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. When preparing to insert a nasogastric (NG) tube for a client admitted to the surgical unit with symptoms of a possible intestinal obstruction, which intervention should the nurse implement?

• A. Elevate the head of the bed 60 to 90 degrees
• B. Administer an antiemetic
• C. Prepare the client for surgery
• D. Provide oral care

Correct answer: A

Rationale: Elevating the head of the bed to 60 to 90 degrees is essential when inserting an NG tube. This position helps facilitate the passage of the tube through the esophagus into the stomach and reduces the risk of aspiration. Administering an antiemetic may be necessary to control nausea or vomiting, but it is not the primary intervention when inserting an NG tube. Preparing the client for surgery is not indicated solely for the insertion of an NG tube. Providing oral care is important for maintaining oral hygiene but is not directly related to inserting an NG tube.

3. The nurse is caring for a client with diabetic ketoacidosis (DKA). Which intervention is most important?

• A. Administer insulin as prescribed.
• B. Monitor the client's urine output.
• C. Assess the client's level of consciousness.
• D. Obtain an arterial blood gas (ABG) sample.

Correct answer: A

Rationale: Administering insulin is the most crucial intervention in managing diabetic ketoacidosis. Insulin helps reduce blood glucose levels and correct metabolic acidosis, which are the primary issues in DKA. Monitoring urine output (Choice B) is important but not as critical as administering insulin. Assessing the client's level of consciousness (Choice C) is essential but does not directly address the underlying cause of DKA. Obtaining an arterial blood gas sample (Choice D) can provide valuable information but is not as urgent as administering insulin to address the immediate metabolic imbalance.

4. The nurse is preparing to administer an enema to a client with severe constipation. Which position is most appropriate for the client?

• A. Supine with the head elevated 30 degrees
• B. Left lateral with the right leg flexed
• C. Sims’ position with the right leg flexed
• D. Prone position with the head turned to the side

Correct answer: C

Rationale: Sims’ position with the right leg flexed is the most appropriate position for administering an enema to a client with severe constipation. This position helps in promoting the flow of the enema solution into the rectum and facilitates the evacuation of stool. Supine position with the head elevated 30 degrees (Choice A) is not ideal for administering an enema as it does not facilitate the flow of the solution. Left lateral position with the right leg flexed (Choice B) is not the best choice for administering an enema. Prone position with the head turned to the side (Choice D) is also not suitable for administering an enema as it does not assist in the proper administration and retention of the solution.

5. A client with a history of chronic kidney disease is scheduled for a renal biopsy. Which laboratory value should the nurse report to the healthcare provider before the procedure?

• A. Serum creatinine of 1.8 mg/dl
• B. Prothrombin time of 18 seconds
• C. Hemoglobin of 9 g/dl
• D. Platelet count of 90,000/mm3

Correct answer: D

Rationale: A platelet count of 90,000/mm3 is low and concerning for a client scheduled for a renal biopsy, as it increases the risk of bleeding. Thrombocytopenia, indicated by a low platelet count, can lead to impaired blood clotting, posing a significant risk of bleeding during or after the biopsy procedure. Elevated serum creatinine levels may be expected in chronic kidney disease but are not directly related to bleeding risk during a renal biopsy. Prothrombin time and hemoglobin levels are not as directly relevant to the bleeding risk associated with a renal biopsy as platelet count.

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