Which of the following statements regarding beta-blockers is correct?
A) They increase heart rate and are contraindicated in tachydysrhythmias.
B) They result in bronchospasm and should not be used in patients with COPD.
C) They increase cardiac output and help with left ventricular failure.
D) They are helpful in increasing atrioventricular node conduction and are used in heart blocks.
Correct Answer:
Verified
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