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Heart failure is BEST distinguished from cardiac arrest in that
AFailure means heart pumps inadequately
BFailure means a coronary artery is blocked
CFailure means the heart is auto-excitable
DFailure means heart has stopped beating
Answer & Solution
Correct answer: A. Failure means heart pumps inadequately
Heart failure = heart pumps inadequately to meet body needs (often with pulmonary congestion). Cardiac arrest = heart stops beating altogether. Heart attack = sudden ischaemic damage from coronary blockage.
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