NCOI- Unit 2 Cardiovascular Questions with Verified Answers
(Correct Update)
Question 1: What does the conduction system in the heart do?
Answer: action potential. The impulse starts depolarization of the cardiac cells and subsequently heart
contraction Contraction of the heart, ejecting blood from the ventricles
Question 2: Systole
Answer: Relaxation of the heart filling the ventricles
Question 3: Diastole
Answer: pumping power. Can be increased by epinephrine and norepinephrine release by the
sympathetic nervous
Page 1
,Question 4: Contractibility
Answer: system. Increasing contractility raises the stroke volume by increasing ventricular emptying.
Question 5: Afterload
Answer: by the size of the ventricle, wall tension, and arterial blood pressure. i. Very faint may only
be heard by an expert not heard in all positions no thrill ii. Soft heard no positions no thrill iii.
Moderately loud, no thrill iv. Louder and associated with a
Page 2
, Question 6: Murmur Grades 1-6
Answer: palpable thrill v. Very loud with thrill heard it with the stethoscope partly off the chest vi.
Loudest with thrills heard, with the stethoscope entirely off the chest. ( just above the pericardium not
touching the skin) Lipid Profile C-reactive Protein Electrocardiogram Echocardiogram
Question 7: Diagnostic studies of the cardiovascular system
Answer: Nuclear Scans Cardiac PET Cardiovascular MRI CT angiography (CTA) Calcium-scoring
screen Cardiac Catheterization
Question 8: Risk Factors for Primary Hypertension
Answer: and middle age males, more common in women over age 64) viii. Family history ix. Obesity
x. Ethnicity xi. Sedentary lifestyle xii. Socioeconomic status xiii. stress 1. Fatigue 2. Dizziness
Question 9: Symptoms of severe hypertension
Answer: 3. Palpitations 4. Angina 5. Dyspnea
Page 3
(Correct Update)
Question 1: What does the conduction system in the heart do?
Answer: action potential. The impulse starts depolarization of the cardiac cells and subsequently heart
contraction Contraction of the heart, ejecting blood from the ventricles
Question 2: Systole
Answer: Relaxation of the heart filling the ventricles
Question 3: Diastole
Answer: pumping power. Can be increased by epinephrine and norepinephrine release by the
sympathetic nervous
Page 1
,Question 4: Contractibility
Answer: system. Increasing contractility raises the stroke volume by increasing ventricular emptying.
Question 5: Afterload
Answer: by the size of the ventricle, wall tension, and arterial blood pressure. i. Very faint may only
be heard by an expert not heard in all positions no thrill ii. Soft heard no positions no thrill iii.
Moderately loud, no thrill iv. Louder and associated with a
Page 2
, Question 6: Murmur Grades 1-6
Answer: palpable thrill v. Very loud with thrill heard it with the stethoscope partly off the chest vi.
Loudest with thrills heard, with the stethoscope entirely off the chest. ( just above the pericardium not
touching the skin) Lipid Profile C-reactive Protein Electrocardiogram Echocardiogram
Question 7: Diagnostic studies of the cardiovascular system
Answer: Nuclear Scans Cardiac PET Cardiovascular MRI CT angiography (CTA) Calcium-scoring
screen Cardiac Catheterization
Question 8: Risk Factors for Primary Hypertension
Answer: and middle age males, more common in women over age 64) viii. Family history ix. Obesity
x. Ethnicity xi. Sedentary lifestyle xii. Socioeconomic status xiii. stress 1. Fatigue 2. Dizziness
Question 9: Symptoms of severe hypertension
Answer: 3. Palpitations 4. Angina 5. Dyspnea
Page 3
