eRHC Calculator PRO vs Code Blue Log

eRHC Calculator PRO is a hemodynamic calculator app for qualified healthcare professionals, used during right heart catheterization (RHC) procedures. Here's what it contains: App Purpose A clinical calculation and documentation tool for invasive hemodynamic measurements — specifically tied to the ALLAY-HF and ALLAY-HFrEF clinical studies. Key Features Patient data management — save/load/share patient records as JSON files, with patient ID, institution, weight/height (kg/lb, cm/in), DOB, and BSA calculation Multi-stage calculator — timed hemodynamic measurements across stages (rest, exercise, etc.) with vitals, pressures, V-waves, CO via thermodilution or Fick method Threshold system — configurable alert thresholds with rules (lower/upper bound, range, special PCWP rules) Time synchronization — reference clock offset for procedure timing Print/share results — formatted report output Formula reference — all formulas listed (BSA, mPAP, PCWP, TPG, VO₂, CO, CI, PVR) Formulas Implemented BSA: Mosteller (general) and Du Bois (Fick-specific) mPAP: (sPAP + 2×dPAP) / 3 PCWP from V-Wave: ((V-High − V-Low)/3) + V-Low TPG: mPAP − PCWP VO₂: Gender-specific regression equations (Dehmer et al.) O₂ content: (Sat/100 × Hb × 1.36) + dissolved O₂ CO (Fick): VO₂ / (arteriovenous O₂ difference × 10) CI: CO / BSA PVR: (mPAP − PCWP) / CO (in Wood units) Legal/Info Developer: Andreas Kuhl, Germany Fully offline — no data collection, no internet, all data stays on device Medical disclaimer: intended as a calculation aid only, not for standalone clinical decisions © 2025-2026 Andreas Kuhl Clinical References Citations link to PubMed/journals for Mosteller, Chemla, Rajagopalan, Simonneau, ESC/ERS 2022 PH Guidelines, Du Bois, Dehmer, Severinghaus, Fick, and others.

Primarily intended to be used as a high-tech note-taking tool during emergency resusctiations, transports, and responses, with build-in stopwatches to assist with timekeeping and a dynamic event log to assist with recording tasks. Similar to the functionality built into the Lifepak and Zoll defibrillators, the Code Blue Log builds on this functionality by adding more stopwatches for BLS & ACLS events that require accurate timing, and an extensive but easily-navigable library of drugs, events, cardiac rhythms, and procedures that can be annoted to the on the event log quickly and easily.