A nurse is caring for a 44-year-old female client in the emergency department.

Exhibits

Complete the following sentence by using the list of options.
The client is experiencing

caused by

This is the correct expected outcome if the test is positive for myasthenia gravis. Edrophonium works quickly to increase acetylcholine levels, leading to temporary improvement in muscle strength. In a patient with myasthenia gravis, administration of edrophonium typically results in a rapid improvement in symptoms like facial weakness and ptosis within 30 to 60 seconds, with the effects lasting for a few minutes. This brief improvement is indicative of a positive result for myasthenia gravis.
B.A Worsening symptoms after administration of edrophonium are not expected and could indicate an adverse reaction or incorrect diagnosis. In myasthenia gravis, edrophonium typically improves symptoms rather than worsening them.
C. No change in symptoms would be unexpected in the case of myasthenia gravis. If edrophonium is effective, there should be a noticeable improvement in symptoms. If there is no change, it might suggest a diagnosis other than myasthenia gravis or that the test is inconclusive.
D. This outcome is not expected. Edrophonium has a very short duration of action, typically relieving symptoms for only a few minutes. The effects do not last for 24 hours. A longer-lasting improvement might be observed with other treatments for myasthenia gravis, such as anticholinesterase medications like pyridostigmine, but not with edrophonium.

A. Cardiac catheterization is often used in the management of an acute myocardial infarction to assess the extent of coronary artery disease and to determine the need for interventions such as angioplasty and stenting. This procedure is crucial for reperfusion therapy, especially in the context of ST-elevation MI (STEMI). Given the client’s symptoms and diagnostic findings, preparing for cardiac catheterization is an appropriate order.
B. While an echocardiogram can be useful for evaluating cardiac function and determining the extent of myocardial damage, it is not typically the immediate priority in the acute management of an MI. The focus is usually on rapid reperfusion therapy and stabilizing the patient. Therefore, this option is less urgent compared to others like administering oxygen and preparing for cardiac catheterization.
C. Warfarin is an oral anticoagulant used for long-term anticoagulation management and is not typically used in the acute setting of an MI. In acute MI management, other anticoagulants such as heparin or low molecular weight heparin are preferred for immediate anticoagulation. Administering warfarin in the acute setting is not appropriate.
D. Furosemide is a diuretic used to manage fluid overload and reduce symptoms of heart failure. It is not indicated as an immediate intervention in acute MI unless there is evidence of significant fluid overload or heart failure symptoms. The client’s current presentation does not suggest an immediate need for furosemide.
E. Supplemental oxygen is important in the management of acute myocardial infarction to ensure
adequate oxygen delivery to the myocardium and to alleviate hypoxia, especially since the client’s oxygen saturation is low at 92%. Providing supplemental oxygen is a standard intervention in the acute management of MI.
F. Sublingual nitroglycerin is commonly used to relieve chest pain in myocardial infarction by causing vasodilation. However, it should be used with caution in the presence of hypotension or other contraindications. Given the client’s symptoms and high heart rate, nitroglycerin could be appropriate,
but should be carefully monitored for effects on blood pressure.
G. A clear liquid diet is not an immediate priority in the management of acute myocardial infarction. Diet modification may be considered later in the course of treatment, but it is not a critical intervention in the acute phase.