A nurse is caring for a client who has a pulmonary embolism and has a new prescription for enoxaparin 1.5 mg/kg/dose subcutaneous every 12 hr. The client weighs 245 lbs. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Choice A reason: To calculate the dose, convert pounds to kilograms: 245 lbs ÷ 2.2 = 111.36 kg. Multiply by 1.5 mg/kg: 111.36 × 1.5 = 167.04 mg, which rounds to 167 mg. This is the correct dose per administration. Choice B reason: 165 mg is slightly below the calculated dose and would underdose the client. Choice C reason: 163 mg is further below the required dose and does not meet the therapeutic range. Choice D reason: 170 mg slightly exceeds the calculated dose and may increase bleeding risk.