The nurse has received the laboratory results for a patient who developed chest pain 4 hours ago and may be having a myocardial infarction. Which laboratory test result should be most helpful in indicating myocardial infarction?

Creatine kinase-MB (CK-MB)

B-type natriuretic peptide (BNP)

Myoglobin

Troponin

Answer and Explanation

The Correct Answer is D

A. CK-MB is a cardiac enzyme that rises in response to myocardial injury, but it is less specific and takes longer to rise than troponin.
B. BNP is associated with heart failure, not myocardial infarction.
C. Myoglobin is an early marker but is non-specific, as it rises with any muscle damage.
D. Troponin is the most specific and sensitive biomarker for myocardial infarction. It rises within 3-4 hours after myocardial injury and remains elevated for days, making it the most useful test for confirming an MI.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is A

Explanation

A. Thrombolytic therapy is the priority in managing an ST-elevated myocardial infarction (STEMI) when percutaneous coronary intervention (PCI) is not available. It helps dissolve the blood clot causing the blockage in the coronary artery.

B. Maintaining oxygen saturation is important, but the priority is to restore coronary blood flow.

C. The focus should be on stabilizing the heart rhythm, not specifically maintaining a high heart rate.

D. Diuretics are important in managing heart failure but are not the priority in acute STEMI management.

A. Spironolactone B. Furosemide C. Metoprolol D. Nitroglycerin

Correct Answer is B

Explanation

A. Spironolactone is a potassium-sparing diuretic, so it would not cause hypokalemia.

B. Furosemide is a loop diuretic that causes the kidneys to excrete potassium, leading to hypokalemia.

C. Metoprolol is a beta-blocker and does not directly affect potassium levels.

D. Nitroglycerin is a vasodilator and does not affect potassium levels.

View Question and Answer

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

The nurse has received the laboratory results for a patient who developed chest pain 4 hours ago and may be having a myocardial infarction. Which laboratory test result should be most helpful in indicating myocardial infarction?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is A

Explanation

A nurse is caring for a client who has heart failure and a potassium level of 2.4 mEq/L. The nurse should identify which of the following medications as the cause of the client's low potassium level?

Correct Answer is B

Explanation

A nurse enters a client's room and finds the client pulseless. The family has requested a do-not-resuscitate (DNR) order from the provider, but he has not written the order yet. Which of the following actions should the nurse take?

While close family members are visiting, a patient has a respiratory arrest, and resuscitation is started. Which action by the nurse is best?

A patient is having a cardiac evaluation to assess for possible heart failure and valvular disease. Which study best identifies heart function and measures the size of the cardiac chambers?

A patient was admitted for terminal heart failure and is now eligible for a transplant. The family wants everything possible done to maintain life. Which procedure might be offered to the patient for this condition to increase the patient's quality of life?

When treating hypertensive emergencies, the nurse identifies the most appropriate route of administration for antihypertensive agents as being which of the following?

The nurse is caring for a patient with a left subclavian central venous catheter (CVC) and a left radial arterial line. Which assessment finding by the nurse requires immediate action?

A patient who has been in the intensive care unit for 4 days has disturbed sensory perception from sleep deprivation. Which action should the nurse include in the plan of care?

A nurse is performing cardiopulmonary resuscitation (CPR) for an adult client who is unresponsive. The nurse should evaluate the client's circulation by palpating which of the following pulses?