a client is admitted with a possible myocardial infarction which laboratory test result is most indicative of a myocardial infarction
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Nursing Elites

HESI RN

HESI 799 RN Exit Exam

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

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. To reduce the risk of being named in a malpractice lawsuit, which action is most important for the nurse to take?

Correct answer: A

Rationale: Adhering consistently to standards of care is crucial for nurses to reduce the risk of being named in a malpractice lawsuit. Following established protocols and guidelines ensures that the care provided is safe and effective. Thoroughly documenting all client interactions is also essential to support the care provided and to have a record of the interventions. Building a good rapport with clients is important for communication and trust but does not directly reduce the risk of malpractice. Working closely with the healthcare team is valuable for collaboration but might not directly impact the risk of malpractice unless it relates to following standards of care.

3. When a client with a history of atrial fibrillation is admitted with a new onset of confusion, which diagnostic test should the nurse anticipate preparing the client for first?

Correct answer: A

Rationale: The correct answer is an Electrocardiogram (ECG). When a client with a history of atrial fibrillation presents with new-onset confusion, an ECG is crucial to assess for cardiac ischemia, which could be a potential cause of the confusion. A chest X-ray (Choice B) is not typically the first-line diagnostic test for evaluating confusion in a client with atrial fibrillation. Arterial blood gases (ABGs) (Choice C) are more useful in assessing oxygenation and acid-base balance rather than the cause of confusion in this scenario. While an echocardiogram (Choice D) provides valuable information about cardiac structure and function, it is usually not the initial diagnostic test needed in the evaluation of acute confusion in a client with atrial fibrillation.

4. A client with chronic renal failure (CRF) is placed on a protein-restricted diet. Which nutritional goal supports this dietary change?

Correct answer: A

Rationale: The correct answer is A: Reduce production of urea nitrogen (BUN). A protein-restricted diet is essential for clients with chronic renal failure to decrease the production of urea nitrogen, as the kidneys cannot effectively excrete it. This helps in managing the accumulation of waste products in the body. Choices B, C, and D are incorrect. Choice B is not directly related to a protein-restricted diet but focuses on managing potassium levels. Choice C is not a direct nutritional goal of a protein-restricted diet but aims at supporting kidney function. Choice D is not a target of a protein-restricted diet but relates more to managing protein loss in the urine.

5. A client with chronic liver disease is admitted with ascites and jaundice. Which assessment finding is most concerning?

Correct answer: D

Rationale: Confusion and altered mental status are concerning in a client with chronic liver disease, as they may indicate hepatic encephalopathy, a serious complication that requires immediate intervention. Enlarged spleen (choice A) can be a common finding in liver disease due to portal hypertension but may not be as acute as hepatic encephalopathy. Increased abdominal girth (choice B) is typically seen in ascites, which is already present in this client. Yellowing of the skin (choice C) is a manifestation of jaundice, also a known symptom in liver disease but not as acute as confusion and altered mental status.

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