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A nurse is reinforcing teaching with a client who has a new diagnosis of myasthenia gravis (MG) and a prescription for neostigmine. Which of the following information should the nurse include about the action of the medication?

A.

Improves muscle strength.

B.

Destroys the antibodies that cause MG

C.

Enhances immune system function

D.

Prevents excessive coughing

Answer and Explanation

The Correct Answer is A

a. Improves muscle strength.

Explanation:

Neostigmine is a medication used in the treatment of myasthenia gravis (MG). It belongs to a class of drugs called cholinesterase inhibitors. Neostigmine works by inhibiting the breakdown of acetylcholine, a neurotransmiter involved in muscle contraction. In MG, there is a decrease in the amount of acetylcholine available at the neuromuscular junction, leading to muscle weakness and fatigue.

By inhibiting the breakdown of acetylcholine, neostigmine helps to increase the concentration of acetylcholine at the neuromuscular junction. This, in turn, improves muscle strength and can alleviate the symptoms of weakness and fatigue associated with MG.

Option b, destroying the antibodies that cause MG, is not accurate. Myasthenia gravis is an autoimmune disorder characterized by the presence of antibodies that interfere with neuromuscular transmission.

Neostigmine does not directly target or eliminate these antibodies.

Option c, enhancing immune system function, is not accurate either. Neostigmine primarily acts on the neuromuscular junction to improve muscle strength and does not have a direct effect on immune system function.

Option d, preventing excessive coughing, is not the primary action of neostigmine. While increased muscle strength may indirectly improve respiratory function and reduce coughing in individuals with myasthenia gravis, it is not the primary indication or action of neostigmine.

Therefore, the most accurate information to include in teaching about neostigmine for a client with myasthenia gravis is that it improves muscle strength.


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Related Questions

Correct Answer is A

Explanation

A - This is correct because discomfort while walking can indicate genital trauma or infection, which are possible signs of sexual abuse.

B - This is incorrect because thin extremities can be caused by many factors, such as malnutrition, genetic disorders, or chronic diseases, that are not necessarily related to sexual abuse.

C - This is incorrect because bruises on the upper back can result from accidental injuries, such as falls or bumps, or from physical abuse, such as hitting or kicking, but not specifically from sexual abuse.

D - This is incorrect because a stained shirt can be due to poor hygiene, food spills, or environmental factors, but not necessarily from sexual abuse.

Correct Answer is ["A","B","D"]

Explanation

The correct answers are A, B, and D.

Choice A reason:

Removing an indwelling urinary catheter when it is no longer indicated is a standard postoperative care practice. It helps to reduce the risk of urinary tract infections (UTIs), which are common complications associated with prolonged catheter use. The normal practice is to remove the catheter as soon as the patient can use the bathroom independently or when medically advised.

Choice B reason:

Elevating the affected limb at chest level can help reduce swelling and improve venous return. This is particularly important after surgery involving the lower extremities to prevent edema and promote circulation. Proper elevation assists in managing pain and preventing complications such as deep vein thrombosis (DVT).

Choice C reason:

Assisting with ambulation from bed to chair immediately after surgery may not be appropriate, especially if the adolescent has had surgery on the lower extremity. It is essential to wait for the physician's evaluation and specific instructions regarding weight-bearing and movement post-surgery.

Choice D reason:

Performing neurovascular assessments every hour is crucial after surgery on an extremity. This involves checking for sensation, motor function, color, temperature, capillary refill, and pulse strength. The normal capillary refill time is less than 2 seconds; a refill time of 4 seconds, as noted in the assessment, is abnormal and warrants close monitoring. Frequent assessments help in early detection of complications such as compartment syndrome.

Choice E reason:

Applying warm packs to the right extremity for the first 24 hours post-surgery is not recommended. Warm packs can increase circulation to the area, potentially increasing swelling and bleeding. Instead, cold packs are usually applied to reduce swelling and provide pain relief. The use of warm packs can be considered after the initial 24-hour period, depending on the surgeon's instructions and the wound's response.

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