3 INTRODUCTION TO URINALYSIS Flashcards
The primary inorganic substance found in urine is:
A. Sodium
B. Phosphate
C. Chloride
D. Calcium
C. Chloride
An unidentified fluid is received in the laboratory with a request to determine whether the fluid is urine or another body fluid. Using routine laboratory tests, which substances would determine that the fluid is most probably urine?
A. Glucose and ketones
B. Urea and creatinine
C. Uric acid and amino acids
D. Protein and amino acids
B. Urea and creatinine
The average daily output of urine is:
A. 200 mL
B. 500 mL
C. 1200 mL
D. 2500 mL
C. 1200 mL
A patient presenting with polyuria, nocturia, polydipsia, and a low urine specific gravity is exhibiting symptoms of:
A. Diabetes insipidus
B. Diabetes mellitus
C. Urinary tract infection
D. Uremia
A. Diabetes insipidus
A patient with oliguria might progress to having:
A. Nocturia
B. Polyuria
C. Polydipsia
D. Anuria
D. Anuria
All of the following are characteristics of recommended urine containers except:
A. A flat bottom
B. A capacity of 50 mL
C. A snap-on lid
D. Are disposable
C. A snap-on lid
Labels for urine containers are:
A. Attached to the container
B. Attached to the lid
C. Placed on the container before collection
D. Not detachable
C. Placed on the container before collection
A urine specimen may be rejected by the laboratory for all of the following reasons except the fact that the:
A. Requisition form states the specimen is catheterized
B. Specimen contains toilet paper
C. Label and requisition form do not match
D. Outside of the container has contamination from fecal material
A. Requisition form states the specimen is catheterized
A cloudy specimen received in the laboratory may have been preserved using:
A. Boric acid
B. Chloroform
C. Refrigeration
D. Formalin
C. Refrigeration
For general screening, the specimen collected most frequently is a:
A. Random one
B. First morning
C. Midstream clean-catch
D. Timed
A. Random one
The primary advantage of a first morning specimen over a random specimen is that it:
A. Is less contaminated
B. Is more concentrated
C. Is less concentrated
D. Has a higher volume
B. Is more concentrated
If a routine urinalysis and a culture are requested on a catheterized specimen, then:
A. Two separate containers must be collected
B. The routine urinalysis is performed first
C. The patient must be recatheterized
D. The culture is performed first
D. The culture is performed first
If a patient fails to discard the first specimen when collecting a timed specimen, then the:
A. Specimen must be re-collected
B. Results will be falsely elevated
C. Results will be falsely decreased
D. Both A and B
D. Both A and B
The primary cause of unsatisfactory results in an unpreserved routine specimen not tested for 8 hours is:
A. Bacterial growth
B. Glycolysis
C. Decreased pH
D. Chemical oxidation
A. Bacterial growth
Prolonged exposure of a preserved urine specimen to light will cause:
A. Decreased glucose
B. Increased cells and casts
C. Decreased bilirubin
D. Increased bacteria
C. Decreased bilirubin
