Which of the Following Reduce the Hearts Demand for Oxygen

question 19

Multiple Choice

Which of the following reduce the hearts demand for oxygen by lowering heart rate?

• A)Anticoagulants and beta-adrenergic blockers
• B)Calcium channel blockers and anticoagulants
• C)Organic nitrates and calcium channel blockers
• D)Beta-adrenergic blockers and calcium channel blockers

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