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