Question

A urine specimen collected by free catch at 8 AM and left at room temperature until the afternoon could be expected to have:

A) Increased pH
B) Decreased specific gravity
C) Increased ammonia concentration
D) Bacterial overgrowth

Answer 1

A urine specimen collected by free catch at 8 AM and left at room temperature until the afternoon could be expected to have increased pH, decreased specific gravity, increased ammonia concentration, and bacterial overgrowth.

Step-by-step explanation:

A urine specimen collected by free catch at 8 AM and left at room temperature until the afternoon could be expected to have:

1. Increased pH
2. Decreased specific gravity
3. Increased ammonia concentration
4. Bacterial overgrowth

Specific gravity is a measure of the quantity of solutes per unit volume of a solution and is traditionally easier to measure than osmolarity. Urine will always have a specific gravity greater than pure water due to the presence of solutes. As urine is left at room temperature, bacterial overgrowth can occur, resulting in increased pH and ammonia concentration.