Question

Why should urines be refrigerated if testing for urea is not immediate?

a) To prevent bacterial growth
b) To enhance color development
c) To accelerate enzyme reactions
d) To reduce pH fluctuations

Answer 1

Refrigerating urine samples when testing for urea is not immediate is important to prevent bacterial growth and preserve sample integrity.

Step-by-step explanation:

When testing for urea in urine is not immediate, it is recommended to refrigerate the urine sample. This is done to prevent bacterial growth, as refrigeration helps inhibit the growth of bacteria that may contaminate the sample over time. Additionally, refrigeration can help preserve the integrity of the sample and prevent changes in pH, which may affect the accuracy of the urea test.