Template:Maintenance Fluids Calculator: Difference between revisions

Revision as of 15:50, 21 March 2026

Interactive Maintenance IV Fluids calculator (4-2-1 / Holliday-Segar rule). Requires the calculator gadget. Usage: {{Maintenance Fluids Calculator}}

Maintenance IV Fluids (4-2-1 Rule)
Parameter	Value
Patient Weight (kg)
Maintenance Rate
Hourly Rate	mL/hr
Daily Volume	mL/day

References
Holliday MA, Segar WE. The maintenance need for water in parenteral fluid therapy. Pediatrics. 1957;19(5):823-832. PMID 13431307. 4-2-1 Rule: 4 mL/kg/hr for first 10 kg + 2 mL/kg/hr for next 10 kg + 1 mL/kg/hr for each kg above 20 kg.

@@ Line 15: / Line 15: @@
 |-
 | '''Hourly Rate'''
-| style="font-size:18px; font-weight:bold;" | {{calculator|id=mf_hr|type=plain|formula=Math.min(mf_wt,10)*4+Math.max(0,Math.min(mf_wt-10,10))*2+Math.max(0,mf_wt-20)*1|decimals=0|NaN-text=—|style=min-width:4ch;display:inline-block}} mL/hr
+| style="font-size:18px; font-weight:bold;" | {{calculator|id=mf_hr|type=plain|formula=min(mf_wt,10)*4+max(0,min(mf_wt-10,10))*2+max(0,mf_wt-20)*1|decimals=0|NaN-text=—|style=min-width:4ch;display:inline-block}} mL/hr
 |-
 | '''Daily Volume'''
-| style="font-size:18px; font-weight:bold;" | {{calculator|id=mf_day|type=plain|formula=(Math.min(mf_wt,10)*4+Math.max(0,Math.min(mf_wt-10,10))*2+Math.max(0,mf_wt-20)*1)*24|decimals=0|NaN-text=—|style=min-width:4ch;display:inline-block}} mL/day
+| style="font-size:18px; font-weight:bold;" | {{calculator|id=mf_day|type=plain|formula=(min(mf_wt,10)*4+max(0,min(mf_wt-10,10))*2+max(0,mf_wt-20)*1)*24|decimals=0|NaN-text=—|style=min-width:4ch;display:inline-block}} mL/day
 |}
 {| class="wikitable" style="width:100%; margin-top:4px; font-size:90%;"