[F] Quiz - Semen Analysis Flashcards
Maturation of spermatozoa takes place in the:
A. Sertoli cells
B. Seminiferous tubules
C. Epididymis
D. Seminal vesicles
C. Epididymis
Enzymes for the coagulation and liquefaction of semen are produced by the:
A. Seminal vesicles
B. Bulbourethral glands
C. Ductus deferens
D. Prostate gland
D. Prostate gland
The major component of seminal fluid is:
A. Glucose
B. Fructose
C. Acid phosphatase
D. Citric acid
B. Fructose
If the first portion of a semen specimen is not collected, the semen analysis will have which of the following?
A. Decreased pH
B. Increased viscosity
C. Decreased sperm count
D. Decreased sperm motility
C. Decreased sperm count
Failure of laboratory personnel to document the time a semen specimen is collected primarily affects the interpretation
of semen:
A. Appearance
B. Volume
C. pH
D. Viscosity
D. Viscosity
Liquefaction of a semen specimen should take place within:
A. 1 hour
B. 2 hours
C. 3 hours
D. 4 hours
A. 1 hour
A semen specimen delivered to the laboratory in a condom has a normal sperm count and markedly decreased sperm motility. This indicates:
A. Decreased fructose
B. Antispermicide in the condom
C. Increased semen viscosity
D. Increased semen alkalinity
B. Antispermicide in the condom
An increased semen pH may be caused by:
A. Poorly developed seminal vesicles
B. Increased prostatic secretions
C. Obstruction of the ejaculation duct
D. Prostatic infection
D. Prostatic infection
Proteolytic enzymes may be added to semen specimens to:
A. Increase the viscosity
B. Dilute the specimen
C. Decrease the viscosity
D. Neutralize the specimen
C. Decrease the viscosity
The normal sperm concentration is:
A. Less than 20 million/μL
B. More than 20 million/mL
C. Less than 20 million/mL
D. More than 20 million/μL
B. More than 20 million/mL
Given the following information, calculate the sperm
concentration: dilution, 1:20; sperm counted in five RBC squares on each side of the hemocytometer, 80 and 86; volume, 3 mL.
A. 80 million/mL
B. 83 million/mL
C. 86 million/mL
D. 169 million/μL
B. 83 million/mL
Using the information from question 11, calculate the sperm concentration when 80 sperm are counted in 1 WBC square and 86 sperm are counted in another WBC square.
A. 83 million/mL
B. 166 million per ejaculate
C. 16.6 million/mL
D. 50 million per ejaculate
C. 16.6 million/mL
The primary reason to dilute a semen specimen before performing a sperm concentration is to:
A. Immobilize the sperm
B. Facilitate the chamber count
C. Decrease the viscosity
D. Stain the sperm
A. Immobilize the sperm
When performing a sperm concentration, 60 sperm are counted in the RBC squares on one side of the hemocytometer and 90 sperm are counted in the RBC squares on the other side. The specimen is diluted 1:20. The:
A. Specimen should be rediluted and counted
B. Sperm count is 75 million/mL
C. Sperm count is greater than 5 million/mL
D. Sperm concentration is abnormal
A. Specimen should be rediluted and counted
Sperm motility evaluations are performed:
A. Immediately after the specimen is collected
B. Within 1 hour of collection
C. After 3 hours of incubation
D. At 6-hour intervals for 1 day
B. Within 1 hour of collection