A nurse administers atenolol (Tenormin) to a client suffering an acute MI based on the understanding that this drug will result in which of the following changes in the client? Select all that apply
A) Increase the heart's excitability
B) Decrease the heart's workload
C) Increase the heart's oxygen consumption
D) Decrease heart rate
E) Constrict blood vessels
Ans: B, D
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Atenolol (Tenormin) is a b-adrenergic blocking drug. Blockade of b-adrenergic receptors results in decreased heart rate, dilation of blood vessels, a decrease in the heart's excitability, and a decrease in cardiac workload and oxygen consumption and provides membrane-stabilizing effects.
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