The nurse is caring for a client who is admitted to the hospital in acute renal failure. The appearance of a U wave on the electrocardiogram (ECG) should alert the nurse to check for which laboratory...

The nurse is caring for a client who is admitted to the hospital in acute renal failure. The appearance of a U wave on the electrocardiogram (ECG) should alert the nurse to check for which laboratory values?

1. Hyperkalemia

2. Hypokalemia

3. Hypernatremia

4. Hyponatremia

The nurse is caring for a client who is on hemodialysis. He has an AVF. Which of the following is expected when assessing the fistula?

1. Ecchymotic area

2. Enlarged veins

3. Pulselessness

4. Redness