Oxygen is attached to _______.
a. an iron atom located on the heme portion of hemoglobin
b. a calcium atom located on the globin portion of hemoglobin
c. a calcium atom located on the heme portion of hemoglobin
d. an iron atom located on the globin portion of hemoglobin
The oxygen-carrying capacity of the blood is evaluated using _______.
a. cholesterol measurements
b. hematocrit measurements and hemoglobin measurements
c. hematocrit measurements and cholesterol measurements
d. hematocrit measurements
e. hemoglobin measurements
Release of which of the following hormones results in higher levels of erythrocytes?
a. testosterone and erythropoietin
c. estrogen and erythropoietin
Which type of anemia is a genetic disorder resulting in abnormally shaped erythrocytes?
b. sickle cell anemia
c. aplastic anemia
d. pernicious anemia
The blood sample from which of the following had the highest hematocrit?
a. a healthy male living in Boston
b. a healthy female living in Boston
c. a healthy female living in Denver
d. a healthy male living in Denver
The blood sample(s) from which of the following displayed polycythemia?
a. a healthy male living in Boston and a healthy male living in Denver
b. a healthy female living in Denver
c. a healthy male living in Denver
d. a healthy female living in Denver and a healthy male living in Denver
e. a healthy male living in Boston
The hematocrit for the female with iron-deficiency anemia was _______.
a. above normal
c. indicative of polycythemia
d. below normal
e. above normal and indicative of polycythemia
Which of the samples are from patients that suffer from a condition in which insufficient oxygen is transported to the body's cells?
a. samples 1 and 3
b. samples 1 and 2
c. samples 3 and 4
d. samples 5 and 6
Which of the following would indicate a worsening of the disease?
a. decreased ESR with angina
b. increased ESR with rheumatoid arthritis
c. decreased ESR with pelvic inflammatory disease
d. decreased ESR with acute appendicitis
Rouleaux formation is characterized by _______.
a. a decrease in ESR and a decrease in fibrinogen production
b. an increase in ESR and a decrease in fibrinogen production
c. an increase in ESR
d. a decrease in fibrinogen production
e. a decrease in ESR
ESR is useful in distinguishing between _______.
a. rheumatoid arthritis and bone cancer
b. angina and a myocardial infarction as well as acute appendicitis and ruptured ectopic pregnancy
c. angina and a myocardial infarction
d. acute appendicitis and ruptured ectopic pregnancy
e. All of the above are correct.
Erythrocyte sedimentation relies upon _______.
a. blood pressure
Which of the following had the fastest sedimentation rate?
a. the individual suffering a myocardial infarction
b. the healthy individual
c. the individual with sickle cell anemia
d. the individual with angina pectoris
Which sample did NOT settle at all in one hour?
a. the individual suffering a myocardial infarction
b. the individual with angina pectoris
c. the healthy individual
d. the individual with sickle cell anemia
In comparing the sedimentation rate for the individual with angina pectoris with that of the healthy individual, which of the following statements is true?
a. The sedimentation rate was greater for the individual with angina pectoris.
b. The sedimentation rate was not measured for the individual with angina pectoris.
c. The sedimentation rate was greater for the healthy individual.
d. The sedimentation rates were the same for both individuals.
Which of the following explains the result for the individual with sickle cell anemia?
a. The lack of iron prevented the red blood cells from settling.
b. The lack of iron in the red blood cells allowed them the settle faster.
c. The shape of the red blood cells prevented them from settling.
d. The shape of the red blood cells allowed them to settle faster.
Each hemoglobin molecule can carry ______________ oxygen molecule(s).
Which of the following does NOT result in an increase in hemoglobin levels?
c. congestive heart failure
d. living at high altitudes
a. has oxygen attached to the polypeptide chain of hemoglobin
b. has a dull, brick-red color
c. has a dull, brick-red color and has oxygen attached to the iron atom
d. has oxygen attached to the iron atom
e. has a dull, brick-red color and has oxygen attached to the polypeptide chain of hemoglobin
Recall that the normal range for the hematocrit for a female is 37 - 47%, and the normal range for the hemoglobin level for a female is 12 - 16 g/100 ml. Describe hemoglobin and hematocrit values for the female with iron-deficiency anemia.
a. They were both below normal.
b. They were both normal.
c. The hemoglobin was below normal, and the hematocrit was normal.
d. The hemoglobin was normal, and the hematocrit was below normal
Which of the following blood samples did NOT have a normal ratio of PCV to Hb?
a. the female with iron-deficiency anemia and the healthy female
b. the healthy female
c. the male with polycythemia
d. the female with iron-deficiency anemia and the male with polycythemia
e. the female with iron-deficiency anemia
The most numerous blood cells are ________.
a. red blood cells
A blood test reveals a large increase in the number of RBCs. One possible explanation for this may be ________.
Which test measures hemoglobin concentration in the blood?
a. hemoglobinometer determination
c. blood typing
d. bleeding time
A normal red blood cell count is ________; of the sexes, ________ generally have greater numbers.
a. 2 to 3 million/mm2 of blood; men
b. 4 to 6 million/mm2 of blood; women
c. 2 to 3 million/mm2 of blood; women
d. 4 to 6 million/mm2 of blood; men
The hematocrit measures ________.
a. the volume of WBC in a blood sample
b. the number of WBC/mm3 of blood
c. the number of RBC/mm3 of blood
d. the volume of RBC in a blood sample
From the choices listed here, the most accurate way to assess the oxygen-carrying capacity of the blood is probably to measure the ________.
a. coagulation time
b. hemoglobin content
d. blood type
This cell is the largest white blood cell. It lacks cytoplasmic granules and has a kidney-shaped nucleus.
Which of the following white blood cells are granulocytes?
a. neutrophils and lymphocytes
b. basophils and neutrophils
c. lymphocytes and monocytes
d. eosinophils and monocytes
A person who has symptoms of paleness and chronic fatigue is suspected of having anemia. To investigate this suspicion further, it would be most helpful to measure ________.
a.differential WBC count
b. total WBC count
a. may indicate a disease such as cirrhosis of the liver or tuberculosis
b.is characterized by uncontrolled proliferation of abnormal WBCs
c. may result from bone marrow cancer, or from living at high altitudes
d. is characterized by an abnormally high WBC count
A patient reports to the doctor that she bruises very easily, and when she cuts herself, she has a hard time stopping the bleeding. What test might a health care provider order to help diagnose this problem?
a. plasma cholesterol concentration
b. blood typing
d. coagulation time
These are the most abundant leukocytes, constituting 40-70% of all white blood cells.
These white blood cells kill parasitic worms and play a complex role in allergic responses and asthma.