Respiratory Tactician is a clinical reference tool built by a respiratory therapist, for respiratory therapists. Designed for fast, accurate bedside decisions in adult, pediatric, and neonatal settings.

CALCULATORS
• P/F Ratio, A–a Gradient, S/F Ratio, OSI, Oxygenation Index
• Anion Gap, Bicarbonate Gap, Henderson–Hasselbalch, Expected pH
• IBW, Protective VT (ARDSNet), Driving Pressure, Static & Dynamic Compliance
• RSBI, NIF/MIP, Vital Capacity, Minute Ventilation, Dead Space
• Shunt Fraction, PVR, SVR, Mean Airway Pressure
• SpO₂ → PaO₂ conversion, Altitude O₂ Correction
• O₂ Tank Duration with HFNC, Mechanical Vent, and Hamilton C1 NIV estimators
• CO₂ Have/Want (RR, VT, VE), Airway Resistance

PEDIATRIC & NEONATAL
• Peds and Neonatal HFNC starting flow (weight-based)
• Broselow Pocket — color zones, ETT sizing, laryngoscope blade, defibrillation doses
• Peds ETT Size, Peds CPAP, Peds BiPAP, HFOV
• Neonatal SIMV, A/C, HFOV, HFJV, Neonatal CPAP

SPECIALTY GASES
• Inhaled Nitric Oxide (iNO) — dose, NO₂ estimate, tank life
• Heliox Flow Correction
• Nitrous Oxide mix and tank life
• Altitude O₂ Correction for transport

VENT MODES REFERENCE
• Adult: VC-A/C, PC-A/C, PRVC, SIMV, PSV, CPAP, ASV, BiLevel/NIV (Hamilton C1), HFNC, APRV
• Pediatric: VC-AC, PC-AC, PSV, HFNC, CPAP, BiPAP, HFOV
• Neonatal: SIMV, A/C, HFOV, HFJV, CPAP
• Each mode includes startup settings and clinical considerations

ABG INTERPRETER
• Full ABG interpretation with VBG → ABG correlation tab
• Base excess, P/F ratio, A–a gradient at a glance

REFERENCE
• ARDS Berlin Criteria with ARDSNet targets and PEEP/FiO₂ table
• Normal Values — ABG, oxygenation, vent parameters, weaning thresholds
• Vent Alarm Guide — causes and actions for common alarms
• Extubation Checklist

For use by licensed respiratory therapists and healthcare professionals. Not intended to replace clinical judgment.