N300 QUIZ3 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE 2025/2026

8/21/25, 8:53
AM




N300 QUIZ3 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED LATEST
UPDATE 2025/2026

Terms in this set (45)



Which of the following B. Arteries
carries oxygenated blood
away from the heart?
A. Veins
B. Arteries
C. Capillaries
D. Lymphatics
Which heart sound A. Lub (S1)
(Lub/Dub) corresponds
to the closure of the
AV valves?
A. Lub (S1)
B. Dub (S2)
C. Both Lub and Dub
D. Neither
What happens during B. Ventricular contraction
the QRS complex in an
ECG?
A. Atrial contraction


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B. Ventricular contraction
C. Ventricular relaxation
D. Aortic valve closure
Which of the following C. Dopamine
increases cardiac
output?
A. Beta-blockers
B. Diuretics
C. Dopamine
D. ACE inhibitors




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Which sound is C. S4
associated with a stiff
ventricle and occurs
before S1?
A. S2
B. S3
C. S4
D. Murmur
What is the formula for C. HR × SV
cardiac output?
A. HR - SV
B. HR ÷ SV
C. HR × SV
D. SV ÷ HR




Which disease is known C. Hypertension
as the "silent killer"?
A. Heart failure
B. Coronary artery
disease
C. Hypertension
D. Atherosclerosis
Which lipoprotein is B. HDL
considered the "good"
cholesterol?
A. LDL

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