TEST BANK FOR MICROBIOLOGY WITH
DISEASES BY TAXONOMY 6TH EDITION
ACTUAL TEST PAPER PREMIUM SOLVED
QUESTIONS FULL SOLUTION ALREADY
PASSED
◉ The primary source of erythropoietin is provided by the
a. bone marrow.
b. kidney.
c. lung.
d. liver. Answer: ANS: B
Erythropoietin is a hormone that is secreted into the bloodstream by
the kidney. Bone
marrow is not responsible for the production of erythropoietin.
Hypoxia from low
hemoglobin levels causes a decrease in tissue oxygen tension in the
kidney, thereby
releasing the hormone erythropoietin. The liver is not associated with
erythropoietin
production.
◉ Reticulocyte Answer: immature red blood cell
,◉ Which condition is associated with an elevated reticulocyte count?
a. Renal disease
b. Aplastic anemia
c. Hypertension
d. Hemolytic anemia Answer: ANS: D
Hemolytic anemia is associated with an increased number of
circulating reticulocytes or
reticulocytosis. Anemia of chronic renal failure is not associated with
reticulocytosis.
Rather, it occurs from failure of the renal endocrine function. Aplastic
anemia is a stem cell
disorder that is characterized by pancytopenia, a decrease in red cells,
white cells, and
platelets. Hypertension is not related to reticulocytosis.
◉ aplastic anemia Answer: failure of blood cell production in the
bone marrow
◉ hemolytic anemia Answer: characterized by an inadequate number
of circulating red blood cells due to the premature destruction of red
blood cells by the spleen
◉ The strength of the bond between oxygen and hemoglobin is
known as the
a. Bohr effect.
b. oxygen-hemoglobin affinity.
, c. dissociation curve.
d. hemoglobin synthesis. Answer: ANS: B
The strength of the bond between oxygen and hemoglobin is called
the oxygen-hemoglobin
affinity. Hemoglobin saturation is higher when oxygen infinity is
increased, and saturation
is lower when affinity is decreased. The Bohr effect occurs when the
oxyhemoglobin
dissociation curve experiences a shift resulting from changes in PCO2
and H+ concentration.
The dissociation curve describes the relationship between the partial
pressure of oxygen and
hemoglobin saturation. Hemoglobin synthesis occurs in the immature
red cell.
◉ An increase in hemoglobin affinity for oxygen occurs with
a. hyperthermia.
b. shift to the right.
c. elevated PCO2.
d. shift to the left Answer: ANS: D
An increase in oxygen affinity is known as a shift to the left on the
dissociation curve.
Hyperthermia does not have an effect on the hemoglobin affinity.
Elevation in PCO2 is seen
with changes in pH. A decrease in the oxygen affinity is associated
with a shift to the right
DISEASES BY TAXONOMY 6TH EDITION
ACTUAL TEST PAPER PREMIUM SOLVED
QUESTIONS FULL SOLUTION ALREADY
PASSED
◉ The primary source of erythropoietin is provided by the
a. bone marrow.
b. kidney.
c. lung.
d. liver. Answer: ANS: B
Erythropoietin is a hormone that is secreted into the bloodstream by
the kidney. Bone
marrow is not responsible for the production of erythropoietin.
Hypoxia from low
hemoglobin levels causes a decrease in tissue oxygen tension in the
kidney, thereby
releasing the hormone erythropoietin. The liver is not associated with
erythropoietin
production.
◉ Reticulocyte Answer: immature red blood cell
,◉ Which condition is associated with an elevated reticulocyte count?
a. Renal disease
b. Aplastic anemia
c. Hypertension
d. Hemolytic anemia Answer: ANS: D
Hemolytic anemia is associated with an increased number of
circulating reticulocytes or
reticulocytosis. Anemia of chronic renal failure is not associated with
reticulocytosis.
Rather, it occurs from failure of the renal endocrine function. Aplastic
anemia is a stem cell
disorder that is characterized by pancytopenia, a decrease in red cells,
white cells, and
platelets. Hypertension is not related to reticulocytosis.
◉ aplastic anemia Answer: failure of blood cell production in the
bone marrow
◉ hemolytic anemia Answer: characterized by an inadequate number
of circulating red blood cells due to the premature destruction of red
blood cells by the spleen
◉ The strength of the bond between oxygen and hemoglobin is
known as the
a. Bohr effect.
b. oxygen-hemoglobin affinity.
, c. dissociation curve.
d. hemoglobin synthesis. Answer: ANS: B
The strength of the bond between oxygen and hemoglobin is called
the oxygen-hemoglobin
affinity. Hemoglobin saturation is higher when oxygen infinity is
increased, and saturation
is lower when affinity is decreased. The Bohr effect occurs when the
oxyhemoglobin
dissociation curve experiences a shift resulting from changes in PCO2
and H+ concentration.
The dissociation curve describes the relationship between the partial
pressure of oxygen and
hemoglobin saturation. Hemoglobin synthesis occurs in the immature
red cell.
◉ An increase in hemoglobin affinity for oxygen occurs with
a. hyperthermia.
b. shift to the right.
c. elevated PCO2.
d. shift to the left Answer: ANS: D
An increase in oxygen affinity is known as a shift to the left on the
dissociation curve.
Hyperthermia does not have an effect on the hemoglobin affinity.
Elevation in PCO2 is seen
with changes in pH. A decrease in the oxygen affinity is associated
with a shift to the right
