The following results are obtained on a urinalysis from a student athlete:

-Based on the information given,what is causing the crenated RBCs?
A) Elevated protein
B) Presence of hyaline casts
C) High specific gravity
D) Presence of granular casts

Question

The following results are obtained on a urinalysis from a student athlete:
 
-Based on the information given,what is causing the crenated RBCs?
A) Elevated protein 
B) Presence of hyaline casts 
C) High specific gravity 
D) Presence of granular casts

Quizplus · Accepted Answer

Crenation of red blood cells occurs when they are placed in a hypertonic solution, causing water to leave the cells and causing them to shrink and become distorted in shape. A high specific gravity in urine indicates the presence of a concentrated urine sample, which could lead to hemolysis of red blood cells in the urine and ultimately crenation. Elevated protein levels could contribute to crenation as well, but it is not the most likely cause in this scenario. The presence of hyaline or granular casts would not directly cause crenation of RBCs.

The Following Results Are Obtained on a Urinalysis from a Student