Uworld 9/11/14 Flashcards Preview

Intern Year > Uworld 9/11/14 > Flashcards

Flashcards in Uworld 9/11/14 Deck (21):
0

What anticoagulants should be used immediately after Dx of HIT?

Direct thrombin inhibitors, e.g. Argatroban or bibalirudin, or fondaparinux.

1

When should warfarin be restarted after HIT?

After plt>150,000

2

What is the gold standard imaging modality for nephrolithiasis?

Non-contrast CT

4

What imaging modality is second choice for nephrolithiasis? Which should be used for pregnant women?

IVP
US

5

_______ is a common cause of bacterial infection in contact lens wearers.

Pseudomonas

6

Infertility + dyspareunia + dysmenorrhea make you think of _______.

endometriosis

7

What are the most commonly involved sites in endometriosis in order (at least 3)?

ovaries, posterior cul-de-sac, broad ligament, uterosacral ligament, rectosigmoid colon, bladder, distal ureter.

8

What is a possible dangerous complication if endometriosis involves the appendix, cecum, or colon?

intestinal obstruction

9

What is urine sodium in SIADH?

>40

10

Ptosis and anisocoria are typical of CN ___ palsy, often associated with aneurysm of the _______.

III; posterior communicating artery (PCA)

11

What do you call the development of an enlarging pituitary adenoma following b/l adrenalectomy for Cushing's syndrome?

Nelson's syndrome

12

What 2 components are necessary for the diagnosis of Nelson's syndrome?

MRI evidence of suprasellar extension of pituitary adenoma and extremely high plasma ACTH levels.

13

What is the Tx for Nelson's syndrome?

Surgical excision or pituitary radiation

14

Cyclosporine causes increased serum _______ levels by decreasing excretion by the kidneys.

Uric acid

15

Why might a hypothyroid patient need to increase their synthroid dose when they start OCPs?

Estrogen increases thyroid-binding globulin (TBG).

16

How long after starting OCPs should a hypothyroid pt get their TSH checked?

12 wks

17

Which class of antibiotics is most likely to trigger seizures or other adverse CNS events?

beta-lactams (specifically, penicillins, cephalosporins, monobactams, carbapenems, and fluoroquinolones)

18

What does the MELD scoring system predict?

90 mortality from liver disease

19

What 3 lab values must be plugged in to calculate the MELD score?

total bilirubin, INR, and Cr

20

The MELD score is used to assess patients for which 2 procedures?

TIPS (best outcome if >14) and liver transplant (higher score, higher priority)

21

Why must pilots wait 6 hours after taking Viagra to fly a plane?

effects blue-green color vision