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. The nurse is assisting the mother of a child with phenylketonuria (PKU) to select foods that are in keeping with the child's dietary restrictions. Which foods are contraindicated for this child?

• A. Wheat products
• B. Foods sweetened with aspartame
• C. High-fat foods
• D. High-calorie foods

Correct answer: B

Rationale: The correct answer is B: Foods sweetened with aspartame. Aspartame should not be consumed by a child with PKU because it is converted to phenylalanine in the body, which can be harmful to individuals with PKU. Choice A (Wheat products) is not specifically contraindicated for PKU. Choice C (High-fat foods) and Choice D (High-calorie foods) are not typically restricted in PKU diets unless they contain high levels of phenylalanine.

3. A client with heart failure is prescribed furosemide (Lasix). Which assessment finding requires immediate intervention?

• A. Heart rate of 60 beats per minute
• B. Blood pressure of 100/60 mmHg
• C. Crackles in the lungs
• D. Presence of a new murmur

Correct answer: C

Rationale: The correct answer is C. Crackles in the lungs indicate fluid overload, a common issue in heart failure patients. Immediate intervention is necessary to prevent worsening heart failure symptoms and potential complications. A heart rate of 60 beats per minute and a blood pressure of 100/60 mmHg are within normal ranges for many individuals and do not typically require immediate intervention in this context. The presence of a new murmur may be important to monitor but is not the priority when crackles in the lungs suggest fluid overload.

4. What is the first action the nurse should implement for a client admitted with acute pancreatitis?

• A. Administer intravenous fluids as prescribed
• B. Administer pain medication as prescribed
• C. Place the client on NPO status
• D. Assess the client's abdomen for distention

Correct answer: C

Rationale: Placing the client on NPO status is the priority action for a client with acute pancreatitis. This step is crucial to rest the pancreas, prevent pancreatic stimulation, and decrease enzyme production. By withholding oral intake, the digestive system is given a chance to rest and recover. Administering intravenous fluids may be necessary but should come after placing the client on NPO status. Pain medication can be administered once the client is stabilized. Assessing the client's abdomen for distention is important but is not the initial priority in managing acute pancreatitis.

5. A client with end-stage renal disease (ESRD is scheduled for hemodialysis. Which laboratory value should the nurse monitor closely before the procedure?

• A. Serum creatinine
• B. Serum potassium
• C. Serum sodium
• D. Hemoglobin

Correct answer: B

Rationale: Before hemodialysis in a client with end-stage renal disease (ESRD), monitoring serum potassium closely is crucial. ESRD patients are at risk of hyperkalemia, which can lead to severe cardiac complications. Checking serum potassium levels helps in assessing and managing this electrolyte imbalance. Serum creatinine (Choice A) is a marker of kidney function but is not the most critical value to monitor before hemodialysis. Serum sodium (Choice C) may be affected in renal disease, but potassium is a more crucial electrolyte to monitor. Hemoglobin (Choice D) is essential for assessing anemia in ESRD but is not the primary focus before hemodialysis.

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