The nurse has completed medication education with the patient who is receiving atenolol (Tenormin). The nurse determines that teaching is effective when the patient makes which statement?
1. "I must avoid grapefruit juice when I take this medicine."
2. "I must call my doctor if I want to stop this medicine."
3. "I must check my pulse before taking the medicine, and call the doctor if it is less than 50."
4. "I must take this medicine with food so it will be properly absorbed."
Correct Answer: 2
Rationale: When beta blockers are abruptly discontinued, adrenergic receptors are stimulated causing excitation. This could result in tachycardia or myocardial infarction (MI). Atenolol (Tenormin) may be taken with or without food. Atenolol (Tenormin) is not metabolized through the CYP 450 chromosome system, so grapefruit juice is not contraindicated. Patients should check their pulse prior to taking atenolol (Tenormin), but they should call the physician if the pulse is less than 60, not 50.
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