Question 1
Standard precautions apply to all of the following except:
A. Blood
B. Cerebrospinal fluid
C. Semen
D. Concentrated acids
CORRECT ANSWER
D. Concentrated acids
Question 2
The most important practice in preventing the spread of disease is:
A. Wearing masks during patient contact
B. Proper hand washing
C. Wearing disposable laboratory coats
D. Identifying specimens from known or suspected HIV- and HBV-infected patients with a red
label
CORRECT ANSWER
B. Proper hand washing
Question 3
The appropriate dilution of bleach to use in laboratory disinfection is:
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@THE STUDY VAULT
,A. 1:2
B. 1:5
C. 1:10
D. 1:100
CORRECT ANSWER
D. 1:10
Question 4
How frequently should fire alarms and sprinkler systems be tested?
A. Weekly
B. Monthly
C. Quarterly
D. Annually
CORRECT ANSWER
C. Quarterly
Question 5
Where should alcohol and other flammable chemicals be stored?
A. In an approved safety can or storage cabinet away from heat sources
B. Under a hood and arranged alphabetically for ease of identification in an emergency
C. In a refrigerator at 2 C to 8 C to reduce volatilization
D. On a low shelf in an area protected from light
CORRECT ANSWER
A. In an approved safety can or storage cabinet away from heat sources
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,Question 6
The most frequent cause of needle punctures is:
A. Patient movement during venipuncture
B. Improper disposal of phlebotomy equipment
C. Inattention during removal of needle after venipuncture
D. Failure to attach needle firmly to syringe or tube holder
CORRECT ANSWER
B. Improper disposal of phlebotomy equipment
Question 7
What class fire extinguisher would be appropriate to use on a fire in a chemical cabinet?
A. Class A
B. Class B
C. Class C
D. Class D
CORRECT ANSWER
B. Class B
Question 8
Select the needle most commonly used in standard venipuncture in an adult:
A. One inch, 18 gauge
B. One inch, 21 gauge
C. One-half inch, 23 gauge
D. One-half inch, 25 gauge
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@THE STUDY VAULT
, CORRECT ANSWER
B. One inch, 21 gauge
Question 9
The process of formation and development of blood cells is termed:
A. Hematopoiesis
B. Hematemesis
C. Hematocytometry
D. Hematorrhea
CORRECT ANSWER
A. Hematopoiesis
Question 10
During the second trimester of fetal development, the primary site of blood cell
production is:
A. Bone marrow
B. Spleen
C. Lymph nodes
D. Liver
CORRECT ANSWER
D. Liver
Question 11
Which of the following organs is responsible for the maturation of T lymphocytes and
regulation of their expression of CD4 and CD8?
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@THE STUDY VAULT
Standard precautions apply to all of the following except:
A. Blood
B. Cerebrospinal fluid
C. Semen
D. Concentrated acids
CORRECT ANSWER
D. Concentrated acids
Question 2
The most important practice in preventing the spread of disease is:
A. Wearing masks during patient contact
B. Proper hand washing
C. Wearing disposable laboratory coats
D. Identifying specimens from known or suspected HIV- and HBV-infected patients with a red
label
CORRECT ANSWER
B. Proper hand washing
Question 3
The appropriate dilution of bleach to use in laboratory disinfection is:
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@THE STUDY VAULT
,A. 1:2
B. 1:5
C. 1:10
D. 1:100
CORRECT ANSWER
D. 1:10
Question 4
How frequently should fire alarms and sprinkler systems be tested?
A. Weekly
B. Monthly
C. Quarterly
D. Annually
CORRECT ANSWER
C. Quarterly
Question 5
Where should alcohol and other flammable chemicals be stored?
A. In an approved safety can or storage cabinet away from heat sources
B. Under a hood and arranged alphabetically for ease of identification in an emergency
C. In a refrigerator at 2 C to 8 C to reduce volatilization
D. On a low shelf in an area protected from light
CORRECT ANSWER
A. In an approved safety can or storage cabinet away from heat sources
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,Question 6
The most frequent cause of needle punctures is:
A. Patient movement during venipuncture
B. Improper disposal of phlebotomy equipment
C. Inattention during removal of needle after venipuncture
D. Failure to attach needle firmly to syringe or tube holder
CORRECT ANSWER
B. Improper disposal of phlebotomy equipment
Question 7
What class fire extinguisher would be appropriate to use on a fire in a chemical cabinet?
A. Class A
B. Class B
C. Class C
D. Class D
CORRECT ANSWER
B. Class B
Question 8
Select the needle most commonly used in standard venipuncture in an adult:
A. One inch, 18 gauge
B. One inch, 21 gauge
C. One-half inch, 23 gauge
D. One-half inch, 25 gauge
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@THE STUDY VAULT
, CORRECT ANSWER
B. One inch, 21 gauge
Question 9
The process of formation and development of blood cells is termed:
A. Hematopoiesis
B. Hematemesis
C. Hematocytometry
D. Hematorrhea
CORRECT ANSWER
A. Hematopoiesis
Question 10
During the second trimester of fetal development, the primary site of blood cell
production is:
A. Bone marrow
B. Spleen
C. Lymph nodes
D. Liver
CORRECT ANSWER
D. Liver
Question 11
Which of the following organs is responsible for the maturation of T lymphocytes and
regulation of their expression of CD4 and CD8?
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@THE STUDY VAULT
