1
Which of the following best defines hematology?
Study of blood chemistry
Study of blood proteins
Study of blood plasma
Study of blood cells
Study of blood cells
Which of the following is the most common type of hemoglobin disease seen in ambulatory care?
Iron deficiency anemia
Sickle cell anemia
Pernicious anemia
Hypovolemia
Iron deficiency anemia
Which of the following is required for the synthesis of the heme portion of the hemoglobin molecule?
Calcium
Phosphorus
Iron
Carbon dioxide
Iron
Which of the following is a true statement regarding immunity?
Passively acquired immunity is through fighting off disease.
Actively acquired immunity is through an injection.
Immunity is always permanent.
None of the above
None of the above
Which of the following is the normal range of values for the hematocrit of the adult male?
36–46%
30–40%
40–45%
40–55%
40–55%
which of the following is the major component of the RBC that transports oxygen?
Serum
Hemoglobin
Plasma
Protein
Hemoglobin
Which of the following is NOT generally included in the complete blood count (CBC)?
Hemoglobin determination
Hematocrit determination
Erythrocyte sedimentation rate
Red blood cell (RBC) count
Erythrocyte sedimentation rate
Which of the following is the normal range of values for hemoglobin of adult women?
9–14 g/dl
12–14 g/dl
12–16 g/dl
13–18 g/dl
12–16 g/dl
which of the following is the hormone required for the production of new red blood cells?
Hematopoietin
Erythropoietin
Hemoglobin
Plasma
Erythropoietin
WBCs are divided into two basic groups known as what?
Granulocytes and cytoplasm
Polymorphonuclear and apolymorphonuclear
Mononuclear and agranulocytes
Granulocytes and agranulocytes
Granulocytes and agranulocytes
Which of the following best describes a hematocrit test?
Ratio of the volume of packed red blood cells
Requires a large amount of blood
Measures the total volume of WBCs
Requires filling one capillary tube
Ratio of the volume of packed red blood cells
Leukocytes provide specific disease-fighting functions in the blood. Which one of the following is NOT one of them?
Coagulation
Phagocytosis
Detoxification
Immune response
Coagulation
Platelets or thrombocytes are involved in doing what in the blood?
Fighting infection
Coagulation
Carry’s oxygen
All the above
Coagulation
Oxygenated hemoglobin is what color?
Dark red
Bright red
Blue
Yellow
Bright red
What type of blood is used for the microhematocrit test?
Arterial
Capillary
Capillary and arterial
None of the above
Capillary
Which of the following is the reference range of a leukocyte count for adults?
4,500–11,000
5,000–12,000
6,000–14,000
10,000–30,000
4,500–11,000
How can the WBC count be estimated when performing the microhematocrit test?
Cannot be estimated
Measured at the bottom of the tube
By measuring buffy coat thickness
By the amount of plasma and platelets
By measuring buffy coat thickness
When placing the sealed tubes into the microhematocrit centrifuge, what must be done before closing the lid?
Place the tubes in slots next to each other.
Place the tubes opposite each other, balancing each other across the centrifuge.
Determine the average values.
Set the timer and adjust the speed.
Place the tubes opposite each other, balancing each other across the centrifuge.
Which of the following statements is false about disease states and cell changes?
Appendicitis causes increased neutrophils.
Viral infections are associated with increased red blood cells.
Iron deficiency anemia shows hypochromic red blood cells.
Infectious mononucleosis shows increased lymphocytes.
Viral infections are associated with increased red blood cells.
Which of the following blood cells is NOT a granulocyte?
Eosinophil
Neutrophil
Lymphocyte
Basophil
Lymphocyte
Which of the following is the normal value for a platelet count?
20,000–50,000
50,000–100,000
150,000–450,000
400,000–600,000
150,000–450,000
Which of the following is the most numerous of the white blood cells?
Monocytes
Lymphocytes
Neutrophils
Eosinophils
Neutrophils
hich of the following statements is true about performing an accurate “sed rate” procedure?
Tube must be read at exactly 2 hours.
The venous sample must be well-mixed
Test should be set up within 3 hours after the blood is drawn.
Test is conducted at 50 degrees Fahrenheit.
The venous sample must be well-mixed
Which of the following is NOT a cellular component of the blood?
RBC
Plasma
WBC
Platelet
Plasma
Which of the following best describes erythrocyte indices?
Calculations that provide size and hemoglobin content of RBCs
Provides information for hematocrit
Allows for calculations of oxygen in hemoglobin
Abbreviated MCV, MCA, and MCC
Calculations that provide size and hemoglobin content of RBCs