Chapter 30 test bank, lab tech

Which of the following is an example of a quantitative test result?

500 mg/dL

How much urine does the normal adult excrete each day?

750-2000 ml

What is included in a complete urinalysis?

A chemical examination of urine Microscopic examination of urine sediment A physical examination of urine all of the above

If a freshly voided specimen is cloudy, it means that

A urinary tract infection may be present

A pH reading of 8 means that the urine specimen is

Alkalilne

When collecting a clean-catch midstream urine specimen, a front-to-back motion is used to cleanse the urinary meatus to

Avoid drawing microorganisms from the anal region into the area being cleansed

Polyuria may be caused by

Consumption of caffeine Diabetes mellitus Taking a diuretic Excessive intake of fluids all of the above

A 24-hour urine specimen may be collected to

Determine the cause of kidney stone formation

When collecting a clean-catch midstream urine specimen, a small amount of urine is voided into the toilet before obtaining the specimen to

Flush microorganisms out of the distal urethra

What is the name of the hormone present only in the urine and blood of a pregnant woman?

Human chorionic gonadotropin

What effect does concentrated urine have on red blood cells?

It causes them to shrink and become crenated.

Why is a first-voided morning specimen preferred for performing a microscopic examination of urine?

It contains more dissolved substances.

What does it mean if a urine specimen is light yellow?

The urine specimen does not contain many dissolved substances.

Which of the following represents an error in technique when testing a urine specimen with a reagent strip?

Touching the reagent areas with the finger

Which of the following tests requires a clean-catch midstream specimen?

Urine Culture

How should urine reagent strips be stored?

With the cap tightly closed, In a dry area, In a cool area, In a dark container all of the above

What odor does a urine specimen have if it has been allowed to stand at room temperature for long time?

ammonia

Which of the following urine tests may be positive when a patient has undiagnosed diabetes mellitus?

glucose

If the internal control of a urine pregnancy test does not perform as expected, the test results are interpreted as

invalid

What occurs if a urine specimen is allowed to stand for more than 1 hour at room temperature?

it become cloudy

What is the term for the presence of ketone bodies in the urine?

ketonuria

Blood may normally be present in the urine because of

mensturation

Which of the following test results indicates a concentrated urine specimen?

specific gravity is 1.025

For which of the following reasons may a urinalysis NOT be performed?

treat a patients condition

Which of the following is usually found in the urine sediment of a patient with candidiasis?

yeast