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
