The client in end-stage renal disease is receiving oral Kayexalate, a cation exchange resin. Which assessment data indicates the medication is not effective? 1. The client’s serum potassium level is...

The client in end-stage renal disease is receiving oral Kayexalate, a cation exchange resin. Which assessment data indicates the medication is not effective?

1. The client’s serum potassium level is 5.8 mEq/L.

2. The client’s serum sodium level is 135 mEq/L.

3. The client’s serum potassium level is 4.2 mEq/L.

4. The client’s serum sodium level is 147 mEq/L.