Lesson 2-1: Introduction to Hematology
MULTIPLE CHOICE
1. All of the following are true of blood vessels EXCEPT:
a. Arteries are thick-walled, the strongest type of blood vessel.
b. Veins carry deoxygenated blood.
c. There are about 10,000 miles of blood vessels in an adult.
d. Capillaries are the smallest blood vessels.
ANS: C PTS: 1
2. In cardiopulmonary circulation:
a. blood is carried from the heart to the tissues
b. blood circulates from the heart to the lungs to the tissues
c. blood circulates from the heart to the lungs where O 2 is picked up by the blood and CO 2 is
released
d. blood is carried from the heart to the tissues and back to the heart, providing O 2 to the
tissues
ANS: C PTS: 1
3. All of the following statements are true of blood EXCEPT:
a. It makes up 10%–15% of the total body weight.
b. Adult blood volume is approximately 5 liters.
c. It is composed of formed elements suspended in a fluid called plasma.
d. About 50%–60% of blood volume is plasma.
ANS: A PTS: 1
4. “Thick-walled, elastic, and muscular” describes which type of blood vessel?
a. capillaries c. veins
b. arteries d. venules
ANS: B PTS: 1
5. Which of the following functions is carried out by blood?
, a. It delivers nutrients and CO 2 to the tissues.
b. It regulates body temperature.
c. It delivers O2 to the lungs and tissues.
d. none of the above (a–c)
e. all of the above (a–c)
ANS: B PTS: 1
COMPLETION
1. A chemical that prevents blood coagulation is a(n) ____________________.
ANS: anticoagulant
PTS: 1
2. A large blood vessel that carries oxygenated blood from the heart to the tissues is a(n)
____________________.
ANS: artery
PTS: 1
3. A capillary is a minute blood vessel that connects the smallest arteries to the smallest
____________________.
ANS: veins
PTS: 1
4. The hemoglobin formed when oxyhemoglobin releases oxygen to the tissues is
____________________.
ANS: deoxyhemoglobin
PTS: 1
5. A condition in which the RBC count or hemoglobin level is decreased below normal is called
____________________.
ANS: anemia
PTS: 1
6. An anticoagulant commonly used in hematology is ____________________.
ANS:
EDTA
ethylenediaminetetraacetic acid
PTS: 1
7. The study of blood and blood-forming tissues is called ____________________.
, ANS: hematology
PTS: 1
8. The liquid portion of the blood in which the cellular elements are suspended is the
____________________.
ANS: plasma
PTS: 1
9. A white blood cell is also known as a(n) ____________________.
ANS: leukocyte
PTS: 1
10. In adults, most blood cells are formed in the ____________________.
ANS: bone marrow
PTS: 1
MATCHING
Choose the best match for each item. Use an answer only once.
a. leukemia g. platelet
b. erythrocyte h. megakaryocyte
c. oxyhemoglobin i. hemopoietic stem cell
d. vein j. deoxyhemoglobin
e. hemoglobin k. granulocyte
f. hemopoiesis
1. leukocyte containing granules
2. major functional component of red blood cells
3. process of blood cell formation
4. involving unrestrained growth of leukocytes
5. blood vessel that carries blood from the tissues to the heart
6. formed element that plays an important role in blood coagulation
7. undifferentiated bone marrow cell that gives rise to blood cells
8. form of hemoglobin that binds and transports oxygen
9. blood cell that transports O2 to tissues and CO2 to the lungs
10. source of platelets
1. ANS: K PTS: 1
2. ANS: E PTS: 1
3. ANS: F PTS: 1
4. ANS: A PTS: 1
5. ANS: D PTS: 1
6. ANS: G PTS: 1
7. ANS: I PTS: 1
, 8. ANS: C PTS: 1
9. ANS: B PTS: 1
10. ANS: H PTS: 1
Lesson 2-2: Hemoglobin
MULTIPLE CHOICE
1. The hemoglobin molecule:
a. is made up of eight globin chains c. contains four heme groups
b. contains protein and heme d. all of the above
ANS: B PTS: 1
2. Which is true concerning hemoglobin(s)?
a. They cannot be measured on small handheld analyzers.
b. They are named according to the type of globin chain.
c. Thalassemias are caused by abnormalities in the heme portion.
d. Hb A1c is the major hemoglobin in infants.
ANS: B PTS: 1
3. Which is true of hemoglobin analysis?
a. It is an indirect measure of oxygen-carrying capacity.
b. It measures the red cell volume.
c. It is always determined from an anticoagulated venous blood sample.
d. No stable standard is available.
ANS: A PTS: 1
4. All of the following are true of hemoglobin EXCEPT:
a. Hemoglobin is usually included in the CBC.
b. The reference value for females is higher than for males.
c. Hemoglobin transports CO2 from the tissue to the lungs.
d. The reference value for newborns is higher than for adult males.
ANS: B PTS: 1
5. Which of the following is true for hemoglobin analysis?
a. The specific gravity method estimates Hgb level.
b. The reference range for adult females is 12–17 g/dL.
c. The Hgb level is unaffected by RBC count.
d. It does not require use of Standard Precautions.
ANS: A PTS: 1
COMPLETION
1. The protein portion of the hemoglobin molecule is the ____________________.
ANS:
globin
globin chains