A client is admitted to the emergency department with a suspected myocardial infarction. Which laboratory test should the nurse prioritize to confirm the diagnosis?
Serum creatinine
Troponin levels
Complete blood count
Blood glucose
The Correct Answer is B
Choice A reason: Serum creatinine assesses kidney function, not cardiac injury. While relevant for overall health, it does not confirm myocardial infarction. Troponin is specific to cardiac muscle damage, making it the priority test to diagnose acute coronary events in the emergency setting.
Choice B reason: Troponin levels are the gold standard for diagnosing myocardial infarction, as they rise within hours of cardiac muscle injury due to ischemia. High specificity for heart tissue makes troponin critical for confirming acute coronary syndrome, guiding urgent treatment in the emergency department.
Choice C reason: Complete blood count evaluates anemia or infection but is nonspecific for myocardial infarction. While useful for overall assessment, it does not detect cardiac injury. Troponin directly indicates heart muscle damage, making it the priority test for confirming the diagnosis.
Choice D reason: Blood glucose may be elevated in stress or diabetes but is not diagnostic for myocardial infarction. Cardiac-specific markers like troponin are essential for confirming heart injury, as glucose levels lack specificity for acute coronary events, making them secondary.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Imbalanced nutrition due to anorexia and dysphagia is significant in esophageal cancer, as it risks weight loss and weakness. However, pain at 8/10 is an acute, distressing symptom requiring immediate relief to improve quality of life, making it the priority over nutritional deficits.
Choice B reason: Risk for aspiration from dysphagia is a concern in esophageal cancer, as tumor obstruction can cause swallowing issues. While serious, aspiration is a potential risk, whereas severe pain is an immediate, actual problem, making pain management the priority to alleviate current suffering.
Choice C reason: Anxiety and grieving are valid in esophageal cancer due to its prognosis, but a pain level of 8/10 is an urgent physiological need. Addressing pain first improves the client’s ability to cope with psychological distress, prioritizing physical comfort over emotional concerns.
Choice D reason: Chronic pain from tumor-related tissue destruction, rated 8/10, is the priority, as severe pain causes significant distress and impairs function. Effective pain management enhances comfort, facilitates other interventions, and addresses the client’s immediate suffering, making it the most urgent nursing problem.
Correct Answer is B
Explanation
Choice A reason: Difficulty with urination is not a primary concern for pyridostigmine, a cholinesterase inhibitor used in myasthenia gravis to enhance neuromuscular transmission. While cholinergic side effects may include urinary urgency, this is not a pre-administration priority compared to oral intake, which affects absorption and efficacy.
Choice B reason: Recent oral intake is critical before administering pyridostigmine, as food can delay its absorption, reducing effectiveness in myasthenia gravis. Taking it 30–60 minutes before or 2 hours after meals ensures optimal plasma levels, improving muscle strength, making this the priority information to obtain.
Choice C reason: Trouble sleeping is not directly relevant to pyridostigmine administration. While cholinergic side effects like diarrhea may disrupt sleep, this is a secondary concern. Ensuring proper timing with oral intake is critical for therapeutic efficacy, as absorption impacts symptom control in myasthenia gravis.
Choice D reason: Unexplained weight loss may indicate myasthenia gravis progression or other issues but is not a pre-administration concern for pyridostigmine. Timing with oral intake directly affects the drug’s pharmacokinetics, ensuring effective muscle strength improvement, making weight loss less urgent to assess before dosing.
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.
