A 49-year-old male presents with chest pain.
An EKG reveals ST elevation, and he is diagnosed with myocardial ischemia. Which of the following interventions would be most beneficial for this patient?
Encourage exercise to increase heart rate.
Administer a diuretic to decrease volume.
Give an antibiotic to decrease infection.
Apply oxygen to increase myocardial oxygen supply.
The Correct Answer is D
Choice A rationale
Encouraging exercise to increase heart rate in a patient with myocardial ischemia could potentially worsen the condition. Exercise increases the demand for oxygen in the heart, which may not be met due to the reduced blood flow in ischemia, potentially leading to further damage.
Choice B rationale
Administering a diuretic to decrease volume is not the most beneficial intervention for a patient with myocardial ischemia. While diuretics can reduce the workload of the heart by decreasing blood volume, they do not directly address the issue of reduced blood flow to the heart muscle that characterizes ischemia.
Choice C rationale
Giving an antibiotic to decrease infection is not relevant in this context. Myocardial ischemia is not caused by an infection, but by a reduction in blood flow to the heart muscle, often due to a blockage in one or more of the coronary arteries.
Choice D rationale
Applying oxygen to increase myocardial oxygen supply is the most beneficial intervention for a patient with myocardial ischemia. Oxygen therapy can help to meet the oxygen demand of the heart muscle when blood flow is reduced, alleviating symptoms and preventing further damage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Cramping of the toes is not typically associated with a positive Homans sign. Homans sign is a test used to check for deep vein thrombosis (DVT), a blood clot in a deep vein of the leg. While cramping can occur with DVT, it is not specific to this condition and can occur with many other conditions.
Choice B rationale
Blanching of the sole is not associated with a positive Homans sign. Blanching, or whitening of the skin, can occur with various conditions, but it is not a typical sign of DVT45.
Choice C rationale
Resisting dorsiflexion is not a typical response indicating a positive Homans sign. While pain or resistance during dorsiflexion of the foot can occur with various conditions, it is not a specific sign of DVT45.
Choice D rationale
Pain in the calf area during dorsiflexion of the foot (Homans sign) can indicate a positive sign for DVT. However, it’s important to note that Homans sign is not a reliable or definitive test for DVT. Other diagnostic tests, such as ultrasound, are needed to confirm the diagnosis.
Correct Answer is ["A","B","C","D"]
Explanation
Choice A rationale
A 65-year-old male recovering from right lobectomy for treatment of lung cancer is at risk for developing sepsis. Post-surgical patients, especially those with cancer, are at increased risk due to potential infection at the surgical site and a weakened immune system from the cancer and/or its treatment.
Choice B rationale
A 78-year-old female with diabetes mellitus who is recovering from colon surgery is at risk for developing sepsis. Diabetes can impair the immune system, making it harder for the body to fight off infections. Additionally, any surgical procedure carries a risk of infection.
Choice C rationale
A 35-year-old female who is hospitalized with renal insufficiency and has a Foley catheter and central line in place is at risk for developing sepsis. Hospitalized patients, particularly those with invasive devices like catheters and central lines, are at increased risk due to potential introduction of bacteria into the body.
Choice D rationale
A 55-year-old male who is a recent kidney transplant recipient is at risk for developing sepsis. Transplant recipients are often on immunosuppressive therapy to prevent organ rejection, which can leave them more susceptible to infections.
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