A client must take oral potassium supplements every day. The nurse explains to the client that the potassium supplements

  1. need to be stored in the refrigerator.
  2. should only be taken in the evening before bed.
  3. should be diluted in a glass of cold water or juice.
  4. need to be taken on an empty stomach.
Number 3 is correct.
Rationale: Oral potassium supplements can cause GI distress; they should be dissolved in a full glass of water or juice and taken close to mealtime, though the time of day does not matter. Taking them without food can cause additional GI distress. Potassium can be stored at room temperature.