Deck 40: Hematology

Question 1

Which of the following is the hormone required for the production of new red blood cells?

A)Hematopoietin
B)Erythropoietin  
C)Hemoglobin
D)Plasma

Answer 1

Erythropoietin  

Question 2

How can the WBC count be estimated when performing the microhematocrit test?

A)Cannot be estimated
B)Measured at the bottom of the tube  
C)By measuring buffy coat thickness
D)By the amount of plasma and platelets

Answer 2

By measuring buffy coat thickness

Question 3

Which of the following is the major component of the RBC that transports oxygen?

A)Serum
B)Hemoglobin  
C)Plasma
D)Protein

Answer 3

Hemoglobin  

Question 4

Which of the following best describes a hematocrit test?

A)Ratio of the volume of packed red blood cells  
B)Requires a large amount of blood  
C)Measures the total volume of WBCs  
D)Requires filling one capillary tube

Question 5

Which of the following statements is false about disease states and cell changes?

A)Appendicitis causes increased neutrophils. 
B)Viral infections are associated with increased red blood cells. 
C)Iron deficiency anemia shows hypochromic red blood cells. 
D)Infectious mononucleosis shows increased lymphocytes.

Question 6

What type of blood is used for the microhematocrit test?

A)Arterial
B)Capillary  
C)Capillary and arterial
D)None of the above

Question 7

When placing the sealed tubes into the microhematocrit centrifuge, what must be done before closing the lid?

A)Place the tubes in slots next to each other. 
B)Place the tubes opposite each other, balancing each other across the centrifuge. 
C)Determine the average values. 
D)Set the timer and adjust the speed.

Question 8

Which of the following is required for the synthesis of the heme portion of the hemoglobin molecule?

A)Calcium
B)Phosphorus  
C)Iron
D)Carbon dioxide

Question 9

Which of the following is the most common type of hemoglobin disease seen in ambulatory care?

A)Iron deficiency anemia
B)Sickle cell anemia  
C)Pernicious anemia
D)Hypovolemia

Question 10

Which of the following is NOT generally included in the complete blood count (CBC)?

A)Hemoglobin determination
B)Hematocrit determination  
C)Erythrocyte sedimentation rate
D)Red blood cell (RBC) count

Question 11

Which of the following is the normal range of values for hemoglobin of adult women?

A)9-14 g/dl
B)12-14 g/dl  
C)12-16 g/dl
D)13-18 g/dl

Question 12

Which of the following best defines hematology?

A)Study of blood chemistry
B)Study of blood proteins  
C)Study of blood plasma
D)Study of blood cells

Question 13

Platelets or thrombocytes are involved in doing what in the blood?

A)Fighting infection
B)Coagulation  
C)Carry's oxygen
D)All the above

Question 14

Leukocytes provide specific disease-fighting functions in the blood.Which one of the following is NOT one of them?

A)Coagulation
B)Phagocytosis  
C)Detoxification
D)Immune response

Question 15

Which of the following is the normal range of values for the hematocrit of the adult male?

A)36-46%
B)30-40%  
C)40-45%
D)40-55%

Question 16

Which of the following is a true statement regarding immunity?

A)Passively acquired immunity is through fighting off disease. 
B)Actively acquired immunity is through an injection. 
C)Immunity is always permanent. 
D)None of the above

Question 17

Which of the following is the reference range of a leukocyte count for adults?

A)4,500-11,000
B)5,000-12,000  
C)6,000-14,000
D)10,000-30,000

Question 18

WBCs are divided into two basic groups known as what?

A)Granulocytes and cytoplasm  
B)Polymorphonuclear and apolymorphonuclear  
C)Mononuclear and agranulocytes  
D)Granulocytes and agranulocytes

Question 19

Oxygenated hemoglobin is what color?

A)Dark red
B)Bright red  
C)Blue
D)Yellow

Question 20

When the "sed rate" increases, it detects what type of disease/condition?

A)Inflammatory disease
B)Acute stress  
C)Lupus
D)All the above

Question 21

Which of the following best describes erythrocyte indices?

A)Calculations that provide size and hemoglobin content of RBCs  
B)Provides information for hematocrit  
C)Allows for calculations of oxygen in hemoglobin  
D)Abbreviated MCV, MCA, and MCC

Question 22

Which of the following is the normal value for a platelet count?

A)20,000-50,000
B)50,000-100,000  
C)150,000-450,000
D)400,000-600,000

Question 23

Which of the following is the most numerous of the white blood cells?

A)Monocytes
B)Lymphocytes  
C)Neutrophils
D)Eosinophils

Question 24

Match the definitions with the appropriate term.

normochromatic

A) Cells show marked variation in shape.
B) Cells show marked variation in size.
C) Cells have proper amount of hemoglobin.
D) Cells have large, pale central area.

Question 25

Match the definitions with the appropriate term.

hypochromic

A) Cells show marked variation in shape.
B) Cells show marked variation in size.
C) Cells have proper amount of hemoglobin.
D) Cells have large, pale central area.

Question 26

Which of the following statements is true about performing an accurate "sed rate" procedure?

A)Tube must be read at exactly 2 hours. 
B)The venous sample must be well-mixed  
C)Test should be set up within 3 hours after the blood is drawn. 
D)Test is conducted at 50 degrees Fahrenheit.

Question 27

Which of the following is NOT a cellular component of the blood?

A)RBC
B)Plasma  
C)WBC
D)Platelet

Question 28

Which of the following blood cells is NOT a granulocyte?

A)Eosinophil
B)Neutrophil  
C)Lymphocyte
D)Basophil

Question 29

Match the definitions with the appropriate term.

anisocytosis

A) Cells show marked variation in shape.
B) Cells show marked variation in size.
C) Cells have proper amount of hemoglobin.
D) Cells have large, pale central area.

Question 30

Match the definitions with the appropriate term.

poikilocytosis

A) Cells show marked variation in shape.
B) Cells show marked variation in size.
C) Cells have proper amount of hemoglobin.
D) Cells have large, pale central area.