Test Bank for Hematology in Practice, 4th Edition by Betty Ciesla
Chapter 1. Introduction to Hematology and Basic Laboratory Practice
Multiple Choice
1. Finding the feathered edge is best achieved using:
A. The 10× objective
B. The 40× objective
C. The 100× objective
D. The naked eye
ANS: A
OBJ: 1.3
2. A blurry image when using a 40× objective may be resolved by:
A. Opening up the diaphragm for maximum light
B. Checking the 40× objective for oil and cleaning if needed
C. Replacing with a new slide
D. Working exclusively with the 10× objective
ANS: B
OBJ: 1.4
3. Which of the following behaviors is a violation of standard precautions?
A. Handwashing after glove removal
B. Use of impermeable laboratory gowns
C. Use of goggles and face shields
D. Applying cosmetics in the laboratory area
ANS: D
OBJ: 1.5
4. The role of calibrators, standards, and quality control materials is to:
A. Define analyte values for instruments
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,B. Substitute for patient results
C. Prove the accuracy of laboratory analysis
D. Generate reference intervals
ANS: A
OBJ: 1.7
5. Which of the following is involved in the study of hematology and used to determine sickness
and health?
A. Quantity of cells
B. Cellular structure
C. Cellular function
D. All of the above
ANS: D
OBJ: 1.1
6. Proper mixing of samples and timely delivery of samples to the laboratory are both examples
of:
A. Delta checks
B. Postanalytic variables
C. Preanalytic variables
D. Reflex testing
ANS: C
OBJ: 1.8
7. A cause of a delta check that would not be considered an error would be:
A. A misidentified patient sample
B. Miscalibration of an instrument
C. An incorrect testing procedure
D. Changes in a patient’s health status
ANS: D
OBJ: 1.8
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,8. Which of the following is the definition of a reference interval?
A. A range of values considered acceptable when running quality controls
B. Materials analyzed concurrently with unknown samples
C. Typical analyte values seen in specific patient populations
D. A series of results on the same sample with matching values
ANS: C
OBJ: 1.8
9. Which of the following is not considered a postanalytic variable?
A. Results that trigger delta checks
B. Collection of specimens with appropriate anticoagulants
C. Initiation of reflex testing
D. Calling critical results
ANS: B
OBJ: 1.8
10. Error analysis, standard protocols, and turnaround time are all part of the:
A. Quality assurance system
B. Quality control program
C. Reference standards
D. Delta check protocol
ANS: A
OBJ: 1.7
11. The average of a group of data points is defined as the:
A. Mean
B. Mode
C. Median
D. Modicum
ANS: A
OBJ: 1.7
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, 12. Safety training is part of new employee training in health care and includes:
A. Biological hazards
B. Chemical hazards
C. Environmental hazards
D. All of the above
ANS: D
OBJ: 1.6
13. When viewing a slide with the 40´ objective lens, the total magnification being used is:
A. 10´
B. 40´
C. 100´
D. 400´
ANS: B
OBJ: 1.3
14. Reflex testing is used in the hematology laboratory to:
A. Compare past patient results with the current result
B. Immediately order additional testing to verify abnormal results
C. Establish a target range for a specific population
D. Prove that instruments are generating accurate results
ANS: B
OBJ: 1.8
15. When handwashing after a patient contact, the soap application process should last at least:
A. 5 seconds
B. 15 seconds
C. 20 seconds
D. 30 seconds
ANS: B
OBJ: 1.6
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Chapter 1. Introduction to Hematology and Basic Laboratory Practice
Multiple Choice
1. Finding the feathered edge is best achieved using:
A. The 10× objective
B. The 40× objective
C. The 100× objective
D. The naked eye
ANS: A
OBJ: 1.3
2. A blurry image when using a 40× objective may be resolved by:
A. Opening up the diaphragm for maximum light
B. Checking the 40× objective for oil and cleaning if needed
C. Replacing with a new slide
D. Working exclusively with the 10× objective
ANS: B
OBJ: 1.4
3. Which of the following behaviors is a violation of standard precautions?
A. Handwashing after glove removal
B. Use of impermeable laboratory gowns
C. Use of goggles and face shields
D. Applying cosmetics in the laboratory area
ANS: D
OBJ: 1.5
4. The role of calibrators, standards, and quality control materials is to:
A. Define analyte values for instruments
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is
,B. Substitute for patient results
C. Prove the accuracy of laboratory analysis
D. Generate reference intervals
ANS: A
OBJ: 1.7
5. Which of the following is involved in the study of hematology and used to determine sickness
and health?
A. Quantity of cells
B. Cellular structure
C. Cellular function
D. All of the above
ANS: D
OBJ: 1.1
6. Proper mixing of samples and timely delivery of samples to the laboratory are both examples
of:
A. Delta checks
B. Postanalytic variables
C. Preanalytic variables
D. Reflex testing
ANS: C
OBJ: 1.8
7. A cause of a delta check that would not be considered an error would be:
A. A misidentified patient sample
B. Miscalibration of an instrument
C. An incorrect testing procedure
D. Changes in a patient’s health status
ANS: D
OBJ: 1.8
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,8. Which of the following is the definition of a reference interval?
A. A range of values considered acceptable when running quality controls
B. Materials analyzed concurrently with unknown samples
C. Typical analyte values seen in specific patient populations
D. A series of results on the same sample with matching values
ANS: C
OBJ: 1.8
9. Which of the following is not considered a postanalytic variable?
A. Results that trigger delta checks
B. Collection of specimens with appropriate anticoagulants
C. Initiation of reflex testing
D. Calling critical results
ANS: B
OBJ: 1.8
10. Error analysis, standard protocols, and turnaround time are all part of the:
A. Quality assurance system
B. Quality control program
C. Reference standards
D. Delta check protocol
ANS: A
OBJ: 1.7
11. The average of a group of data points is defined as the:
A. Mean
B. Mode
C. Median
D. Modicum
ANS: A
OBJ: 1.7
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, 12. Safety training is part of new employee training in health care and includes:
A. Biological hazards
B. Chemical hazards
C. Environmental hazards
D. All of the above
ANS: D
OBJ: 1.6
13. When viewing a slide with the 40´ objective lens, the total magnification being used is:
A. 10´
B. 40´
C. 100´
D. 400´
ANS: B
OBJ: 1.3
14. Reflex testing is used in the hematology laboratory to:
A. Compare past patient results with the current result
B. Immediately order additional testing to verify abnormal results
C. Establish a target range for a specific population
D. Prove that instruments are generating accurate results
ANS: B
OBJ: 1.8
15. When handwashing after a patient contact, the soap application process should last at least:
A. 5 seconds
B. 15 seconds
C. 20 seconds
D. 30 seconds
ANS: B
OBJ: 1.6
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