Question 1

When viewing a slide with the 50$\times$ objective lens, the total magnification being used is:

Accepted Answer

A) 50$\times$ 
B) 100$\times$ 
C) 500$\times$ 
D) 5000$\times$ 
A) 50$\times$ 
B) 100$\times$ 
C) 500$\times$ 
D) 5000$\times$ C

Question 2

A normal distribution curve will have 99.7% of the measured values fall within 2 SDs.

Accepted Answer

A) True 
 B)False  False

Question 3

Which of the following represents an example of a safety violation in the laboratory?

Accepted Answer

A) Application of cosmetics 
B) Mouth pipetting 
C) Consuming bottled water 
D) All the above 
A) Application of cosmetics 
B) Mouth pipetting 
C) Consuming bottled water 
D) All the above D

Question 4

Error analysis, standard protocols, and turnaround time are all part of the:

Accepted Answer

A) Quality assurance system 
B) Quality control program 
C) Reference standards 
D) Delta check protocol 
A) Quality assurance system 
B) Quality control program 
C) Reference standards 
D) Delta check protocol

Question 5

The average of a group of data points is defined as the:

Accepted Answer

A) Mean 
B) Mode 
C) Median 
D) Modicum 
A) Mean 
B) Mode 
C) Median 
D) Modicum

Question 6

Which of the following is not considered a postanalytic variable?

Accepted Answer

A) Delta checks 
B) Proper anticoagulant used 
C) Specimen checked for clots 
D) Calling critical results 
A) Delta checks 
B) Proper anticoagulant used 
C) Specimen checked for clots 
D) Calling critical results

Question 7

Standards and calibrators differ from control materials because:

Accepted Answer

A) An exact amount of analyte is present in a standard or calibrator 
B) A variable amount of analyte is present depending on patient samples 
C) Standards only need to be within a target range 
D) Standards are run to the best estimate of the known value 
A) An exact amount of analyte is present in a standard or calibrator 
B) A variable amount of analyte is present depending on patient samples 
C) Standards only need to be within a target range 
D) Standards are run to the best estimate of the known value

Question 8

Delta checks are used in the hematology laboratory to:

Accepted Answer

A) Compare past patient results with the current result 
B) Verify control accuracy 
C) Establish a target range 
D) Establish reference ranges for a particular analyte 
A) Compare past patient results with the current result 
B) Verify control accuracy 
C) Establish a target range 
D) Establish reference ranges for a particular analyte

Question 9

When hand washing after a patient contact, the soap application process should last at least:

Accepted Answer

A) 5 seconds 
B) 15 seconds 
C) 20 seconds 
D) 30 seconds 
A) 5 seconds 
B) 15 seconds 
C) 20 seconds 
D) 30 seconds

Question 10

Safety training is part of new employee training in health care and includes:

Accepted Answer

A) Biological hazards 
B) Chemical hazards 
C) Environmental hazards 
D) All of the above 
A) Biological hazards 
B) Chemical hazards 
C) Environmental hazards 
D) All of the above

Question 11

A delta check is a historical reference on samples run in the laboratories.Once a sample fails a delta check, the most obvious corrective action is to:

Accepted Answer

A) Verify the identification of the patient sample 
B) Reestablish the parameters of the delta check 
C) Perform reflex testing 
D) Perform a manual method 
A) Verify the identification of the patient sample 
B) Reestablish the parameters of the delta check 
C) Perform reflex testing 
D) Perform a manual method

Question 12

Which of the following is involved in the study of hematology and used to determine sickness and health?

Accepted Answer

A) Quantity of cells 
B) Cellular structure 
C) Cellular function 
D) All of the above 
A) Quantity of cells 
B) Cellular structure 
C) Cellular function 
D) All of the above

Question 13

Which of the following behaviors is a violation of standard precautions?

Accepted Answer

A) Hand washing after glove removal 
B) Use of impermeable laboratory gowns 
C) Use of goggles and face shields 
D) Placing laboratory notebooks on laboratory work area 
A) Hand washing after glove removal 
B) Use of impermeable laboratory gowns 
C) Use of goggles and face shields 
D) Placing laboratory notebooks on laboratory work area

Question 14

Tube length when referring to the microscope is the:

Accepted Answer

A) Resolution power of the objective 
B) Distance from the eyepiece to the objective 
C) Numerical aperture 
D) Magnitude of the image on the stage 
A) Resolution power of the objective 
B) Distance from the eyepiece to the objective 
C) Numerical aperture 
D) Magnitude of the image on the stage

Question 15

What is the most useful corrective action for the microscope when fine details cannot be visualized in immature cells?

Accepted Answer

A) Open up the diaphragm for maximum light. 
B) Wipe off lenses with lens cleaner. 
C) Get a new slide. 
D) Move to a lower power. 
A) Open up the diaphragm for maximum light. 
B) Wipe off lenses with lens cleaner. 
C) Get a new slide. 
D) Move to a lower power.

Question 16

Proper mixing of samples and timely delivery of samples to the laboratory are both examples of:

Accepted Answer

A) Delta checks 
B) Postanalytic variables 
C) Preanalytic variables 
D) Reflex testing 
A) Delta checks 
B) Postanalytic variables 
C) Preanalytic variables 
D) Reflex testing

Question 17

Accuracy is a measurement of the true value of an analyte.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is the definition of a reference interval?

Accepted Answer

A) A solution of a known amount of analyte 
B) Materials analyzed concurrently with unknown samples 
C) Values established for a particular analyte, given a method, instrument, or patient population 
D) Validation techniques on flagged samples 
A) A solution of a known amount of analyte 
B) Materials analyzed concurrently with unknown samples 
C) Values established for a particular analyte, given a method, instrument, or patient population 
D) Validation techniques on flagged samples

Question 19

Standard deviation is a measurement of precision.

Accepted Answer

A) True 
 B)False

When viewing a slide with the 50 $\times$ objective lens, the total magnification being used is:

A normal distribution curve will have 99.7% of the measured values fall within 2 SDs.

Which of the following represents an example of a safety violation in the laboratory?

Error analysis, standard protocols, and turnaround time are all part of the:

The average of a group of data points is defined as the:

Which of the following is not considered a postanalytic variable?

Standards and calibrators differ from control materials because:

Delta checks are used in the hematology laboratory to:

When hand washing after a patient contact, the soap application process should last at least:

Safety training is part of new employee training in health care and includes:

A delta check is a historical reference on samples run in the laboratories.Once a sample fails a delta check, the most obvious corrective action is to:

Which of the following is involved in the study of hematology and used to determine sickness and health?

Which of the following behaviors is a violation of standard precautions?

Tube length when referring to the microscope is the:

What is the most useful corrective action for the microscope when fine details cannot be visualized in immature cells?

Proper mixing of samples and timely delivery of samples to the laboratory are both examples of:

Accuracy is a measurement of the true value of an analyte.

Which of the following is the definition of a reference interval?

Standard deviation is a measurement of precision.

From Hematopoiesis to the Complete Blood Count

Blood Cell Production and Function and Relevant Red Cell Morphology

Hemoglobin Function and Principles of Hemolysis

The Microcytic Anemias

The Macrocytic Anemias

Normochromic Anemias: Biochemical and Membrane Disorders and Miscellaneous Red Cell Disorders

The Normochromic Anemias Due to Hemoglobinopathies

Leukopoiesis and Leukopoietic Function

Abnormalities of White Cells: Quantitative, Qualitative, and the Lipid Storage Diseases

Acute Leukemias

Myeloproliferative Neoplasms

Lymphoproliferative Disorders and Related Plasma Cell Disorders

The Myelodysplastic Syndromes

Overview of Hemostasis and Platelet Physiology

Quantitative and Qualitative Platelet Disorders

Defects of Plasma Clotting Factors

Fibrinogen, Thrombin, and the Fibrinolytic System

Introduction to Thrombosis and Anticoagulant Therapy

Hematology Automation and Flow Cell Cytometry

Filters

Exam 1: Introduction to Hematology and Basic Laboratory Practice

When viewing a slide with the 50 ×\times× objective lens, the total magnification being used is:

A normal distribution curve will have 99.7% of the measured values fall within 2 SDs.

Which of the following represents an example of a safety violation in the laboratory?

Error analysis, standard protocols, and turnaround time are all part of the:

The average of a group of data points is defined as the:

Which of the following is not considered a postanalytic variable?

Standards and calibrators differ from control materials because:

Delta checks are used in the hematology laboratory to:

When hand washing after a patient contact, the soap application process should last at least:

Safety training is part of new employee training in health care and includes:

A delta check is a historical reference on samples run in the laboratories.Once a sample fails a delta check, the most obvious corrective action is to:

Which of the following is involved in the study of hematology and used to determine sickness and health?

Which of the following behaviors is a violation of standard precautions?

Tube length when referring to the microscope is the:

What is the most useful corrective action for the microscope when fine details cannot be visualized in immature cells?

Proper mixing of samples and timely delivery of samples to the laboratory are both examples of:

Accuracy is a measurement of the true value of an analyte.

Which of the following is the definition of a reference interval?

Standard deviation is a measurement of precision.

From Hematopoiesis to the Complete Blood Count

Blood Cell Production and Function and Relevant Red Cell Morphology

Hemoglobin Function and Principles of Hemolysis

The Microcytic Anemias

The Macrocytic Anemias

Normochromic Anemias: Biochemical and Membrane Disorders and Miscellaneous Red Cell Disorders

The Normochromic Anemias Due to Hemoglobinopathies

Leukopoiesis and Leukopoietic Function

Abnormalities of White Cells: Quantitative, Qualitative, and the Lipid Storage Diseases

Acute Leukemias

Myeloproliferative Neoplasms

Lymphoproliferative Disorders and Related Plasma Cell Disorders

The Myelodysplastic Syndromes

Overview of Hemostasis and Platelet Physiology

Quantitative and Qualitative Platelet Disorders

Defects of Plasma Clotting Factors

Fibrinogen, Thrombin, and the Fibrinolytic System

Introduction to Thrombosis and Anticoagulant Therapy

Hematology Automation and Flow Cell Cytometry

Filters

When viewing a slide with the 50 $\times$ objective lens, the total magnification being used is: