Ordered: an insulin mix—Humulin R 4 units, subcut AM and PM; Humulin N 26 units, 30 minutes before meals
a. Is Humulin N a rapid-, intermediate-, or long-acting insulin?
b. Which type of insulin should the nurse withdraw first for the mix: Humulin R or Humulin N? State the reason for this decision.
c. Mark the total dose. Indicate the Humulin R and Humulin N doses with arrows.
a. Intermediate
b. The short/rapid acting Humulin R must be withdrawn first to protect it from contamination with a longer acting insulin. Contamination could change the action of the regular insulin.
c. First arrow shows 4 units drawn to Humulin R, total dose shown with second arrow at 30 units when Humulin N dose is added.
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