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Cardiovascular CH 14 Exam With 100% Correct And Verified Answers 2024
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Cardiovascular CH 14 Exam With 100% Correct And Verified Answers 2024
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Cardiovascular CH 14 Exam With 100%Correct And Verified Answers 2024
Which of the following is the correct description of a
myocardial infarction and what it is caused by?
a) A region of muscle becomes inactive due to a lack of
neuronal stimulation.
b) A region of heart muscle dies due to a lack of blood
supply.
c) A region of heart muscle dies due to a lack of glucose
supply.
d) A region of heart muscle becomes overly active. - Correct
Answer-b) A region of heart muscle dies due to a lack of
blood supply.
How does administration of nitroglycerine help someone
that might be suffering from a myocardial infarction?
a) Nitroglycerine will constrict the coronary vessels, which
will decrease blood flow to the heart muscle.
b) Nitroglycerine will dilate the coronary vessels, which will
increase blood flow to the heart muscle.
Vendarsol
,c) Nitroglycerine will constrict the coronary vessels, which
will increase blood flow to the heart muscle.
d) Nitroglycerine will dilate the coronary vessels, which will
decrease blood flow to the heart muscle. - Correct Answer-b)
Nitroglycerine will dilate the coronary vessels, which will
increase blood flow to the heart muscle.
Although the lab results from Walter's blood work will take
an hour, the ER physician is certain that Walter has had a
myocardial infarction. How did he reach this diagnosis
without knowing the results of the blood work?
a) Walter had a bluish tint to his skin when he came in to the
ER.
b) The ECG of Walter's heart showed the signs of a
myocardial infarction.
c) Walter was very clammy, pale, and incoherent.
d) Walter expressed pain and tightness in his chest. - Correct
Answer-b) The ECG of Walter's heart showed the signs of a
myocardial infarction.
What would a balloon angioplasty do to the resistance in
Walter's affected coronary vessel and how would this
improve his condition?
Vendarsol
, a) increase; increased blood flow to the
myocardium
b) decrease; decreased blood flow to the
myocardium
c) decrease; increased blood flow to the
myocardium
d) increase; decreased blood flow to the
myocardium - Correct Answer-c) decrease;
increased blood flow to the myocardium
Which part of the conduction system initiates
the depolarizing impulse, which spreads
throughout the heart?
a) AV node
b) SA node
c) AV bundle (bundle of His)
d) Purkinje fibers - Correct Answer-b) SA
node
What does the ECG wave tracing represent?
a) electrical activity in the heart
Vendarsol
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