2025-07-22·8 min read·Pharmacology

Insulin Management for Diabetic Clients: NCLEX Review

Insulin types, administration, sick day rules, and hypoglycemia management for the NCLEX.

Insulin Administration

  • Rotate injection sites within the same body region
  • SubQ injection at 90° angle (45° for thin clients)
  • Do NOT massage injection site
  • Regular insulin is the ONLY insulin given IV
  • Draw clear (regular) before cloudy (NPH)

Hypoglycemia vs Hyperglycemia

  • Hypoglycemia (BG <70): Tremors, diaphoresis, tachycardia, confusion, hunger. Treat with 15g fast-acting carbs (4 oz juice, glucose tablets), recheck in 15 min
  • Hyperglycemia (BG >250): Polyuria, polydipsia, polyphagia, fruity breath (DKA). Treat with insulin, fluids

Sick Day Rules

  • Continue taking insulin (do NOT skip)
  • Check blood glucose every 4 hours
  • Drink plenty of fluids
  • If unable to eat, substitute with clear liquids containing carbs
  • Call provider if BG >300 or ketones present

Learn more at Endocrine Disorders cheat sheet and Endocrine Nursing deep dive.