A nurse in the emergency department is attending to a patient exhibiting symptoms of a myocardial infarction. Which of the following actions should the nurse prioritize?
Initiate oxygen therapy.
Obtain a blood sample.
Attach the leads for a 12-lead ECG.
Insert an IV catheter.
The Correct Answer is A
Choice A rationale
The priority action for a nurse when caring for a patient exhibiting symptoms of a myocardial infarction is to initiate oxygen therapy. Oxygen therapy is crucial because it increases the amount of oxygen in the blood, which can help reduce the heart’s workload and relieve pain. This intervention is aimed at reducing myocardial oxygen demand and improving oxygen supply to the ischemic myocardium.
Choice B rationale
Obtaining a blood sample is important as it can help diagnose a myocardial infarction. Blood tests can measure levels of certain proteins, such as troponins, in the bloodstream that can indicate heart muscle damage. However, this is not the immediate priority when compared to initiating oxygen therapy.
Choice C rationale
Attaching the leads for a 12-lead ECG is an important step in the assessment of a patient with suspected myocardial infarction. An ECG can show whether the heart muscle has been damaged and where the damage has occurred. However, this should be done after initiating oxygen therapy.
Choice D rationale
Inserting an IV catheter is a necessary step in the management of a myocardial infarction. It allows for the administration of medications and fluids as needed. However, it is not the first priority. The first priority is to stabilize the patient, which includes initiating oxygen therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
As an advocate, the nurse acts to protect the patient’s rights and helps them to speak for themselves. This includes supporting the patient’s decisions, even when these decisions might not be in line with the nurse’s personal beliefs.
Choice B rationale
As a manager, the nurse coordinates activities of members of the nursing staff in delivering nursing care, and oversight ensures that care is safe, effective, and patient-centered.
Choice C rationale
As a caregiver, the nurse assists patients with meeting their physical, psychological, and developmental needs. This role involves direct patient care activities.
Choice D rationale
As an educator, the nurse works to enhance patients’ knowledge about their health and care, promoting health behaviors and self-care skills.
Correct Answer is B
Explanation
Choice A rationale
Phosphate levels are not directly affected by spironolactone. Spironolactone is a potassium- sparing diuretic and does not typically affect phosphate levels.
Choice B rationale
Decreased potassium level is not typically expected in a patient taking spironolactone. Spironolactone is a potassium-sparing diuretic, meaning it can actually lead to increased potassium levels. However, in the context of liver failure and ascites, other factors may influence potassium levels.
Choice C rationale
Chloride levels are not directly affected by spironolactone. Spironolactone primarily affects the balance of potassium and sodium in the body.
Choice D rationale
Sodium levels could potentially be decreased in a patient taking spironolactone, as it can cause the body to lose sodium. However, in the context of liver failure and ascites, sodium levels are often carefully managed.
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