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.