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) STAT administration of atropine:
This is the correct answer. Atropine is a cholinergic antagonist that can increase heart rate by blocking the action of acetylcholine on cardiac muscarinic receptors. In cases of severe bradycardia, especially if associated with symptoms such as dizziness, syncope, or hypotension, atropine is often administered to increase heart rate and improve cardiac output. The dose of atropine and frequency of administration depend on the severity of bradycardia and the clinical response.
B) Administration of activated charcoal:
Activated charcoal is used in cases of overdose or poisoning to absorb ingested toxins and prevent their absorption into the bloodstream. However, in this scenario, where the primary concern is bradycardia resulting from cholinesterase inhibitor (donepezil) toxicity, activated charcoal would not be effective in reversing the bradycardic effects of the medication.
C) Hemodialysis:
Hemodialysis is a renal replacement therapy used to remove toxins and waste products from the blood in individuals with kidney failure. While hemodialysis may be indicated in cases of severe drug overdose or poisoning to enhance toxin elimination, it is not typically used as a first-line intervention for bradycardia associated with cholinesterase inhibitor toxicity.
D) Intravenous administration of pseudoephedrine:
Pseudoephedrine is a sympathomimetic drug that acts as a vasoconstrictor and can increase heart rate and blood pressure. While it may be used to treat bradycardia in some cases, such as severe symptomatic bradycardia unresponsive to atropine, it is not the first-line treatment for cholinesterase inhibitor toxicity-induced bradycardia. Atropine is preferred due to its direct antagonism of muscarinic receptors in the heart.
Correct Answer is C
Explanation
A) "I should limit my fluid intake while taking this medication":
This statement is incorrect. Furosemide is a loop diuretic that increases urine production to reduce fluid overload in conditions like heart failure or edema. It is essential for clients taking furosemide to maintain adequate hydration to prevent dehydration. Therefore, the client should not limit their fluid intake while taking this medication.
B) "My blood pressure will increase while I am taking this medication":
This statement is incorrect. Furosemide is primarily used to reduce blood pressure by promoting diuresis and reducing fluid volume. Therefore, it is unlikely that blood pressure would increase while taking this medication.
C) "I should take this medication in the morning rather than at night":
This is the correct answer. Furosemide is usually taken in the morning to prevent nocturia (excessive urination at night), as it can increase urinary frequency. Taking it earlier in the day allows for better fluid balance during waking hours and reduces the need to wake up frequently during the night to urinate.
D) "I should eat a diet low in potassium while taking this medication":
This statement is incorrect. Furosemide can cause potassium depletion as a side effect, so clients may be advised to consume potassium-rich foods or supplements unless contraindicated due to other medical conditions. However, it is not necessary to eat a diet low in potassium while taking furosemide unless specifically instructed by a healthcare provider.
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