Medicine Flashcards

1
Q

Generalizability

A

external validity; applicability of the obtained results beyond the cohort that was studied

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2
Q

CYP inhibitors that increase effect of Warfarin

A

acetaminophen, NSAIDs, metronidazole, amiodarone, cimetidine, cranberry juice, ginkgo biloba, vitamin E, omeprazole, thyroid hormone, SSRIs

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3
Q

CYP inducers that decrease effect of Warfarin

A

carbamazepine, ginseng, green vegetables, oral contraceptives, phenobarbital, rifampin, st. johns wort

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4
Q

What is the only oral medication approved for empiric treatment of acute pyelonephritis?

A

fluoroquinolones

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5
Q

What does nitrofurantoin treat?

A

uncomplicated cystitis

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6
Q

What does nitrofurantoin not treat pyelonephritis?

A

It does not adequately penetrate renal tissue

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7
Q

What lung cancer is associated with hypercalcemia?

A

squamous cell carcinoma

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8
Q

What lung cancer is associated with SIADH?

A

small cell carcinoma

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9
Q

What lung cancer is associated with ACTH production?

A

small cell carcinoma

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10
Q

Painless, transient monocular blindness lasting a few seconds & usually vascular in origin

A

Amaurosis fugax

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11
Q

What causes papilledema? & how does it present?

A

Increased intracranial pressure;

Presents with transient vision loss lasting a few seconds with changes in head position

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12
Q

What are the most common primary tumors to metastasize to the liver?

A

GI, lung, breast, skin

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13
Q

Common triggers of Stevens Johnson Syndrome?

A

Allopurinol, Sulfonamids, Anticonvulsants, NSAIDs, sulfasalazine

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14
Q

Clinical features of SJS?

A

coalescing erythematous macules, bullae, desquamation, mucositis, fever, tachycardia, hypotension, altered levels of consciousness, conjunctivitis, seizures, coma

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15
Q

Toxoplasmosis prophylaxis

A

Bactrim

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16
Q

Toxoplasmosis treatment

A

sulfadiazine & pyrimethamine

17
Q

How can you treat metabolic alkalosis?

A

Treat underlying cause, give normal saline

18
Q

Raising the cut-off point of a screening test does what to sensitivity and specificity?

A

Decreases sensitivity and increases specificity

19
Q

What cardiac abnormality is associated with hereditary hemochromatosis?

A

Restrictive or dilated cardiomyopathy or conduction abnormalities

20
Q

What is the first step in management of severe symptomatic hypercalcemia?

A

vigorous hydration with NS

21
Q

What is the drug of choice for hypercalcemia of malignancy?

A

Bisphosphonates

22
Q

What are side effects of trimethoprim regarding renal function?

A

Can cause hyperkalemia due to blockade of the epithelial sodium channels; competitively inhibits renal tubular creatinine secretion causing an artificial increase in serum creatinine without affecting GFR

23
Q

Most likely cause of chronic anterior knee pain that gets worse when climbing stairs in a young female & how do you test for it?

A

Patellofemoral syndrome–check for pain elicited by extending the knee while compressing the patella

24
Q

Cardiac physical exam findings of pericardial effusion without cardiac tamponade?

A

Diminished heart sounds and a non-palpable PMI

25
Q

Features of Conn’s syndrome?

A

Hypertension, hypokalemia, mild hypernatremia, metabolic alkalosis, low renin

26
Q

At what CD4 count are live vaccines contraindicated?

A
27
Q

What are the live vaccines?

A

MMR, varicella, zoster, live-attenuated influenza (spray), yellow fever

28
Q

Presenting features of post-streptococcal glomerulonephritis?

A

Presents 10-20 days after strep or skin infection:

  • periorbital swelling, hematuria, oliguria
  • UA shows hematuria w RBC casts & proteinuria
  • low serum C3
29
Q

Most common cause of out-of-hospital SCA?

A

sustained V-tach or V-fib due to myocardial ischemia or infarction

30
Q

Common sites affected by warfarin-induced skin necrosis?

A

breasts, butt, thighs, and abdomen

31
Q

What drugs have been shown to increase appetite and weight gain in patients w cancer-related anorexia or cachexia syndrome?

A

Progesterone analogs (megestrol acetate & medroxyprogesterone acetate) and corticosteroids

32
Q

First line treatment for tinea versicolor?

A

topical selenium sulfide or ketoconazole

33
Q

What is the preferred treatment for disseminated histo?

A

Itraconazole

34
Q

What symptoms make viral esophagitis more likely than Candidal esophagitis as the etiology for esophagitis in an AIDS patient?

A

severe odynophagia without dysphagia or thrush

35
Q

What drugs cause drug induced interstitial nephritis?

Presenting symptoms?

A

Cephalosporins, PCNs, sulfonamids, NSAIDs, rifampin, phenytoin, allopurinol.
Symptoms: arthralgias, rash, renal failure, and eosinophils on UA

36
Q

What is the usual presenting symptoms of central retinal artery occlusion?

A

painless loss of monocular vision

37
Q

How do you treat central retinal artery occlusion?

A

ocular massage and high-flow oxygen administration

38
Q

What should you be suspicious of if a hospitalized patient develops unexplained leukocytosis?

A

C. diff