Question

Gentamycin 5 mg / kg is ordered for a 56-year-old man who is 5'11" and 225 lb. Use the IBW. What dose of Gentamycin should this patient receive?

Answer 1

To calculate the dose of Gentamycin for this patient, we need to use the Ideal Body Weight (IBW) formula.

Step-by-step explanation:

To calculate the dose of Gentamycin for this patient, we need to use the Ideal Body Weight (IBW) formula. The IBW formula for men is: IBW = 50 kg + 2.3 kg * (height in inches - 60). Using this formula, we can calculate the patient's IBW as follows: IBW = 50 kg + 2.3 kg * (71 inches - 60) = 50 kg + 2.3 kg * 11 inches = 50 kg + 25.3 kg ≈ 75.3 kg.

Next, we can calculate the total dose of Gentamycin using the prescribed dose of 5 mg/kg. The patient's weight in kg is 225 lb * 0.4536 kg/lb = 102.17 kg. Therefore, the patient should receive a dose of Gentamycin equal to: 5 mg/kg * 75.3 kg = 376.5 mg.

Therefore, the patient should receive a dose of 376.5 mg of Gentamycin.