Maintenance fluids

Maintenance only. Add replacement for ongoing losses; resuscitation follows a separate algorithm.

• Patient group

  Standard (25–30 mL/kg/day)Older/frail, renal or cardiac impairment, malnourished (20–25 mL/kg/day)
• Weight (ideal body weight if obese)kg

Source: NICE CG174 — Intravenous fluid therapy in adults in hospital

For healthcare professionals, as an aid to clinical judgement — not a substitute for it. Follow your local policy and ask a senior when in doubt.