Nursing Elites

1. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?

• A. Serum creatine kinase (CK)
• B. Serum troponin
• C. Serum myoglobin
• D. C-reactive protein (CRP)

Correct answer: B

Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.

2. A young adult male is admitted to the emergency department with diabetic ketoacidosis (DKA). His pH is 7.25, HCO3 is 12 mEq/L, and blood glucose is 310 mg/dl. Which action should the nurse implement?

• A. Infuse sodium chloride 0.9% (normal saline)
• B. Prepare an emergency dose of glucagon
• C. Determine the last time the client ate
• D. Check urine for ketone bodies with a dipstick

Correct answer: A

Rationale: In DKA, restoring fluid balance with sodium chloride is a priority to address the dehydration and electrolyte imbalances present in this condition. Choice B, preparing an emergency dose of glucagon, is incorrect because DKA is characterized by insulin deficiency, not glucagon deficiency. Choice C, determining the last time the client ate, is not the immediate priority in managing DKA. Choice D, checking urine for ketone bodies with a dipstick, may help confirm the diagnosis of DKA but is not the most critical intervention at this time.

3. The nurse is assessing a client with left-sided heart failure. Which finding requires immediate intervention?

• A. Shortness of breath
• B. Jugular venous distention
• C. Crackles in the lungs
• D. Peripheral edema

Correct answer: C

Rationale: Crackles in the lungs indicate pulmonary congestion in a client with left-sided heart failure and require immediate intervention to prevent respiratory failure. Crackles suggest fluid accumulation in the lungs, leading to impaired gas exchange and potentially respiratory distress. Shortness of breath, jugular venous distention, and peripheral edema are common manifestations of heart failure but do not directly indicate acute respiratory compromise like crackles in the lungs do.

4. In determining the client position for insertion of an indwelling urinary catheter, it is most important for the nurse to recognize which client condition?

• A. High urinary pH
• B. Abdominal ascites
• C. Orthopnea
• D. Fever

Correct answer: C

Rationale: The correct answer is C: Orthopnea. If the client is orthopneic, the nurse needs to adapt the insertion position that does not place the client in a supine position. This means the head of the bed should be elevated as much as possible to facilitate catheter insertion without compromising the client's breathing. High urinary pH (choice A) is not directly relevant to the insertion position of a urinary catheter. Abdominal ascites (choice B) may impact the procedure due to abdominal distension but is not as crucial as orthopnea. Fever (choice D) does not specifically affect the client's position for urinary catheter insertion.

5. The nurse is caring for a client with end-stage renal disease (ESRD) who is scheduled for hemodialysis. Which clinical finding is most concerning?

• A. Blood pressure of 110/70 mmHg
• B. Heart rate of 110 beats per minute
• C. Fever of 100.4°F
• D. Respiratory rate of 24 breaths per minute

Correct answer: C

Rationale: The correct answer is C. A fever of 100.4°F is most concerning in a client with ESRD scheduled for hemodialysis because it may indicate an underlying infection that requires immediate attention. Elevated body temperature can be a sign of systemic infection, which can quickly worsen in individuals with compromised renal function. Monitoring for infection is crucial in ESRD patients to prevent complications. Choices A, B, and D are not as immediately concerning in this context. While variations in blood pressure, heart rate, and respiratory rate should be monitored, they are not as indicative of a potentially severe issue as an unexplained fever in this scenario.

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