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NPH insulin and prescribed mealtime insulin

Pregnancy & gynaecology-specific. Every dose row is source-referenced; verify against institutional protocols.

NPH insulin and prescribed mealtime insulinEMERGENCY KITEndocrine replacement

Regimens checked: 2026-10-17. Each indication has its own preparation, limits and safety checks.

NPH insulin and prescribed mealtime insulin: indication-specific regimens
IndicationDoseRouteFrequencyDuration / preparationMaximumMonitoring / cautions
Pregnancy diabetes: match basal and meal insulin to the glucose pattern
Patient-specific dose in UNITS; NPH once or twice daily, with separately prescribed meal doses if needed. A universal 0.3-units/kg starting prescription is not appropriate for every GDM pattern
Subcutaneous only
NPH once/twice daily; short-acting insulin before meals according to its formulation
Continue and titrate throughout pregnancy; reduce/review promptly after birth. Type 1 diabetes always requires basal insulin · Use U-100 insulin with a matching insulin syringe/pen. Gently resuspend NPH until uniform. NPH is NEVER IV. If mixing compatible human insulins, draw clear short-acting insulin before cloudy NPH
  • The linked NICE NG3 guidance provides pregnancy targets and treatment selection. The dose must be prescribed individually; this is an explicit dosing constraint, not a missing fixed dose.
No universal fixed maximum: titrate the prescribed units against glucose and hypoglycaemia, with the diabetes team
Monitor
  • Record the actual basal/meal doses in the patient plan; monitor fasting, premeal/postmeal glucose or CGM
  • Review patterns rather than a single high value; teach injection technique, recognition/treatment of hypoglycaemia and sick-day ketone testing
  • NICE targets, if achievable without problematic hypoglycaemia: fasting <5.3 mmol/L, 1-h postmeal <7.8 or 2-h <6.4; keep glucose >4 mmol/L on insulin
Contraindications / cautions
  • Current hypoglycaemia requires treatment and dose review; do not omit basal insulin in type 1 diabetes
Pregnancy safety
Individualise insulin to the glucose pattern; do not use NPH intravenously.
Lactation
Compatible
MSFcheckedIN REVIEW