A nurse is caring for a client who came to the emergency department reporting chest pain. The provider suspects a myocardial infarction. While waiting for the troponin levels report, the client asks what this blood test will show.
Which of the following explanations should the nurse provide to the client?
Troponin is an enzyme that indicates damage to brain, heart, and skeletal muscle tissues.
Troponin is a heart muscle protein that appears in the bloodstream when there is damage to the heart.
Troponin is a protein that helps transport oxygen throughout the body.
Troponin is a lipid whose levels reflect the risk for coronary artery disease.
The Correct Answer is B
Choice a) is incorrect because troponin is not an enzyme, but a protein. Enzymes are molecules that speed up chemical reactions in the body. Troponin does not have this function.
Choice b) is correct because troponin is a protein that binds to calcium and regulates the contraction of heart muscle fibers. When the heart muscle is injured, such as in a myocardial infarction, troponin leaks into the bloodstream and can be detected by a blood test. The higher the level of troponin, the more severe the damage to the heart.
Choice c) is incorrect because troponin does not help transport oxygen throughout the body. That function is performed by hemoglobin, which is a protein found in red blood cells.
Choice d) is incorrect because troponin is not a lipid, but a protein. Lipids are fats that are used for energy storage and cell membrane formation. Troponin does not have these roles.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason: This is incorrect. Opioids are not indicated for a client who is emerging from a coma, as they can cause respiratory depression, sedation, and confusion. They may also mask the signs of increased intracranial pressure or neurological deterioration.
Choice B Reason: This is incorrect. Darkening the room may not be helpful for a client who is emerging from a coma, as it may increase their disorientation and agitation. The nurse should provide adequate lighting and orient the client to time, place, and person frequently.
Choice C Reason: This is incorrect. Applying restraints may worsen the restlessness and agitation of a client who is emerging from a coma, as they may perceive them as a threat or a restriction. Restraints may also increase the risk of injury, infection, or skin breakdown. The nurse should use restraints only as a last resort and with a physician's order.
Choice D Reason: This is correct. Reducing stimuli is an appropriate intervention for a client who is emerging from a coma, as it can help calm them and prevent sensory overload. The nurse should limit noise, visitors, and unnecessary procedures, and provide a quiet and comfortable environment.
Correct Answer is C
Explanation
Choice A Reason: This is incorrect. Pulse and blood pressure findings are not reliable indicators of pain, as they can be influenced by many other factors, such as anxiety, medication, or underlying conditions. They are also not sensitive enough to detect changes in pain intensity or relief.
Choice B Reason: This is incorrect. Scheduled treatments and client illness are not relevant parameters for assessing pain, as they do not reflect the current pain experience of the client. They may provide some clues about the possible causes or sources of pain, but they do not measure the pain itself.
Choice C Reason: This is correct. A self-report pain rating scale is the most valid and reliable parameter for assessing pain, as it reflects the subjective perception of the client. The nurse should use a simple and appropriate scale, such as a numeric or visual analog scale, and ask the client to point to the number or picture that best represents their pain level.
Choice D Reason: This is incorrect. Behavioral indicators and affect are useful parameters for assessing pain, especially when the client has difficulty communicating verbally, but they are not the first choice. They are more subjective and variable than self-report, and they may be influenced by cultural or personal factors. They should be used in conjunction with self-report, not instead of it.
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
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.