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

Answer and Explanation

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."

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Correct Answer is C

Explanation

A) Glaucoma:
While propranolol can exacerbate symptoms of glaucoma, it is not an absolute contraindication. However, caution is warranted in clients with glaucoma due to its potential to increase intraocular pressure.

B) Depression:
Propranolol is not contraindicated in clients with a history of depression. In fact, it is sometimes used to manage anxiety symptoms associated with certain types of depression.

C) Asthma:
Propranolol is contraindicated in clients with a history of asthma or bronchospasm because it can exacerbate bronchoconstriction and potentially precipitate an acute asthma attack.

D) Migraines:
Propranolol is often used prophylactically in clients with migraines to reduce the frequency and severity of attacks. It is not contraindicated in clients with a history of migraines."

A. Is it caused by demyelination of the nerve fibers. B. Is it thought to be an autoimmune disease. C. It is associated with destruction of acetylcholine receptor sites. D. Once symptoms present, it has a 5-year survival rate. E. It is a chronic and progressive muscular disease. F. Is it best treated with antibiotics.

Correct Answer is ["B","C","E"]

Explanation

A) Is it caused by demyelination of the nerve fibers:
Myasthenia gravis is not primarily caused by demyelination of nerve fibers. It is characterized by dysfunction at the neuromuscular junction, specifically involving the acetylcholine receptors.

B) Is it thought to be an autoimmune disease:
This is correct. Myasthenia gravis is considered an autoimmune disorder in which the body's immune system mistakenly targets and attacks its own tissues, particularly the acetylcholine receptors at the neuromuscular junction.

C) It is associated with destruction of acetylcholine receptor sites:
This is correct. In myasthenia gravis, there is a reduction in the number of functional acetylcholine receptors due to autoimmune-mediated destruction or blocking of these receptors.

D) Once symptoms present, it has a 5-year survival rate:
This statement is inaccurate. Myasthenia gravis is a chronic condition, but survival rates are not determined by the onset of symptoms. With appropriate treatment, many individuals with myasthenia gravis can manage their symptoms effectively and have a normal life expectancy.

E) It is a chronic and progressive muscular disease:
This is correct. Myasthenia gravis is a chronic neuromuscular disorder characterized by fluctuating muscle weakness and fatigue. While it is chronic, it is not necessarily progressive in all cases, as symptoms may stabilize or improve with treatment.

F) Is it best treated with antibiotics:
Antibiotics are not the primary treatment for myasthenia gravis. Treatment typically involves medications that enhance neuromuscular transmission, such as acetylcholinesterase inhibitors or immunosuppressive drugs, along with other supportive measures.

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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.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse caring for a client”who has hypertension and asks the nurse about a prescription for propranolol. The nurse should inform the client that this medication is contraindicated in clients who have a history of which of the following conditions?

Correct Answer is C

Explanation

A nurse is explaining myasthenia gravis to a family. Which of the following points would be included in the explanation? (Select All that Apply.)

Correct Answer is ["B","C","E"]

Explanation

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