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A child is prescribed an insulin infusion at 0.1 unit/kg/hr. The child weighs 36 kg. You have a syringe of insulin containing 50 units in 50 ml sodium chloride 0.9%. What rate will you set the infusion in ml/hr?

Question

A child is prescribed an insulin infusion at 0.1 unit/kg/hr. The child weighs 36 kg. You have a syringe of insulin containing 50 units in 50 ml sodium chloride 0.9%. What rate will you set the infusion in ml/hr?

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Solution

To calculate the rate of the insulin infusion, follow these steps:

  1. Calculate the total units of insulin needed per hour: 0.1 unit/kg/hr * 36 kg = 3.6 units/hr.

  2. Determine how many units of insulin are in 1 ml of the solution: 50 units/50 ml = 1 unit/ml.

  3. Calculate the rate of the infusion in ml/hr: 3.6 units/hr ÷ 1 unit/ml = 3.6 ml/hr.

So, you will set the infusion rate at 3.6 ml/hr.

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