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 C

Explanation

Choice A rationale:

Pericarditis is an inflammation of the pericardium and would not directly cause an S4 heart sound.

Choice B rationale:

Arterial obstruction or aneurysm would cause changes in blood flow, but not specifically an S4 heart sound.

Choice C rationale:

An S4 heart sound is an extra sound that is heard late in diastole just before S1. It occurs due to resistance to blood flow in an enlarged ventricle, often due to forceful atrial contraction to overcome ventricular resistance.

Choice D rationale:

An infectious valvular disorder could cause a variety of heart sounds, but not specifically an S42.

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

A. "I can expect nausea as a side effect of nitroglycerin.”. B. "I will store the medication in a well-lit room.”. C. "I will call an ambulance if I have pain 5 minutes after taking nitroglycerin.”. D. "I should only take nitroglycerin when I have chest pain.”.

Correct Answer is C

Explanation

Choice A rationale:

Nitroglycerin can cause side effects such as headache and dizziness, but nausea is not a common side effect.

Choice B rationale:

Nitroglycerin should be stored in a dark, cool place, not in a well-lit room.

Choice C rationale:

This is the correct answer. If chest pain is not relieved 5 minutes after taking nitroglycerin, it is recommended to call an ambulance.

Choice D rationale:

While nitroglycerin is taken when chest pain occurs, it can also be taken prior to activities that might cause chest pain.

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

While auscultating a patient's heart sounds, a nurse detects a fourth heart sound (S4). The nurse understands that this finding possibly indicates:.

Correct Answer is C

Explanation

Which patient statement indicates that the nurse's teaching about sublingual nitroglycerin (Nitrostat) has been effective?.

Correct Answer is C

Explanation

A patient who has heart failure recently started taking digoxin in addition to furosemide and captopril. Which finding by the home health nurse is a priority to communicate to the health care provider?.

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?.

After receiving a change-of-shift report on four patients, which patient would the nurse assess first?.

The nurse obtains a health history from an older adult with a prosthetic mitral valve who has symptoms of infective endocarditis (IE). Which question by the nurse helps identify a risk factor for IE?.

After reviewing a patient's history, vital signs, physical assessment, and laboratory data, which information is most important for the nurse to communicate to the health care provider?.

In preparation for discharge, the nurse teaches a patient with chronic stable angina how to use the prescribed short-acting and long-acting nitrates. Which patient statement indicates that the teaching has been effective?.

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?.