CYU PATHO 370 - WEEK 2 ASSESSMENT
FULLY DETAILED WITH ALL ACCURATE
SOLUTIONS
D
Histamine mediates type I hypersensitivity reactions.
Complement mediates type II hypersensitivity reactions.
Antigen-antibody immune complexes mediate type III hypersensitivity reactions.
T cells mediate type IV hypersensitivity reactions - answer ✔✔-An important mediator of a type I
hypersensitivity reaction is
a. complement.
b. antigen-antibody immune complexes.
c. T cells.
d. histamine.
B
Iron-deficiency anemia is characterized by a low hemoglobin concentration and low mean corpuscular
volume.
Vitamin B 12 deficiency anemia is characterized by a high concentration of MCV and a normal level of
MCHC.
,Folate deficiency anemia is characterized by a normal mean corpuscular hemoglobin concentration and
a high mean corpuscular volume.
Erythropoietin deficiency creates hypoxia from a low hemoglobin level. - answer ✔✔-A low mean
corpuscular hemoglobin concentration (MCHC) and mean corpuscular volume (MCV) are characteristic
of which type of anemia?
a. Folate deficiency
b. Iron deficiency
c. Vitamin B12 deficiency
d. Erythropoietin deficiency
C
The release of norepinephrine results in arterial vasoconstriction via receptors located on the vascular
smooth muscle walls.
Calcium channel blockers produce vasodilation by interfering with calcium intake into the vascular
smooth muscle cells.
α-Adrenergic antagonists do not cause vasoconstriction.
Acetylcholine does not have an effect on vasoconstriction - answer ✔✔-What causes vasoconstriction?
a. Calcium channel blocker
b. A-Adrenergic antagonist
c. Norepinephrine
d. Acetylcholine
D
,Secondary polycythemia is because of chronic hypoxemia with a resultant increase in erythropoietin
production.
The goal of treatment is aimed at measures to reduce hypoxemia and improve oxygenation by
implementing oxygen therapy.
IV fluids may be used to treat relative polycythemia, because it is related to dehydration.
Phlebotomy or increases in laboratory studies do not have an effect on secondary polycythemia.
Polycythemia is not treated with chemotherapeutic agents. - answer ✔✔-The most appropriate
treatment for secondary polycythemia is
a. Volume expansion with saline
b. Chemotherapy
c. Phlebotomy
d. Measured to improve oxygenation
C
Vitamin K deficiency bleeding is found in newborns and includes melena, bleeding from the umbilicus,
and hematuria.
Acquired vitamin K deficiency may include gastrointestinal bleeding, ecchymoses, menorrhagia, and
hematuria.
von Willebrand disease presents as epistaxis, mucosal bleeding, ecchymoses, gastrointestinal bleeding,
and menorrhagia.
Disseminated intravascular coagulation includes bleeding from orifices, petechiae, and ecchymoses on
skin and mucous membranes. - answer ✔✔-A newborn has melena, bleeding from the umbilicus, and
hematuria. The newborn most likely experiencing
, a. disseminated intravascular coagulation.
b. von Willebrand disease.
c. vitamin K deficiency bleeding.
d. acquired vitamin K deficiency.
B
Compression of the spinal cord is one of the two most serious oncology emergencies associated with
non-Hodgkin lymphoma. - answer ✔✔-Two of the most serious oncology emergencies associated with
non-Hodgkin lymphoma are obstruction of the superior vena cava and compression of the spinal cord.
A. False
B. True
D
Hyperemia is a local increase in blood flow.
Autoregulation is the ability of blood vessels within organs to maintain a constant blood flow.
Edema is the swelling that results from hyperemia.
Hypoxia is an insufficient supply of oxygen - answer ✔✔-When a patient is struck in the eye by a
baseball, the result is redness and swelling. This increase in blood flow to a localized area is called
a. autoregulation.
b. hypoxia.
c. edema.
d. hyperemia
FULLY DETAILED WITH ALL ACCURATE
SOLUTIONS
D
Histamine mediates type I hypersensitivity reactions.
Complement mediates type II hypersensitivity reactions.
Antigen-antibody immune complexes mediate type III hypersensitivity reactions.
T cells mediate type IV hypersensitivity reactions - answer ✔✔-An important mediator of a type I
hypersensitivity reaction is
a. complement.
b. antigen-antibody immune complexes.
c. T cells.
d. histamine.
B
Iron-deficiency anemia is characterized by a low hemoglobin concentration and low mean corpuscular
volume.
Vitamin B 12 deficiency anemia is characterized by a high concentration of MCV and a normal level of
MCHC.
,Folate deficiency anemia is characterized by a normal mean corpuscular hemoglobin concentration and
a high mean corpuscular volume.
Erythropoietin deficiency creates hypoxia from a low hemoglobin level. - answer ✔✔-A low mean
corpuscular hemoglobin concentration (MCHC) and mean corpuscular volume (MCV) are characteristic
of which type of anemia?
a. Folate deficiency
b. Iron deficiency
c. Vitamin B12 deficiency
d. Erythropoietin deficiency
C
The release of norepinephrine results in arterial vasoconstriction via receptors located on the vascular
smooth muscle walls.
Calcium channel blockers produce vasodilation by interfering with calcium intake into the vascular
smooth muscle cells.
α-Adrenergic antagonists do not cause vasoconstriction.
Acetylcholine does not have an effect on vasoconstriction - answer ✔✔-What causes vasoconstriction?
a. Calcium channel blocker
b. A-Adrenergic antagonist
c. Norepinephrine
d. Acetylcholine
D
,Secondary polycythemia is because of chronic hypoxemia with a resultant increase in erythropoietin
production.
The goal of treatment is aimed at measures to reduce hypoxemia and improve oxygenation by
implementing oxygen therapy.
IV fluids may be used to treat relative polycythemia, because it is related to dehydration.
Phlebotomy or increases in laboratory studies do not have an effect on secondary polycythemia.
Polycythemia is not treated with chemotherapeutic agents. - answer ✔✔-The most appropriate
treatment for secondary polycythemia is
a. Volume expansion with saline
b. Chemotherapy
c. Phlebotomy
d. Measured to improve oxygenation
C
Vitamin K deficiency bleeding is found in newborns and includes melena, bleeding from the umbilicus,
and hematuria.
Acquired vitamin K deficiency may include gastrointestinal bleeding, ecchymoses, menorrhagia, and
hematuria.
von Willebrand disease presents as epistaxis, mucosal bleeding, ecchymoses, gastrointestinal bleeding,
and menorrhagia.
Disseminated intravascular coagulation includes bleeding from orifices, petechiae, and ecchymoses on
skin and mucous membranes. - answer ✔✔-A newborn has melena, bleeding from the umbilicus, and
hematuria. The newborn most likely experiencing
, a. disseminated intravascular coagulation.
b. von Willebrand disease.
c. vitamin K deficiency bleeding.
d. acquired vitamin K deficiency.
B
Compression of the spinal cord is one of the two most serious oncology emergencies associated with
non-Hodgkin lymphoma. - answer ✔✔-Two of the most serious oncology emergencies associated with
non-Hodgkin lymphoma are obstruction of the superior vena cava and compression of the spinal cord.
A. False
B. True
D
Hyperemia is a local increase in blood flow.
Autoregulation is the ability of blood vessels within organs to maintain a constant blood flow.
Edema is the swelling that results from hyperemia.
Hypoxia is an insufficient supply of oxygen - answer ✔✔-When a patient is struck in the eye by a
baseball, the result is redness and swelling. This increase in blood flow to a localized area is called
a. autoregulation.
b. hypoxia.
c. edema.
d. hyperemia
