Nokea
A client with rheumatoid arthritis is prescribed methotrexate. Which laboratory value should the nurse monitor closely?
- A. White blood cell count of 10,000/mm³
- B. Hemoglobin of 12 g/dL
- C. Liver function tests
- D. Platelet count of 150,000/mm³
Correct Answer: C
Rationale: The correct answer is C: Liver function tests. Methotrexate can cause hepatotoxicity, making it essential to closely monitor liver function tests in clients receiving this medication. Monitoring white blood cell count, hemoglobin, or platelet count is not specifically required for methotrexate therapy and would not provide relevant information regarding potential adverse effects of the medication.
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While taking vital signs, a critically ill male client grabs the nurse's hand and asks the nurse not to leave. What action is best for the nurse to take?
- A. Pull up a chair and sit beside the client's bed.
- B. Reassure the client that you will return shortly.
- C. Ask another nurse to stay with the client.
- D. Continue taking vital signs and then leave the room.
Correct Answer: A
Rationale: The best action for the nurse to take in this situation is to pull up a chair and sit beside the client's bed. By doing so, the nurse can provide emotional support and comfort to the critically ill patient who is feeling vulnerable. Sitting with the client also shows empathy and a willingness to listen to the client's needs. Reassuring the client that the nurse will return shortly (Choice B) may not address the immediate need for emotional support. Asking another nurse to stay with the client (Choice C) may not establish the same level of connection and comfort as sitting with the client personally. Continuing to take vital signs and then leaving the room (Choice D) disregards the client's emotional needs in that moment.
The client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value is most concerning?
- A. Serum potassium of 6.0 mEq/L
- B. Serum creatinine of 2.5 mg/dL
- C. Serum calcium of 8.0 mg/dL
- D. Hemoglobin of 10 g/dL
Correct Answer: A
Rationale: A serum potassium level of 6.0 mEq/L is most concerning in a client with ESRD scheduled for hemodialysis as it indicates hyperkalemia, which can lead to serious cardiac complications such as arrhythmias and cardiac arrest. Immediate intervention is required to lower potassium levels.
Choice B, serum creatinine of 2.5 mg/dL, is elevated but expected in ESRD due to impaired kidney function. Choice C, serum calcium of 8.0 mg/dL, is within the normal range and not typically a priority in this situation. Choice D, hemoglobin of 10 g/dL, is slightly low but not an immediate concern for a client scheduled for hemodialysis unless significantly lower and causing severe symptoms.
A client with chronic obstructive pulmonary disease (COPD) is admitted with pneumonia. Which intervention should the nurse implement first?
- A. Administer oxygen therapy as prescribed.
- B. Elevate the head of the bed.
- C. Obtain a sputum culture.
- D. Administer antibiotics as prescribed.
Correct Answer: A
Rationale: In a client with COPD admitted with pneumonia, the priority intervention should be to administer oxygen therapy as prescribed. This is crucial to improve oxygenation, especially in a client with compromised respiratory function. Elevating the head of the bed can help with breathing but is secondary to ensuring adequate oxygenation. Obtaining a sputum culture and administering antibiotics are important steps in the treatment of pneumonia but come after ensuring adequate oxygen supply.
The nurse is assessing a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should the nurse monitor closely?
- A. Serum potassium level
- B. Hemoglobin level
- C. White blood cell count
- D. Serum calcium level
Correct Answer: A
Rationale: In a client with chronic kidney disease (CKD) receiving erythropoietin therapy, the nurse should closely monitor the serum potassium level. Erythropoietin therapy can increase red blood cell production, leading to a higher demand for potassium. Monitoring potassium levels is crucial to prevent hyperkalemia, a potential risk associated with this therapy. Hemoglobin level (Choice B) is important to assess the effectiveness of erythropoietin therapy, but monitoring potassium levels takes precedence due to the risk of hyperkalemia. White blood cell count (Choice C) and serum calcium level (Choice D) are not directly affected by erythropoietin therapy in the context of chronic kidney disease.
A client with a history of chronic kidney disease (CKD) is admitted with hyperkalemia. Which clinical finding is most concerning?
- A. Peaked T waves on the ECG
- B. Bradycardia
- C. Muscle weakness
- D. Decreased deep tendon reflexes
Correct Answer: A
Rationale: Peaked T waves on the ECG are the most concerning finding in a client with hyperkalemia. Hyperkalemia can lead to serious cardiac complications, including arrhythmias and cardiac arrest. Peaked T waves are a classic ECG finding associated with hyperkalemia and indicate the need for immediate intervention. Bradycardia, muscle weakness, and decreased deep tendon reflexes can also be seen in hyperkalemia, but the presence of peaked T waves signifies a higher risk of cardiac events, making it the most concerning finding in this scenario.