, Hematology in Practice 3e Betty Ciesla (Teast Bank) jr jr jr jr jr jr jr
Chapter 1. Introduction to Hematology and Basic Laboratory Practice
jr jr jr jr jr jr jr jr
Multiple Choice jr
1. Tube length when referring to the microscope is the:
jr jr jr jr jr jr jr jr
A. Resolution power of the objective jr jr jr jr
B. Distance from the eyepiece to the objective jr jr jr jr jr jr
C. Numerical aperture jr
D. Magnitude of the image on the stage jr jr jr jr jr jr
ANS: B jr
OBJ:
jr
1.3
jr
2. What is the most useful corrective action for the microscope when fine details cannot
jr jr jr jr jr jr jr jr jr jr jr jr jr
be visualized in immature cells?
jr jr jr jr jr
A. Open up the diaphragm for maximum light.
jr jr jr jr jr jr
B. Wipe off lenses with lens cleaner.
jr jr jr jr jr
C. Get a new slide.
jr jr jr
D. Move to a lower power. jr jr jr jr
ANS: A jr
OBJ:
jr
1.4
jr
3. Which of the following behaviors is a violation of standard precautions?
jr jr jr jr jr jr jr jr jr jr
A. Hand washing after glove removal
jr jr jr jr
B. Use of impermeable laboratory gowns
jr jr jr jr
C. Use of goggles and face shields
jr jr jr jr jr
D. Placing laboratory notebooks on laboratory work area
jr jr jr jr jr jr
ANS: D jr
OBJ:
jr
1.5
jr
4. Standards and calibrators differ from control materials because:
jr jr jr jr jr jr jr
,A. An exact amount of analyte is present in a standard or calibrator
jr jr jr jr jr jr jr jr jr jr jr
B. A variable amount of analyte is present depending on patient samples
jr jr jr jr jr jr jr jr jr jr
C. Standards only need to be within a target range
jr jr jr jr jr jr jr jr
, D. Standards are run to the best estimate of the known value
jr jr jr jr jr jr jr jr jr jr
ANS: A jr
OBJ:
jr
1.7
jr
5. Which of the following is involved in the study of hematology and used to determine
jr jr jr jr jr jr jr jr jr jr jr jr jr jr
sickness and health?
jr jr jr
A. Quantity of cells jr jr
B. Cellular structure jr
C. Cellular function jr
D. All of the above
jr jr jr
ANS: D jr
OBJ:
jr
1.1
jr
6. Proper mixing of samples and timely delivery of samples to the laboratory are both
jr jr jr jr jr jr jr jr jr jr jr jr jr
examples of:
jr jr
A. Delta checks jr
B. Postanalytic variables jr
C. Preanalytic variables jr
D. Reflex testing jr
ANS: C jr
OBJ:
jr
1.8
jr
7. A delta check is a historical reference on samples run in the laboratories. Once a sample
jr jr jr jr jr jr jr jr jr jr jr jr jr jr jr
fails a delta check, the most obvious corrective action is to:
jr jr jr jr jr jr jr jr jr jr jr
A. Verify the identification of the patient sample
jr jr jr jr jr jr
B. Reestablish the parameters of the delta check jr jr jr jr jr jr
C. Perform reflex testing jr jr
D. Perform a manual method jr jr jr
jr ANS: A jr
8. Which of the following is the definition of a reference interval?
jr jr jr jr jr jr jr jr jr jr
Chapter 1. Introduction to Hematology and Basic Laboratory Practice
jr jr jr jr jr jr jr jr
Multiple Choice jr
1. Tube length when referring to the microscope is the:
jr jr jr jr jr jr jr jr
A. Resolution power of the objective jr jr jr jr
B. Distance from the eyepiece to the objective jr jr jr jr jr jr
C. Numerical aperture jr
D. Magnitude of the image on the stage jr jr jr jr jr jr
ANS: B jr
OBJ:
jr
1.3
jr
2. What is the most useful corrective action for the microscope when fine details cannot
jr jr jr jr jr jr jr jr jr jr jr jr jr
be visualized in immature cells?
jr jr jr jr jr
A. Open up the diaphragm for maximum light.
jr jr jr jr jr jr
B. Wipe off lenses with lens cleaner.
jr jr jr jr jr
C. Get a new slide.
jr jr jr
D. Move to a lower power. jr jr jr jr
ANS: A jr
OBJ:
jr
1.4
jr
3. Which of the following behaviors is a violation of standard precautions?
jr jr jr jr jr jr jr jr jr jr
A. Hand washing after glove removal
jr jr jr jr
B. Use of impermeable laboratory gowns
jr jr jr jr
C. Use of goggles and face shields
jr jr jr jr jr
D. Placing laboratory notebooks on laboratory work area
jr jr jr jr jr jr
ANS: D jr
OBJ:
jr
1.5
jr
4. Standards and calibrators differ from control materials because:
jr jr jr jr jr jr jr
,A. An exact amount of analyte is present in a standard or calibrator
jr jr jr jr jr jr jr jr jr jr jr
B. A variable amount of analyte is present depending on patient samples
jr jr jr jr jr jr jr jr jr jr
C. Standards only need to be within a target range
jr jr jr jr jr jr jr jr
, D. Standards are run to the best estimate of the known value
jr jr jr jr jr jr jr jr jr jr
ANS: A jr
OBJ:
jr
1.7
jr
5. Which of the following is involved in the study of hematology and used to determine
jr jr jr jr jr jr jr jr jr jr jr jr jr jr
sickness and health?
jr jr jr
A. Quantity of cells jr jr
B. Cellular structure jr
C. Cellular function jr
D. All of the above
jr jr jr
ANS: D jr
OBJ:
jr
1.1
jr
6. Proper mixing of samples and timely delivery of samples to the laboratory are both
jr jr jr jr jr jr jr jr jr jr jr jr jr
examples of:
jr jr
A. Delta checks jr
B. Postanalytic variables jr
C. Preanalytic variables jr
D. Reflex testing jr
ANS: C jr
OBJ:
jr
1.8
jr
7. A delta check is a historical reference on samples run in the laboratories. Once a sample
jr jr jr jr jr jr jr jr jr jr jr jr jr jr jr
fails a delta check, the most obvious corrective action is to:
jr jr jr jr jr jr jr jr jr jr jr
A. Verify the identification of the patient sample
jr jr jr jr jr jr
B. Reestablish the parameters of the delta check jr jr jr jr jr jr
C. Perform reflex testing jr jr
D. Perform a manual method jr jr jr
jr ANS: A jr
8. Which of the following is the definition of a reference interval?
jr jr jr jr jr jr jr jr jr jr
