Nursing Elites

1. A client with chronic heart failure is receiving furosemide (Lasix). Which laboratory value requires immediate intervention?

• A. Serum potassium of 3.0 mEq/L
• B. Serum sodium of 135 mEq/L
• C. Serum creatinine of 1.5 mg/dl
• D. Blood glucose of 200 mg/dl

Correct answer: A

Rationale: A serum potassium level of 3.0 mEq/L requires immediate intervention in a client receiving furosemide. Furosemide can cause potassium loss, leading to hypokalemia, which can be dangerous, especially in patients with heart failure. Hypokalemia can predispose the client to cardiac dysrhythmias, weakness, and other complications. Therefore, prompt intervention is necessary to prevent these adverse effects. Choice B (Serum sodium of 135 mEq/L) is within the normal range and does not require immediate intervention. Choice C (Serum creatinine of 1.5 mg/dl) may indicate kidney dysfunction but does not pose an immediate threat to the client's safety. Choice D (Blood glucose of 200 mg/dl) may suggest hyperglycemia, which is important but not as urgent as addressing hypokalemia in a client with heart failure receiving furosemide.

2. 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.

3. The nurse is teaching a male client with multiple sclerosis how to empty his bladder using the Crede Method. When performing a return demonstration, the client applies pressure to the umbilical areas of his abdomen. What instruction should the nurse provide?

• A. Stroke the inner thigh below the perineum to initiate urinary flow
• B. Contract, hold, and then relax the pubococcygeal muscle
• C. Pour warm water over the external sphincter at the distal glans
• D. Apply downward manual pressure at the suprapubic regions

Correct answer: D

Rationale: The client is applying pressure in the wrong region (umbilical area) and should be instructed to apply pressure at the suprapubic area. Applying downward manual pressure at the suprapubic region helps in emptying the bladder effectively by assisting in pushing the urine out through the urethra. Choices A, B, and C are incorrect because they do not address the specific issue of applying pressure to help empty the bladder using the Crede Method.

4. A client with a history of hypertension is admitted with a blood pressure of 200/110 mmHg. Which intervention should the nurse implement first?

• A. Administer an antihypertensive medication as prescribed.
• B. Monitor the client's urine output.
• C. Administer oxygen therapy as prescribed.
• D. Obtain an arterial blood gas (ABG) sample.

Correct answer: D

Rationale: The correct answer is to obtain an arterial blood gas (ABG) sample. In a client with severe hypertension, it is essential to assess for metabolic or respiratory acidosis which can be done through an ABG sample. Administering antihypertensive medication without assessing the acid-base status of the client can lead to potential complications. Monitoring urine output and administering oxygen therapy are important interventions but are not the priority in this situation where the focus should be on assessing acidosis.

5. A client with chronic kidney disease (CKD) is receiving epoetin alfa (Epogen). Which laboratory value should the nurse monitor closely?

• A. Hemoglobin
• B. White blood cell count
• C. Serum potassium
• D. Serum creatinine

Correct answer: C

Rationale: The correct answer is C: Serum potassium. When a client with chronic kidney disease (CKD) is receiving epoetin alfa (Epogen), monitoring serum potassium levels closely is crucial. Epoetin alfa stimulates red blood cell production, which can lead to an increase in potassium levels. Hyperkalemia is a potential risk in these clients. Monitoring hemoglobin levels (choice A) is important in assessing the effectiveness of epoetin alfa therapy, but it is not the laboratory value that poses an immediate risk related to the medication. White blood cell count (choice B) and serum creatinine (choice D) are not directly affected by epoetin alfa therapy and are not the priority laboratory values to monitor in this case.

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