Urine changes

Urine analysis is one of the most important tests that __________.

do not cause any injury to the patient

This simple test will discover any disease in the entire urinary tract.

Urine changes

Biochemical and microbiological changes occur when urine is left in the lab at room temperature for longer (________).

maybe over 24 hours

For routine urine analysis, freshly voided urine is better than the ______

catheterized sample.

Avoid urine contamination from the vaginal secretion (discharge) or hemorrhage. True or False

True

The best sample to check urine glucose is voided ______ hours after the last meal.

2 to 3

Urine is the best culture media for the _____

growth of bacteria

The best option is to examine urine within _____ of the collection, as the changes (decomposition) start during this time.

30 minutes

Examine the urine in the first _____ hours of collection.

1 to 2

If it is delayed, then refrigerate the urine at ______

4 °C.

What urine samples are to be rejected?

1. When urine has incorrect preservatives.

2. When the urine quantity is insufficient.

3. When urine is not collected with all needed precautions.

4. When there is a missing or incomplete request form.

5. When urine has no proper identification.

6. When urine shows contamination, such as in stool, etc.,

Urine normally becomes ________ when left at room temperature.

hazy or cloudy

_______ is quite a common cause of cloudy urine in female patients.

Vaginal contamination

After the food (vegetable/meat), _______may produce cloudiness in the urine.

urates or phosphate

The normal color of the urine darkens when standing for longer than 30 minutes due to the ________.

oxidation of urobilinogen to urobilin

If urine is kept for a long time at room temperature, it will give an _________ smell produced by the bacteria, which will decompose the urea in the urine.

ammonia

The growth of the ______ will change the pH to alkaline.

proteus

If urine is left at room temperature, after some time, it will become slowly alkaline due to _______

bacterial growth.

The urine becomes alkaline after being kept on the table at room temperature due to the _______.

bacteria’s urea-splitting enzyme

When urine is kept in the fridge, its _______ (false value).

specific gravity increases

After some time, urine glucose decreases due to ______.

glycolysis and utilization by the bacteria