A nurse is preparing to administer heparin 8,000 units subcutaneous to a client. Available is heparin injection 10,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Calculation: Identify the desired dose. Desired dose = 8,000 units. Identify the available concentration. Available concentration = 10,000 units/mL. Calculate the volume to administer. Volume (mL) = Desired dose (units) / Available concentration (units/mL) = 8,000 units / 10,000 units/mL = 0.8 mL. Rounded to the nearest tenth: 0.8.