Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 24

A cloudy urine specimen turns black upon standing and has a specific gravity of 1.012. The major concern about this specimen would be:

A. Color

B. Turbidity

C. Specific gravity

D. All of the above

Step 1 of 2

Cloudy specimen:

Cloudy specimen indicates the presence of blood cells, epithelial cells, crystals, bacteria in urine

• The specimen when refrigerated produces non-pathologic turbidity.

• If a specimen is left uninterrupted for some time it develops turbidity.

• The cloudy specimen will turn black in color when it remains uninterrupted for some hours.

• 1.012 specific gravity urine specimen, do not affect the specimen color.

Therefore, “color” is the major concern when a urine specimen of cloudy nature with specific gravity of 1.012 turning black upon standing. Hence, the correct answer is option.