Chapter 30 practice quiz
When performing a microscopic examination of urine, the presence of how many white blood cells/HPF is considered normal?
0-8
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?
750-2,000 mL
If a freshly voided specimen is cloudy, it means that
A urinary tract infection may be present
The pH of most urine specimens is
Acidic
A pH reading of 8 means that the urine specimen is
Alkaline
What odor does a urine specimen have if it has been allowed to stand at room temperature for long time ?
Ammonia
Failure of the kidneys to produce urine
Anuria
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
Which of the following urine tests may be positive when a patient has hepatitis ?
Bilirubin
Hematuria
Blood present in the urine
Oliguria
Decreased output of urine
A 24-hour urine specimen may be collected to
Determine the cause of kidney stone formation
Secretion and passage of large amounts of urine
Diuresis
Difficult or painful urination
Dysuria
Which of the following does NOT result in oliguria?
Edema
Polyuria may be caused by
Excessive intake of fluids; consumption of caffeine; diabetes mellitus; taking a diuretic
Nocturia
Excessive urination during the night
The type of specimen that should be used to test for the presence of nitrite in the urine is
First-voided morning specimen
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 uretha
Which of the following urine tests may be positive when a patient had undiagnosed diabetes mellitus
Glucose
What is the name of the hormone present only in the urine and blood of a pregnant women
Human chronic gonadotropin
Nocturnal enuresis
Inability to control urination at night
Polyuria
Increased output of the urine
if the internal control of a urine pregnancy test does not perform as expected, the test results are interpreted as
Invalid
Which of the following test is NOT positive when a patient has a urinary tract infection?
Ketone bodies
Blood may normally be present in the urine because of
Menstruation
Micturition
Normal act of voiding
Glycosuria
Presence of sugar in the urine
Pyuria
Pus present in the urine
Which of the following test results indicates a concentrated urine specimen?
Specific gravity: 1.025
Frequency
The condition of having to urinate often
Urgency
The immediate need to urinate
Retention
The inability to empty the bladder ; the urine is being produced normally by the kidneys, but is not being voided
Urinary incontinence
The inability to retain urine
what does it mean if urine specimen is light yellow
The urine specimen does not contain many dissolved substance
Which of the following represents an error in technique when testing a urine specimen with a reagent?
Touching the reagent areas with the fingers
For which of the following reasons may a urinalysis NOT be performed
Treat a patient for the presence of disease
Which of the following substances is normally present in urine ?
Urea
which of the following normally contains microorganisms?
Urinary meatus
Which of the following test requires a clean- catch midstream specimen?
Urine culture
Which of the following is usually found in the urine sediment of a patient with candidiasis
Yeast
What is included in a complete urinalysis?
a physical examination of urine; chemical exam of urine; microscopic examination of urine sediment
How should urine reagent strips be stored?
in a cool area; in a dark container; in a dry area; with the cap tightly closed
Casts are formed
in the lumen of the nephron tubules
What occurs if a urine specimen is allowed to stand for more than 1 hour at room temperature?
it becomes cloudy
what affect does concentrated urine have on red blood cells?
it causes them to shrink and become crenated
Why is a first-voided morning specimen preferred to performing a microscopic examination of urine?
it contains more dissolved substances
What is the term for the presence of ketone bodies in the urine ?
ketonuria
Which of the following represents an error in technique when performing a urine pregnancy test?
the specific gravity of the specimen is 1.003
The presence of bile pigments in a urine specimen causes the specimen to be
yellow- brown