The client has been ordered a nonselective beta-blocking agent called propranolol, PO. Propranolol is used in the treatment of which disorders (Select All that Apply.)
Hypoglycemia
Arrhythmias
Hypertension
Hypokalemia
Angina
Correct Answer : B,C,E
A) Hypoglycemia:
Propranolol, a nonselective beta-blocking agent, can mask some of the symptoms of hypoglycemia, such as tachycardia and tremors, by blocking the sympathetic response. Therefore, it is not typically used in the treatment of hypoglycemia and may even exacerbate low blood sugar levels.
B) Arrhythmias:
Propranolol is commonly used in the treatment of various cardiac arrhythmias. By blocking beta-adrenergic receptors in the heart, it reduces the heart rate and myocardial contractility, thereby helping to control arrhythmias such as atrial fibrillation and ventricular tachycardia.
C) Hypertension:
Propranolol is effective in lowering blood pressure and is often prescribed for the management of hypertension. Its beta-blocking action reduces cardiac output and suppresses renin release, leading to decreased systemic vascular resistance and blood pressure.
D) Hypokalemia:
Propranolol does not have a direct role in the treatment of hypokalemia. While it can potentially exacerbate hypokalemia through its effects on potassium metabolism, it is not a primary treatment for this electrolyte imbalance.
E) Angina:
Propranolol is indicated for the treatment of angina pectoris, particularly in cases of stable angina. By reducing myocardial oxygen demand through its negative chronotropic and inotropic effects, it helps relieve anginal symptoms and improve exercise tolerance."
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Pulmonary artery:
The pulmonary artery carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation. This is the correct starting location for blood flow from the heart to the lungs in the pulmonary circulation.
B) Left atrium:
The left atrium receives oxygenated blood from the pulmonary veins and pumps it into the left ventricle, not from the right ventricle to the lungs.
C) Left ventricle:
The left ventricle pumps oxygenated blood into the systemic circulation, not from the right ventricle to the lungs.
D) Pulmonary veins:
The pulmonary veins carry oxygenated blood from the lungs to the left atrium of the heart, not from the right ventricle to the lungs."
Correct Answer is C
Explanation
A) Milk:
Milk is not known to interact significantly with verapamil. Therefore, there's no need for the client to avoid consuming milk while taking this medication.
B) Orange juice:
Orange juice does not typically interact with verapamil. However, calcium-containing foods and beverages, including orange juice, may reduce the absorption of verapamil when taken simultaneously. While the interaction is not severe, it's advisable for clients to separate the administration of verapamil from calcium-rich foods and beverages to optimize absorption.
C) Grapefruit juice:
This is the correct answer. Grapefruit juice contains compounds that inhibit the activity of cytochrome P450 enzymes, particularly CYP3A4, which are involved in the metabolism of many medications, including verapamil. Consuming grapefruit juice while taking verapamil can lead to elevated blood levels of the medication, increasing the risk of side effects and toxicity. Therefore, clients should avoid grapefruit juice while on verapamil therapy.
D) Coffee:
Coffee does not typically interact with verapamil. However, caffeine-containing beverages like coffee may exacerbate certain side effects of verapamil, such as dizziness or palpitations, due to their stimulant effects. Clients may be advised to limit caffeine intake or consume coffee in moderation while taking verapamil.
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