A patient who has had chest pain for several hours is admitted with a diagnosis of rule out acute myocardial infarction (AMI). Which laboratory test is most specific for the nurse to monitor in determining whether the patient has had an AMI?.

Cardiac-specific troponin.

Myoglobin.

Homocysteine.

C-reactive protein.

Answer and Explanation

The Correct Answer is A

Choice A rationale:

Cardiac-specific troponin is a protein that is released into the bloodstream when there is damage to the heart muscle, such as during an acute myocardial infarction (AMI). It is considered the most specific marker for AMI because it is found only in heart muscle. The normal range for troponin I is between 0 and 0.04 ng/mL2.

Choice B rationale:

Myoglobin is a protein found in heart and skeletal muscles. While it can be elevated in AMI, it is not as specific as troponin because it is also found in skeletal muscles. The normal levels of myoglobin are 25 to 72 ng/mL4.

Choice C rationale:

Homocysteine is an amino acid in the blood, and high levels can increase the risk of heart disease. However, it is not specific for AMI5. The normal range of homocysteine levels are less than 15 micromoles per liter.

Choice D rationale:

C-reactive protein (CRP) is a marker of inflammation in the body and can be elevated in various conditions, including heart disease. However, it is not specific for AMI6. The normal CRP level is less than 0.9 milligrams per deciliter.

So, the correct answer is A, after analyzing all choices.

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Correct Answer is D

Explanation

Choice A rationale:

While aspirin is often given to patients with suspected myocardial infarction, asking if the patient took aspirin does not help determine the timing of the onset of symptoms.

Choice B rationale:

Knowing the patient’s allergies is important for medication safety, but it does not help determine eligibility for thrombolytic therapy.

Choice C rationale:

Rating the pain on a scale helps assess the severity of the pain, but it does not provide information about the timing of the onset of symptoms.

Choice D rationale:

The time of pain onset is crucial in determining eligibility for thrombolytic therapy. Thrombolytic therapy is most effective when given within a certain time frame from the onset of symptoms.

So, the correct answer is D, after analyzing all choices.

A. "Do not stand still for prolonged periods of time.”. B. "Even if you feel fine, do not stop taking the drugs.”. C. "Eat foods with low potassium.”. D. "Upon waking up in the morning, get out of bed slowly.”. .

Correct Answer is C

Explanation

Choice A rationale:

This is correct. Standing still for prolonged periods can cause blood to pool in the legs, increasing blood pressure.

Choice B rationale:

This is also correct. Stopping the medication abruptly can cause a rebound increase in blood pressure.

Choice C rationale:

This is incorrect. Furosemide is a diuretic that can cause the body to lose potassium, so it’s important to consume potassium-rich foods.

Choice D rationale:

This is correct. Furosemide can cause orthostatic hypotension, a form of low blood pressure that happens when you stand up from sitting or lying down.

So, the correct answer is Choice C, after analyzing all choices.

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A patient who has had chest pain for several hours is admitted with a diagnosis of rule out acute myocardial infarction (AMI). Which laboratory test is most specific for the nurse to monitor in determining whether the patient has had an AMI?.

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient is admitted to the emergency department and diagnosed as having an ST-segment-elevation myocardial infarction (STEMI). Which question would the nurse ask to determine whether the patient is a candidate for thrombolytic therapy?.

Correct Answer is D

Explanation

A nurse is supervising a new graduate who is providing discharge teaching to a patient diagnosed with hypertension. While teaching a patient about their newly prescribed diuretic (furosemide), which of the following statements made by the new graduate requires correction by the supervising nurse?.

Correct Answer is C

Explanation

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