IV Fluid Calculation Lab

Clinical Education · Pharmacology · Critical Care

IV Fluid Calculation Lab

Drip rates. Pump rates. Weight-based titration. Holliday-Segar. With an actual animated drip chamber that drips at your calculated rate, a vasopressor cockpit you can titrate, and reasonableness flagging on every result.

💧 Animated drip Pressor cockpit 👶 Holliday-Segar High-alert guardrails

💧 Animated Drip Chamber

Set the order. Pick the tubing. Watch the chamber actually drip at the calculated rate. Then toggle macrodrip vs microdrip — same order, wildly different gtt/min.

21 gtt/min 125 mL/hr

Volume (mL)

Time (hours)

Drop factor (gtt/mL)

10 15 20 60

10/15/20 = macrodrip · 60 = microdrip

Formula 1 (gravity):
gtt/min = (Volume × DropFactor) ÷ (Time × 60)

Formula 2 (pump):
mL/hr = Volume ÷ Hours

🎛️ Vasopressor & Sedation Cockpit

Pick a drug, set the patient weight, drag the dose. The pump rate updates live. Reasonableness checked against the NursingRidge drug DB — out-of-range and forbidden-route entries flagged.

Order

Drug

Patient weight (kg)

Dose (mcg/kg/min)

Typical: 0.01–1.5 mcg/kg/min

Pump readout

Drug —

Concentration —

Dose —

Weight —

— mL/hr

👶 Holliday-Segar (4-2-1) Maintenance Fluid

Drag the weight slider. Watch the 4-2-1 zones fill — first 10 kg at 100 mL/kg/day, second 10 kg at 50 mL/kg/day, every kg above 20 at 20 mL/kg/day. The hourly rate is the daily total ÷ 24.

kg patient weight

Weight (kg)

Daily maintenance —

Hourly rate (4-2-1) —

Pump program —

Weight breakdown

First 10 kg · 100 mL/kg/day · 4 mL/kg/hr — kg

Second 10 kg · 50 mL/kg/day · 2 mL/kg/hr — kg

Each kg over 20 · 20 mL/kg/day · 1 mL/kg/hr — kg

Educational use only. Verify every calculation against current institutional protocol, pharmacy, and FDA labeling before administration. The reasonableness seed is owned and edited by NursingRidge — not a substitute for licensed clinical decision support.