,DAANCE (ALL MODULES) NEWEST 2026/ 2027 ACTUAL
EXAM TEST BANK| COMPLETE 950 REAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+|
DAANCE CERTIFICATION EXAM PREP (NEWEST!!)
Question 1
Which chamber of the heart pumps oxygenated blood into the
systemic circulation?
A) Right atrium
B) Right ventricle
C) Left atrium
D) Left ventricle
Correct Answer: D
Rationale: The left ventricle pumps oxygenated blood through
the aorta into the systemic circulation. It has the thickest
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,myocardial wall to generate the pressure needed for systemic
perfusion. The right ventricle pumps deoxygenated blood to the
lungs via the pulmonary artery .
Question 2
What is the primary pacemaker of the heart?
A) Atrioventricular (AV) node
B) Bundle of His
C) Sinoatrial (SA) node
D) Purkinje fibers
Correct Answer: C
Rationale: The sinoatrial (SA) node is the primary pacemaker,
generating electrical impulses at 60-100 beats per minute. The
AV node (40-60 bpm), Bundle of His, and Purkinje fibers (20-40
bpm) are secondary pacemakers that take over if the SA node
fails .
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, Question 3 k
Which ECG waveform represents ventricular depolarization?
k k k k k
A) P wave
k
B) QRS complex k
C) T wave
k
D) U wave k
Correct Answer: B k k
Rationale: The QRS complex represents ventricular depolarization
k k k k k k
k (contraction). The P wave represents atrial depolarization. The T
k k k k k k k k
wave represents ventricular repolarization. The U wave is a small
k k k k k k k k k k
k wave sometimes seen after the T wave, of uncertain significance .
k k k k k k k k k k
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