Insulin Dosage Calculation based on Sliding Scale

In this problem, we need to calculate the total amount of insulin to be administered to a patient based on a physician's order and a sliding scale for blood sugar.

Let's identify the three components of the total dosage. First, the fixed order includes forty units of N-P-H insulin. Second, it includes twenty five units of regular insulin. Third, we must add the extra regular insulin from the sliding scale based on the patient's blood sugar reading.

The patient's finger stick blood sugar is two hundred and thirteen milligrams per deciliter. Let's look at the sliding scale provided in the table to find the corresponding additional dosage.

Looking at the table, two hundred and thirteen falls into the range of two hundred and one to two hundred and twenty milligrams per deciliter. For this specific range, the scale indicates an additional four units of regular insulin.