The quizzes about Semen (33 tests)

Maturation of spermatozoa takes place in the:

Sertoli cells

Seminiferous tubules

Epididymis

Seminal vesicles

Correct! Wrong!

Enzymes for the coagulation and liquefaction of semen are produced by the:

Seminal vesicles

Bulbourethral glands

Ductus deferens

Prostate gland

The major component of seminal fluid is:

Correct! Wrong!

The major component of seminal fluid is:

Glucose

Fructose

Acid phosphatase

Citric acid

Correct! Wrong!

If the first portion of a semen specimen is not collected, the semen analysis will have an abnormal:

Viscosity

Sperm concentration

Sperm motility

Correct! Wrong!

Failure of laboratory personnel to document the time a semen sample is collected primarily affects the interpretation of semen:

Appearance

Volume

Viscosity

Correct! Wrong!

Liquefaction of a semen specimen should take place within:

1 hour

2 hours

3 hours

4 hours

Correct! Wrong!

A semen specimen delivered to the laboratory in a condom has a normal sperm count and markedly decreased sperm motility. This is indicative of:

Decreased fructose

Antispermicide in the condom

Increased semen viscosity

Increased semen alkalinity

Correct! Wrong!

An increased semen pH may be caused by:

Prostatic infection

Decreased prostatic secretions

Decreased bulbourethral gland secretions

All of the above

Correct! Wrong!

Proteolytic enzymes may be added to semen specimens to:

Increase the viscosity

Dilute the specimen

Decrease the viscosity

Neutralize the specimen

Correct! Wrong!

The normal sperm concentration is:

Below 20 million per microliter

Above 20 million per milliliter

Below 20 million per milliliter

Above 20 million per microliter

Correct! Wrong!

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.

80 million per milliliter

83 million per milliliter

86 million per milliliter

169 million per microliter

Correct! Wrong!

Using the above information, calculate the sperm concentration when 80 sperm are counted in 1 WBC square and 86 sperm are counted in another WBC square.

83 million per milliliter

166 million per ejaculate

16.6 million per milliliter

50 million per ejaculate

Correct! Wrong!

The primary reason to dilute a semen specimen before performing a sperm concentration is to:

Immobilize the sperm

Facilitate the chamber count

Decrease the viscosity

Stain the sperm

Correct! Wrong!

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:

Specimen should be rediluted and counted

Sperm count is 75 million per milliliter

Sperm count is greater than 5 million per milliliter

Sperm concentation is abnormal

Correct! Wrong!

Sperm motility evaluations are performed:

Immediately after the specimen is collected

Within 1–2 hours of collection

After 3 hours of incubation

At 6-hour intervals for one day

Correct! Wrong!

Sperm motility is evaluated on the basis of:

Speed

Direction

Tail movement

Both A and B

Correct! Wrong!

The percentage of sperm showing average motility that is considered normal is:

25%

50%

60%

75%

Correct! Wrong!

All of the following are grading criteria for sperm motility except:

Rapid straight-line movement

Rapid lateral movement

No forward progression

No movement

Correct! Wrong!

The purpose of the acrosomal cap is:

Ovum penetration

Protection of the nucleus

Energy for tail movement

Protection of the neckpiece

Correct! Wrong!

The sperm part containing a mitochondrial sheath is the:

Head

Neckpiece

Midpiece

Tail

Correct! Wrong!

All of the following are associated with sperm motility except the:

Head

Neckpiece

Midpiece

Tail

Correct! Wrong!

The morphologic shape of a normal sperm head is:

Round

Tapered

Oval

Amorphous

Correct! Wrong!

Normal sperm morphology when using the WHO criteria is:

30% normal forms

15% abnormal forms

15% normal forms

Correct! Wrong!

Additional parameters measured by Kruger strict morphology include all of the following except:

Viability

Presence of vacuoles

Acrosome size

Tail length

Correct! Wrong!

Round cells that are of concern and may be included in sperm counts and morphology analysis are:

Leukocytes

Spermatids

RBCs

Both A and B

Correct! Wrong!

If 5 round cells per 100 sperm are counted in a sperm morphology smear and the sperm concentation is 30 million, the concentraton of round cells is:

150,000

1.5 million

300,000

15 million

Correct! Wrong!

Following an abnormal sperm motility test with a normal sperm count, what additional test might be ordered?

Fructose level

Zinc level

Mar test

Eosin-nigrosin stain

Correct! Wrong!

Follow-up testing for a low sperm concentration would include testing for:

Antisperm antibodies

Seminal fluid fructose

Sperm viability

Prostatic acid phosphatase

Correct! Wrong!

The immunobead test for antisperm antibodies:

Detects the presence of male antibodies

Determines the presence of IgG, IgM, and IgA antibodies

Determines the location of antisperm antibodies

All of the above

Correct! Wrong!

Measurement of -glucosidase is performed to detect a disorder of the:

Seminiferous tubules

Epididymis

Prostate gland

Bulbourethral glands

Correct! Wrong!

A specimen delivered to the laboratory with a request for prostatic acid phosphatase and glycoprotein p30 was collected to determine:

Prostatic infection

Presence of antisperm antibodies

A possible rape

Successful vasectomy

Correct! Wrong!

Following a negative postvasectomy wet preparation, the specimen should be:

Centrifuged and reexamined

Stained and reexamined

Reported as no sperm seen

Both A and B

Correct! Wrong!

Standardization of procedures and reference values for semen analysis is primarily provided by the:

Manufacturers of instrumentation

WHO

Manufacturers of control samples

Clinical laboratory improvement amendments

Correct! Wrong!

The quizzes about Semen (33 tests)

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The quizzes about Semen (33 tests)

Maturation of spermatozoa takes place in the:

Enzymes for the coagulation and liquefaction of semen are produced by the:

The major component of seminal fluid is:

If the first portion of a semen specimen is not collected, the semen analysis will have an abnormal:

Failure of laboratory personnel to document the time a semen sample is collected primarily affects the interpretation of semen:

Liquefaction of a semen specimen should take place within:

A semen specimen delivered to the laboratory in a condom has a normal sperm count and markedly decreased sperm motility. This is indicative of:

An increased semen pH may be caused by:

Proteolytic enzymes may be added to semen specimens to:

The normal sperm concentration is:

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.

Using the above information, calculate the sperm concentration when 80 sperm are counted in 1 WBC square and 86 sperm are counted in another WBC square.

The primary reason to dilute a semen specimen before performing a sperm concentration is to:

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:

Sperm motility evaluations are performed:

Sperm motility is evaluated on the basis of:

The percentage of sperm showing average motility that is considered normal is:

All of the following are grading criteria for sperm motility except:

The purpose of the acrosomal cap is:

The sperm part containing a mitochondrial sheath is the:

All of the following are associated with sperm motility except the:

The morphologic shape of a normal sperm head is:

Normal sperm morphology when using the WHO criteria is:

Additional parameters measured by Kruger strict morphology include all of the following except:

Round cells that are of concern and may be included in sperm counts and morphology analysis are:

If 5 round cells per 100 sperm are counted in a sperm morphology smear and the sperm concentation is 30 million, the concentraton of round cells is:

Following an abnormal sperm motility test with a normal sperm count, what additional test might be ordered?

Follow-up testing for a low sperm concentration would include testing for:

The immunobead test for antisperm antibodies:

Measurement of -glucosidase is performed to detect a disorder of the:

A specimen delivered to the laboratory with a request for prostatic acid phosphatase and glycoprotein p30 was collected to determine:

Following a negative postvasectomy wet preparation, the specimen should be:

Standardization of procedures and reference values for semen analysis is primarily provided by the:

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