Science Medicine Hematology
WGU D115 Unit 5
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2024/25|WGU D116 Pharmacology ||... WGU D116 OA review Hematology: Acute
Teacher 161 terms 133 terms 23 terms
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Which two processes are Platelet activation involves three linked processes: (1) adhesion,
involved in platelet activation? (2) activation, and (3) aggregation. Platelet activation stimuli
Cyclooxygenase-1 (COX-1) include epinephrine, thrombin, and collagen.
inactivation
Aggregation
Adhesion
Select four common causes of Impaired production of erythrocytes, increased red cell
anemia from the list below. destruction, severe bleeding, and chronic blood loss can cause
Increased red cell destruction anemia.
Chronic blood loss
Severe bleeding
Impaired erythrocyte
production
Blood transfusion
explain why the nurse Without the presence of intrinsic factor, vitamin B12 will not be
practitioner should ask the absorbed effectively from the gastrointestinal tract.
patient about her paresthesias
and ataxia.
Pernicious anemia is caused by vitamin B12 deficiency, which is
often associated with the end stage of type A chronic atrophic
Describe what causes
(autoimmune) gastritis. Autoimmune gastritis impairs the
pernicious anemia.
production of IF, which is required for vitamin B12 uptake from
the gut.
Select three possible causes of There are multiple causes of lymphadenopathy. It may be caused
lymphadenopathy from the by neoplastic disease, so all lymphadenopathies must be closely
options below. followed and evaluated. Lymphadenopathy may also be caused
Inflammatory condition by an immunologic or inflammatory condition and by lipid
Lipid storage disease storage disease; this type of lymphadenopathy is usually
Neoplastic disease widespread, including the liver and spleen.
Cardiac disease
Peripheral vascular dysfunction
, What is the most common cause Insufficient dietary iron is the most common cause of IDA in
of iron deficiency anemia (IDA) children during the first few years of life.
in children during the first few
years of life?
Dietary insufficiencies
Absorption problems
Blood loss
Increased iron requirement
Which stressor triggers sickling? Low temperature causes vasoconstriction, slowing blood flow,
Increased plasma volume leading to RBC deoxygenation, which triggers sickling.
Increased oxygen tension of the
blood
Decreased plasma osmolality
Low temperature
In 70% of ITP cases, there is an antecedent viral disease that
stimulates production of antiplatelet antibodies that bind to the
plasma membranes of platelets, causing platelet sequestration
cause of ITP
and destruction by phagocytes in the spleen and other lymphoid
tissues at a rate that exceeds the ability of the bone marrow to
produce them.
The prognosis is excellent; 75% of children recover completely
What is the likelihood that the
within three months. By six months after onset, 80% of affected
patient will recover? with ITP
children have regained normal platelet counts.
What is a function of the The pericardial sac provides a physical barrier that protects the
pericardial sac? heart against infection and inflammation. It also protects the
It provides protection to heart heart during gravitational acceleration and deceleration.
valves and heart chambers.
It provides a physical barrier
that protects the heart against
infection and inflammation.
It forms a lining that is
continuous with the arteries,
veins, and capillaries of the
body.
It creates a continuous closed
circulatory system.
Which factors determine cardiac Cardiac output is the product of heart rate multiplied by stroke
output? volume.
Parasympathetic and
sympathetic activity
Heart rate and stroke volume
Right and left atrial pressure
Preload and afterload
Previousquestion
WGU D115 Unit 5
Save
Students also studied
Flashcard sets Study guides
2024/25|WGU D116 Pharmacology ||... WGU D116 OA review Hematology: Acute
Teacher 161 terms 133 terms 23 terms
WEEKEND025 Preview lindsmitten4 Preview Preview
Which two processes are Platelet activation involves three linked processes: (1) adhesion,
involved in platelet activation? (2) activation, and (3) aggregation. Platelet activation stimuli
Cyclooxygenase-1 (COX-1) include epinephrine, thrombin, and collagen.
inactivation
Aggregation
Adhesion
Select four common causes of Impaired production of erythrocytes, increased red cell
anemia from the list below. destruction, severe bleeding, and chronic blood loss can cause
Increased red cell destruction anemia.
Chronic blood loss
Severe bleeding
Impaired erythrocyte
production
Blood transfusion
explain why the nurse Without the presence of intrinsic factor, vitamin B12 will not be
practitioner should ask the absorbed effectively from the gastrointestinal tract.
patient about her paresthesias
and ataxia.
Pernicious anemia is caused by vitamin B12 deficiency, which is
often associated with the end stage of type A chronic atrophic
Describe what causes
(autoimmune) gastritis. Autoimmune gastritis impairs the
pernicious anemia.
production of IF, which is required for vitamin B12 uptake from
the gut.
Select three possible causes of There are multiple causes of lymphadenopathy. It may be caused
lymphadenopathy from the by neoplastic disease, so all lymphadenopathies must be closely
options below. followed and evaluated. Lymphadenopathy may also be caused
Inflammatory condition by an immunologic or inflammatory condition and by lipid
Lipid storage disease storage disease; this type of lymphadenopathy is usually
Neoplastic disease widespread, including the liver and spleen.
Cardiac disease
Peripheral vascular dysfunction
, What is the most common cause Insufficient dietary iron is the most common cause of IDA in
of iron deficiency anemia (IDA) children during the first few years of life.
in children during the first few
years of life?
Dietary insufficiencies
Absorption problems
Blood loss
Increased iron requirement
Which stressor triggers sickling? Low temperature causes vasoconstriction, slowing blood flow,
Increased plasma volume leading to RBC deoxygenation, which triggers sickling.
Increased oxygen tension of the
blood
Decreased plasma osmolality
Low temperature
In 70% of ITP cases, there is an antecedent viral disease that
stimulates production of antiplatelet antibodies that bind to the
plasma membranes of platelets, causing platelet sequestration
cause of ITP
and destruction by phagocytes in the spleen and other lymphoid
tissues at a rate that exceeds the ability of the bone marrow to
produce them.
The prognosis is excellent; 75% of children recover completely
What is the likelihood that the
within three months. By six months after onset, 80% of affected
patient will recover? with ITP
children have regained normal platelet counts.
What is a function of the The pericardial sac provides a physical barrier that protects the
pericardial sac? heart against infection and inflammation. It also protects the
It provides protection to heart heart during gravitational acceleration and deceleration.
valves and heart chambers.
It provides a physical barrier
that protects the heart against
infection and inflammation.
It forms a lining that is
continuous with the arteries,
veins, and capillaries of the
body.
It creates a continuous closed
circulatory system.
Which factors determine cardiac Cardiac output is the product of heart rate multiplied by stroke
output? volume.
Parasympathetic and
sympathetic activity
Heart rate and stroke volume
Right and left atrial pressure
Preload and afterload
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