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 caring for a client with diabetic ketoacidosis (DKA). Which laboratory value requires immediate intervention?

• A. Serum glucose of 300 mg/dL
• B. Serum potassium of 4.5 mEq/L
• C. Serum bicarbonate of 15 mEq/L
• D. Serum pH of 7.28

Correct answer: D

Rationale: A serum pH of 7.28 indicates metabolic acidosis in a client with diabetic ketoacidosis (DKA), requiring immediate intervention. In DKA, the body produces excess ketones, leading to acidosis. Monitoring and correcting the pH level is crucial in managing DKA. Serum glucose levels may be high in DKA, but the immediate concern is correcting the acidosis to prevent complications. Serum potassium and bicarbonate levels are also important but not as immediately critical as correcting the acidosis in DKA.

3. A client with heart failure is receiving digoxin (Lanoxin) and furosemide (Lasix). Which assessment finding requires immediate intervention?

• A. Heart rate of 60 beats per minute
• B. Apical pulse of 58 beats per minute
• C. Presence of a new murmur
• D. Blood pressure of 100/60 mmHg

Correct answer: C

Rationale: The correct answer is C. The presence of a new murmur in a client with heart failure receiving digoxin and furosemide is concerning as it may indicate valvular problems or other complications that require immediate intervention. A heart rate of 60 beats per minute and an apical pulse of 58 beats per minute are within normal limits for a client with heart failure on these medications. A blood pressure of 100/60 mmHg, while slightly low, may be expected due to the diuretic effect of furosemide and may not require immediate intervention unless the client is symptomatic.

4. In caring for a client with a PCA infusion of morphine sulfate through the right cephalic vein, the nurse assesses that the client is lethargic with a blood pressure of 90/60 mm Hg, a pulse rate of 118 beats per minute, and a respiratory rate of 8 breaths per minute. What assessment should the nurse perform next?

• A. Note the appearance and patency of the client's peripheral IV site.
• B. Palpate the volume of the client's right radial pulse.
• C. Auscultate the client's breath sounds bilaterally.
• D. Observe the amount and dose of morphine in the PCA pump syringe.

Correct answer: D

Rationale: In this scenario, the client is presenting with signs of potential opioid overdose, such as lethargy, hypotension, tachycardia, and bradypnea. The next assessment the nurse should perform is to observe the amount and dose of morphine in the PCA pump syringe. This evaluation is crucial in determining if the client is receiving an excessive amount of morphine, leading to the observed symptoms. Checking the PCA pump syringe will provide essential information to address the client's condition promptly and prevent further complications. Choices A, B, and C are not the priority in this situation as they do not directly address the potential cause of the client's symptoms related to morphine administration.

5. A female client has been taking a high dose of prednisone, a corticosteroid, for several months. After stopping the medication abruptly, the client reports feeling 'very tired'. Which nursing intervention is most important for the nurse to implement?

• A. Measure vital signs
• B. Auscultate breath sounds
• C. Palpate the abdomen
• D. Observe the skin for bruising

Correct answer: A

Rationale: The correct answer is to measure vital signs. Abrupt withdrawal of exogenous corticosteroids can precipitate adrenal insufficiency, potentially leading to shock. Monitoring vital signs is crucial in identifying any signs of adrenal insufficiency, such as hypotension or tachycardia. Auscultating breath sounds (choice B) may be important in other situations, such as respiratory conditions, but it is not the priority in this case. Palpating the abdomen (choice C) and observing the skin for bruising (choice D) are not directly related to the potential complications of corticosteroid withdrawal and adrenal insufficiency.

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