Step II NBME test help

[drake19]

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Hi I had a few questions from the NBMEs any help is appreciated

9. For 4 hours, 55 y/o has acute intermittnet pain beginning in right flank, radiates to right testicle. Most likely finding on UA.

A) RBC casts
B) oval fat bodies
C) pH 7.1
D) protein +1
E) RBC 30 / hpf (in sediment)
F) Specific gravity 1.002
G WBC 10 / hpf

It is not RBC casts

 

[Bluefiya]

rbcs?? could be ph too depending on the type of stone but they didn't tell us that so

 

[Apoplexy__]

This is nephrolithiasis, so you're expecting blood.

Casts = Intra-renal origin. That applies to all casts -- for example, if you see WBC casts, it's not just regular pyuria, and you have something like pyelonephritis or interstitial nephritis. The casts are formed from material being molded by renal tubules, so you wouldn't see RBC casts in a renal stone.

Gotta be E, RBC's.