A nurse is collecting data for a client who experienced a myocardial infarction prior to a cardiac arrest. Which of the following laboratory tests will identify early injury to the cardiac muscle?
Creatine kinase-myocardial band (CK-MB) test
Troponin T test
Brain natriuretic peptide (BNP) test
Creatine kinase (CK) test
The Correct Answer is B
A. Creatine kinase-myocardial band (CK-MB) test: While CK-MB is also a marker of myocardial injury, it is less specific than troponin and can be elevated in other conditions, such as muscle injury.
B. Troponin T test. The Troponin T test is highly specific and sensitive for myocardial injury and is considered the gold standard for diagnosing a myocardial infarction. Troponin levels rise within hours of cardiac muscle injury and remain elevated for days, providing an early and reliable indicator of cardiac muscle damage.
C. Brain natriuretic peptide (BNP) test. BNP levels are used to assess heart failure and do not indicate acute cardiac muscle injury.
D. Creatine kinase (CK) test. CK measures overall muscle injury, not specific to cardiac muscle.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is ["A","B","C","D"]
Explanation
A. Smoking: Smoking is a modifiable risk factor as quitting smoking reduces the risk of atherosclerosis.
B. Hypertension: High blood pressure can be managed through lifestyle changes and medication, making it a modifiable risk factor.
C. Hypercholesterolemia: High cholesterol levels can be controlled through diet, exercise, and medications, making it modifiable.
D. Obesity: Obesity is a modifiable risk factor, as weight loss through diet and exercise can reduce the risk of atherosclerosis.
E. Genetic predisposition: Genetic predisposition is non-modifiable, meaning individuals cannot change their inherited risk for atherosclerosis.
Correct Answer is C
Explanation
A. Advise the client to come into the office. The client needs immediate emergency intervention, not a routine office visit.
B. Advise the client to take an antacid. Chest pain unrelieved by nitroglycerin may indicate myocardial infarction; an antacid would not help.
C. Instruct the client to call 911. Persistent chest pain unrelieved by nitroglycerin warrants emergency attention due to potential heart attack.
D. Tell the client to take another nitroglycerin tablet in 15 min. The protocol allows taking an additional dose in 5 minutes, but emergency services should be called for unrelieved chest pain.