Tools
Calculators and practice tools that run right in the browser — acid-base, stroke scales, drip rates, and risk scores.
ABG Interpreter
Enter pH, PaCO₂, and HCO₃⁻ for an instant acid-base interpretation — add electrolytes for the anion gap, albumin correction, and delta ratio.
OpenNIHSS Practice Trainer
Score original stroke scenarios across all 15 NIHSS items, then check against the answer key with a rationale for each.
OpentPA / TNK Monitoring Schedule
Enter the bolus time and get the full post-thrombolytic neuro-check schedule (q15m → q30m → q1h) as clock times you can print.
OpenGlasgow Coma Scale (GCS)
Score eye, verbal, and motor response for a GCS total of 3–15 with a severity read — and a reminder to chart the component breakdown.
OpenMAP Calculator
Turn a blood pressure into the mean arterial pressure (MAP) — the perfusion number many titration orders are written against.
OpenBlood Volume Calculator
Estimate total blood volume with Nadler's equation, and split red-cell vs plasma volume with a hematocrit.
OpenBasal Energy Expenditure
Estimate resting calorie needs with the Harris–Benedict equation — the starting point for nutrition planning.
OpenModified Early Warning Score (MEWS)
Add up five bedside vital signs to flag a deteriorating patient and trigger earlier monitoring and escalation.
OpenBraden Scale
Score six subscales for pressure-injury risk (6–23) and get the risk band so prevention starts early.
OpenBMI & BSA Calculator
Body mass index with weight category, plus body surface area (Mosteller) for weight-based dosing. Metric or US units.
OpenIV Drip Rate Calculator
Drops per minute (gtt/min) from volume, time, and tubing drop factor — plus the mL/hr pump rate.
OpenPregnancy Due Date Calculator
Estimate the due date by Naegele's rule (adjustable for cycle length) and the current gestational age and trimester.
OpenAPGAR Score
Score the newborn APGAR (0–10) across appearance, pulse, grimace, activity, and respiration at 1 and 5 minutes.
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