Final answer:
To calculate the dose of insulin for a patient, convert the patient's weight to kilograms, calculate the total units of insulin needed based on the physician's order, then determine the volume of the insulin solution to administer based on the insulin concentration.
Step-by-step explanation:
The question involves calculating the dose of insulin to be administered to a patient who weighs 630 grams and has a glucose level of 208 mg/dL, based on a physician's order of 0.2 units/kg for glucose levels greater than 200 mg/dL, and given insulin concentration of 0.5 units/mL.
To administer the correct insulin dose, first, the patient's weight must be converted from grams to kilograms. Since there are 1000 grams in one kilogram, the patient's weight is 0.63 kg.
Next, using the physician's order of 0.2 units of insulin per kilogram, the total units needed are calculated by multiplying the patient's weight in kg by the prescribed units per kg:
- 0.63 kg × 0.2 units/kg = 0.126 units of insulin.
Now, we should determine the volume of the insulin solution to be administered using the available insulin concentration of 0.5 units/mL.
- 0.126 units × (1 mL / 0.5 units) = 0.252 mL.
The dose of insulin to be administered is 0.252 mL, which should be recorded as 0.25 mL when rounding to two decimal places.