Problem: A client is ordered morphine sulphate 6 mg IM q4h PRN for pain. The medication is available 4 mg per mL. How many mL of medication should the nurse administer for each single dose? Round to the nearest tenth. A client is ordered morphine sulphate 6 mg IM q4h PRN for pain. The medication is available 4 mg per mL. How many mL of medication should the nurse administer for each single dose? Need Online Tutoring? Round to the nearest tenth. 3.0 0.7 1.4 1.5