Answer :
The nurse should administer 1.2 ml of nalbuphine to the client who weighs 85 kg.
First, let's determine the appropriate dose for the client's weight. The prescribed dosage is 10 mg per 70 kg:
- 85 kg / 70 kg = 1.2143.
- 1.2143 * 10 mg = 12.143 mg.
The nurse has nalbuphine available as 10 mg/1 ml, so to find the volume in ml to administer:
- 12.143 mg / 10 mg/ml = 1.2143 ml.
Rounded to 1 decimal place, the nurse should administer 1.2 ml of nalbuphine to the client.