Uworld 9/11/14 Flashcards
When should warfarin be restarted after HIT?
After plt>150,000
What anticoagulants should be used immediately after Dx of HIT?
Direct thrombin inhibitors, e.g. Argatroban or bibalirudin, or fondaparinux.
What is the gold standard imaging modality for nephrolithiasis?
Non-contrast CT
What imaging modality is second choice for nephrolithiasis? Which should be used for pregnant women?
IVP
US
_______ is a common cause of bacterial infection in contact lens wearers.
Pseudomonas
Infertility + dyspareunia + dysmenorrhea make you think of _______.
endometriosis
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.
What is a possible dangerous complication if endometriosis involves the appendix, cecum, or colon?
intestinal obstruction
What is urine sodium in SIADH?
> 40
Ptosis and anisocoria are typical of CN ___ palsy, often associated with aneurysm of the _______.
III; posterior communicating artery (PCA)
What do you call the development of an enlarging pituitary adenoma following b/l adrenalectomy for Cushing’s syndrome?
Nelson’s syndrome
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.
What is the Tx for Nelson’s syndrome?
Surgical excision or pituitary radiation
Cyclosporine causes increased serum _______ levels by decreasing excretion by the kidneys.
Uric acid
Why might a hypothyroid patient need to increase their synthroid dose when they start OCPs?
Estrogen increases thyroid-binding globulin (TBG).
