Question 1

The anticoagulant of choice for cell counts is:

Accepted Answer

A)  lithium. 
B)  sodium citrate. 
C)  EDTA. 
D)  heparin. 
A)  lithium. 
B)  sodium citrate. 
C)  EDTA. 
D)  heparin.

Question 2

Match the adult mean reference value (%) with each of the leukocyte types.
-lymphocytes

Accepted Answer

A) 0.5 
B) 59 
C) 3 
D) 4-6 
E) 34 
A) 0.5 
B) 59 
C) 3 
D) 4-6 
E) 34

Question 3

An immature RBC that has just lost its nucleus is referred to as a:

Accepted Answer

A)  prorubricyte. 
B)  rubricyte. 
C)  metarubricyte. 
D)  reticulocyte. 
A)  prorubricyte. 
B)  rubricyte. 
C)  metarubricyte. 
D)  reticulocyte.

Question 4

The most important requirement for the diluting fluid used to determine a WBC count is the ability to:

Accepted Answer

A)  lyse cells. 
B)  allow cells of interest to fluoresce. 
C)  maintain cellular integrity. 
D)  do either a or b. 
A)  lyse cells. 
B)  allow cells of interest to fluoresce. 
C)  maintain cellular integrity. 
D)  do either a or b.

Question 5

The most popular anticoagulant used to prevent clotting in order to perform a complete blood count is:

Accepted Answer

A)  EDTA. 
B)  heparin. 
C)  sodium fluoride. 
D)  sodium citrate. 
A)  EDTA. 
B)  heparin. 
C)  sodium fluoride. 
D)  sodium citrate.

Question 6

Reticulocytes represent RBCs that:

Accepted Answer

A)  have lost their nuclei but not their cytoplasmic RNA. 
B)  are immature, nucleated RBCs. 
C)  are increased in untreated pernicious anemia. 
D)  have abnormal staining characteristics. 
A)  have lost their nuclei but not their cytoplasmic RNA. 
B)  are immature, nucleated RBCs. 
C)  are increased in untreated pernicious anemia. 
D)  have abnormal staining characteristics.

Question 7

If an excess of anticoagulant,for example,EDTA is present in a specimen for microhematocrit determinations,this error will cause ____ result.

Accepted Answer

A)  a falsely lower 
B)  no observable change in the 
C)  a falsely higher 
D)  no difference in the 
A)  a falsely lower 
B)  no observable change in the 
C)  a falsely higher 
D)  no difference in the

Question 8

Oxyhemoglobin contains ____ molecule(s)per hemoglobin molecule.

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  8 
A)  1 
B)  2 
C)  4 
D)  8

Question 9

Match the errors in staining with the appropriate description.
-pH of the staining system is too alkaline

Accepted Answer

A) if the pH of the staining system is too alkaline, the parts of the cells taking up basic dye will be overstained, giving an overall blue effect, with very dark blue to black nuclear chromatin and bluish RBCs 
B) parts of the cell taking up acidic dye will be overstained and will appear too red, while the parts of the cells taking up basic dye will appear pale 
C) an excessively blue appearance on gross examination 
D) improper washing (not washing enough to remove the metallic scum) 
A) if the pH of the staining system is too alkaline, the parts of the cells taking up basic dye will be overstained, giving an overall blue effect, with very dark blue to black nuclear chromatin and bluish RBCs 
B) parts of the cell taking up acidic dye will be overstained and will appear too red, while the parts of the cells taking up basic dye will appear pale 
C) an excessively blue appearance on gross examination 
D) improper washing (not washing enough to remove the metallic scum)

Question 10

Match the following categories of microscopic observations of RBCs with the appropriate example.
-alteration in RBC size

Accepted Answer

A) Howell-Jolly body 
B) schistocyte 
C) hypochromia 
D) macrocytes 
A) Howell-Jolly body 
B) schistocyte 
C) hypochromia 
D) macrocytes

Question 11

Match the cellular characteristic with the appropriate cell type.
-monocyte

Accepted Answer

A) usually the most numerous of the mature leukocytes (WBCs) 
B) dark-purple or black granules in the cytoplasm 
C) orange granules in the cytoplasm 
D) cytoplasm usually stains a light blue 
E) the largest mature WBC 
A) usually the most numerous of the mature leukocytes (WBCs) 
B) dark-purple or black granules in the cytoplasm 
C) orange granules in the cytoplasm 
D) cytoplasm usually stains a light blue 
E) the largest mature WBC

Question 12

When insufficient amounts of oxygen are present in the circulating blood,a patient's skin will appear:

Accepted Answer

A)  bright cherry red. 
B)  pale pink. 
C)  blue. 
D)  white. 
A)  bright cherry red. 
B)  pale pink. 
C)  blue. 
D)  white.

Question 13

Platelets release certain factors that are required for the formation of a blood clot.

Accepted Answer

A) True 
 B)False

Question 14

Blood cells are initially formed in the ____ of the embryo.

Accepted Answer

A)  yolk sac 
B)  liver 
C)  spleen 
D)  bone marrow 
A)  yolk sac 
B)  liver 
C)  spleen 
D)  bone marrow

Question 15

An initial evaluation of a blood smear should include):

Accepted Answer

A)  an evaluation of the overall quality of the blood film. 
B)  an estimate of the red and white (leukocyte) blood cell counts. 
C)  a scan of the blood film for abnormal cells and clumps of platelets. 
D)  all of the above. 
A)  an evaluation of the overall quality of the blood film. 
B)  an estimate of the red and white (leukocyte) blood cell counts. 
C)  a scan of the blood film for abnormal cells and clumps of platelets. 
D)  all of the above.

Question 16

Match the following categories of microscopic observations of RBCs with the appropriate example.
-alteration in RBC shape

Accepted Answer

A) Howell-Jolly body 
B) schistocyte 
C) hypochromia 
D) macrocytes 
A) Howell-Jolly body 
B) schistocyte 
C) hypochromia 
D) macrocytes

Question 17

The stage of erythrocyte (RBC)development during which remnants of RNA can be seen is:

Accepted Answer

A)  polychromatophilic normoblast (rubricyte). 
B)  orthochromic normoblast (metarubricyte). 
C)  reticulocyte (diffusely basophilic erythrocyte). 
D)  mature erythrocyte. 
A)  polychromatophilic normoblast (rubricyte). 
B)  orthochromic normoblast (metarubricyte). 
C)  reticulocyte (diffusely basophilic erythrocyte). 
D)  mature erythrocyte.

Question 18

Carboxyhemoglobin:

Accepted Answer

A)  cannot bind to oxygen. 
B)  cannot carry oxygen to tissues. 
C)  will result in carbon monoxide poisoning. 
D)  All of the above are correct.. 
A)  cannot bind to oxygen. 
B)  cannot carry oxygen to tissues. 
C)  will result in carbon monoxide poisoning. 
D)  All of the above are correct..

Question 19

Match the RBC indices term with the appropriate equation.
-mean corpuscular hemoglobin concentration

Accepted Answer

A) $ (f L)=\frac{\operatorname{Hct} \times 10}{\operatorname{RBC}} $ 
B) $ (p g)=\frac{\mathrm{Hb} \times 10}{\mathrm{RBC}} $ 
C) $ (g / d L)=\frac{H b}{H c t} \times 100 $ 
A) $ (f L)=\frac{\operatorname{Hct} \times 10}{\operatorname{RBC}} $ 
B) $ (p g)=\frac{\mathrm{Hb} \times 10}{\mathrm{RBC}} $ 
C) $ (g / d L)=\frac{H b}{H c t} \times 100 $

Question 20

Match the following terms with an appropriate definition.
-hypochromia

Accepted Answer

A) variation in cell size 
B) increased central pallor in RBCs 
C) faint blue-colored RBCs 
A) variation in cell size 
B) increased central pallor in RBCs 
C) faint blue-colored RBCs

The anticoagulant of choice for cell counts is:

Match the adult mean reference value (%) with each of the leukocyte types. -lymphocytes

An immature RBC that has just lost its nucleus is referred to as a:

The most important requirement for the diluting fluid used to determine a WBC count is the ability to:

The most popular anticoagulant used to prevent clotting in order to perform a complete blood count is:

Reticulocytes represent RBCs that:

If an excess of anticoagulant,for example,EDTA is present in a specimen for microhematocrit determinations,this error will cause ____ result.

Oxyhemoglobin contains ____ molecule(s)per hemoglobin molecule.

Match the errors in staining with the appropriate description. -pH of the staining system is too alkaline

Match the following categories of microscopic observations of RBCs with the appropriate example. -alteration in RBC size

Match the cellular characteristic with the appropriate cell type. -monocyte

When insufficient amounts of oxygen are present in the circulating blood,a patient's skin will appear:

Platelets release certain factors that are required for the formation of a blood clot.

Blood cells are initially formed in the ____ of the embryo.

An initial evaluation of a blood smear should include):

Match the following categories of microscopic observations of RBCs with the appropriate example. -alteration in RBC shape

The stage of erythrocyte (RBC)development during which remnants of RNA can be seen is:

Carboxyhemoglobin:

Match the RBC indices term with the appropriate equation. -mean corpuscular hemoglobin concentration

Match the following terms with an appropriate definition. -hypochromia

Fundamentals of the Clinical Laboratory

Safety in the Clinical Laboratory

Quality Assessment and Quality Control in the Clinical Laboratory

Phlebotomy: Collecting and Processing Blood

The Microscope

Systems of Measurement, laboratory Equipment, and Reagents

Laboratory Mathematics and Solution Preparation

Basic and New Techniques in the Clinical Laboratory

Delivery of Laboratory Testing From Point of Care to Total Automation

Introduction to Clinical Chemistry

Introduction to Hemostasis

Renal Physiology and Urinalysis

Examination of Body Fluids and Miscellaneous Specimens

Introduction to Microbiology

Immunology and Serology

Immunohematology and Transfusion Medicine

Filters

Exam 11: Principles and Practice of Clinical Hematology

The anticoagulant of choice for cell counts is:

Match the adult mean reference value (%) with each of the leukocyte types. -lymphocytes

An immature RBC that has just lost its nucleus is referred to as a:

The most important requirement for the diluting fluid used to determine a WBC count is the ability to:

The most popular anticoagulant used to prevent clotting in order to perform a complete blood count is:

Reticulocytes represent RBCs that:

If an excess of anticoagulant,for example,EDTA is present in a specimen for microhematocrit determinations,this error will cause ____ result.

Oxyhemoglobin contains ____ molecule(s)per hemoglobin molecule.

Match the errors in staining with the appropriate description. -pH of the staining system is too alkaline

Match the following categories of microscopic observations of RBCs with the appropriate example. -alteration in RBC size

Match the cellular characteristic with the appropriate cell type. -monocyte

When insufficient amounts of oxygen are present in the circulating blood,a patient's skin will appear:

Platelets release certain factors that are required for the formation of a blood clot.

Blood cells are initially formed in the ____ of the embryo.

An initial evaluation of a blood smear should include):

Match the following categories of microscopic observations of RBCs with the appropriate example. -alteration in RBC shape

The stage of erythrocyte (RBC)development during which remnants of RNA can be seen is:

Carboxyhemoglobin:

Match the RBC indices term with the appropriate equation. -mean corpuscular hemoglobin concentration

Match the following terms with an appropriate definition. -hypochromia

Fundamentals of the Clinical Laboratory

Safety in the Clinical Laboratory

Quality Assessment and Quality Control in the Clinical Laboratory

Phlebotomy: Collecting and Processing Blood

The Microscope

Systems of Measurement, laboratory Equipment, and Reagents

Laboratory Mathematics and Solution Preparation

Basic and New Techniques in the Clinical Laboratory

Delivery of Laboratory Testing From Point of Care to Total Automation

Introduction to Clinical Chemistry

Introduction to Hemostasis

Renal Physiology and Urinalysis

Examination of Body Fluids and Miscellaneous Specimens

Introduction to Microbiology

Immunology and Serology

Immunohematology and Transfusion Medicine

Filters