An older adult client who has type 1 diabetes and chronic bronchitis is prescribed atenolol for the management of angina pectoris. which clinical manifestation should alert the nurse to the fact that the client may be developing a life-threatening response to the drug?

The nurse should look out for symptoms such as extreme tiredness / severe dizziness, very low heart rate, trouble breathing, and swollen toes and finger (could turn blue also). This should show that the patient is developing a severe allergic reaction to the drug that could lead to heart failure.