperventilation (PaCO2 30-35) - Mannitol (osmotic diuretic)
*Cushing triad: bradycardia, hypertension, irregular respiratory pattern
What is Cushing’s triad & when is it seen?
1) Bradycardia
2) Hypertension (relative)
3) Irregular breathing pattern
*Seen w/ increased ICP
Progressive dysphagia to both solids and liquids w/ a massively dilated proximal esophagus & narrowed, tapered distal esophagus on barium swallow. What is it? What is pathophys? What are 3 other associations w/ it?
Achalasia: failure of LES to relax due to loss of inhibitory neurons (nitrous oxide releasing neurons) in LES
Most idiopathic, but other associations:
- Chagas disease (reduviid bug) - Lymphoma - Gastric carcinoma
- NO progression pattern to solids then liquids (seen in esophageal carcinoma)
- Barium swallow –> “bird’s beak” (proximal dilation of esophagus w/ narrowed lower esophagus)
What 3 tests are performed for workup of a prostate nodule?
1) DRE
2) PSA levels
3) Biopsy (want histologic diagnosis & Gleason score)
Do biopsy when:
- Can't distinguish b/w a cyst - Can't distinguish b/w benign or cancerous condition - Staging
- Gleason score - grading system determined by cellular features of prostate cancer cells that correlates w/ clinical behavior)
- Higher score = greater likelihood of spread outside of prostate
What is initial drug choice for treatment of BPH? What is next step in therapy if the first choice drug fails?
1st choice: a-adrenergic (-)
- tamsulosin, doxazosin
2nd choice: 5a-reductase (-)
- finasteride, dutasteride - blocks intracellular conversion of testosterone to DHT and shrinks hyperplastic prostate tissue & helps reduce progression of BPH
Unmonitored use of blood thinners can cause coagulopathy & worsen a GI bleed. What is the first & second steps in management?
1st step: hemodynamic stability –> transfusing blood pdts
2nd step: reversal of elevated INR
*Acute setting = FFP
*Prolonged effects on clotting cascade = Vitamin K
Patient presents w/ blood in the stool, high ALP, high total bilirubin, and anemia. What should you consider? Next best step(s)?
Duodenal tumor obstructing common bile duct (Ampulla of Vater)
1) Upper abd ultrasound –> shows dilated intra & extra hepatic ducts
2) Upper endoscopy to confirm suspicion
3) Biopsy tissue
Pt with protracted diarrhea recently develops jaundice and has high ALP and total/direct bilirubin levels. RUQ ultrasound shows strictures and dilations of intrahepatic & extra hepatic ducts. What is it? What 2 types of cancer is this patient most at risk for?
Primary sclerosing cholangitis (PSC)
- Seen w/ Inflammatory Bowel Disease (Ulcerative Colitis)
- Look for intermittent cramping & bloody diarrhea
Cholangiocarcinoma & colon cancer
66 yo woman who underwent laparotomy 1 week ago recently develops chest pain, shortness of breath, & has head and neck vein distention. Her vitals show tachycardia, tachypnea, and a loud S2. His ABGs find hypoxemia and hypocapnia and EKG is normal. What is next best test?
Spiral CT scan
- Heparin is better option before CT scan
Massive PE causes cor pulmonale –> seen by hypotension & neck vein distension.
- Risk factors for PE:
- Orthopedic surgeries
- Hypercoagulable states (OCPs, Factor V Leiden mutation, antithrombin III deficiency)
- Prolonged immobilization
- Malignancy
What is most appropriate step of someone w/ longstanding GERD?
Endoscopy w/ biopsies
- Anyone w/ epigastric pain, older than 45 yo, (+) stool guaiac, wt loss, or dysphagia/odynophagia –> needs endoscopy and biopsies
- Mucosal biopsies in stomach for H. pylori
Man w/ chronic pancreatitis has LUQ pain & has no jaundice or spider angiomata. Abdomen is NT, ND, no caput medusa. The spleen tip is palpable. Upper endoscopy shows profound gastric varices but no esophageal varies. What is diagnosis?
Splenic vein thrombosis
Well described complication of chronic pancreatitis –> splenic vein runs along posterior surface of pancreas & adjacent inflammation can eventually induce thrombosis
Gastric varices seen b/c gastric mucosa vessels drain into an obstructed splenic vein
NO esophageal varices
Woman presents w/ fever & chills, RUQ pain and jaundice. She had a laparoscopic cholecystectomy 3 months ago. Her ALP and direct bilirubin are very high. Ultrasound shows extremely dilated intrahepatic ducts but common bile duct can’t be visualized. What is most likely diagnosis?
Iatrogenic stricture of common bile duct
Look for biliary colic & obstructive jaundice (high ALP & direct bilirubin)
CBD strictures get infected and cause cholangitis –> look for Charcot triad (fever/chills, RUQ pain, jaundice)
72 yo Norwegian w/ contracted hand that can’t be extended or placed flat on a table. It has developed gradually over many years. Palpable fascial nodules are present. What is it?
Dupuytren contracture: palmar fascial disease resulting in shortening & thickening of fibrous bands in hands/fingers
Seen in older men of Scandinavian descent
Best treatment for acute prostatitis? What bugs cause it?
E. coli, Chlamydia
*Fluoroquinolone (ofloxacin) covers both E. coli & Chlamydia –> need for 4-6 weeks to ensure adequate levels of drug in prostate
Risk factors for gallstones? Best test to confirm/look for gallstones?
5 F’s –> Fat, Fertile (kids), Forty, Female, Fair
Ultrasound of RUQ
Best initial treatment for hemorrhoids?
Conservative: sitz baths, local anesthetics, high-fiber diet, lots of fluids
For herniated spinal disc, what is initial imaging study and treatment? Always assess what with disc herniation?
Imaging –> MRI
Tx: pain control w/ resolution overtime
**Always assess bowel/bladder function for emergency cauda equina syndrome