Right Heart Catheterization — Hemodynamic Assessment
Patient
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18–120
1.0–3.0 m²
Vitals
20–300
From monitor
20–200
40–260
20–160
PA Catheter Pressures
Right atrial pressure (normal 2–6)
0–40
Normal ~25
0–120
Normal ~5
0–40
Normal ~25
0–120
Normal ~10
0–60
From monitor (normal ~15)
0–80
Wedge pressure (normal ≤12)
0–40
Thermodilution
Average of ≥3 runs (normal 4–8)
0.5–20
Fick CO optional
3–25
Mixed venous — PA blood draw
10–100
Arterial sat (default 100)
40–100
Blank = 125 × BSA estimate
50–700
Complete the highlighted fields, then press Calculate.
Fick Cardiac Output
VO₂ used
—
—
mL/min
a–v O₂ diff
SaO₂ − SvO₂
—
%
CO (Fick)
normal 4–8 L/min
—
L/min
CI (Fick)
normal 2.2–4.0 L/min/m²
—
L/min/m²
—
Assumed-Fick VO₂ estimate (125 mL/min/m²) carries meaningful error; a measured VO₂ is preferred when accuracy matters.
Clinical research and educational tool only — not for use without physician oversight.
Measured Values
RAP
normal 2–6 mmHg
—
mmHg
—
RV
normal ~25/5 mmHg
—
mmHg
—
PA
normal ~25/10 mmHg
—
mmHg
—
MPAP
PH if >20 mmHg
—
mmHg
—
PAOP
post-cap if >15 mmHg
—
mmHg
—
MAP
normal 70–100 mmHg
—
mmHg
—
Cardiac Output / Index
CO (TD)
normal 4–8 L/min
—
L/min
CI (TD)
normal 2.2–4.0 L/min/m²
—
L/min/m²
—
CO (Fick)
normal 4–8 L/min
—
L/min
CI (Fick)
normal 2.2–4.0 L/min/m²
—
L/min/m²
—
Hemodynamic Calculations
SVR
normal 800–1200 dyn·s·cm⁻⁵
—
dyn·s·cm⁻⁵
—
PVR
normal <2.0 WU (<160 dyn·s·cm⁻⁵)
—
WU
—
PVR
= 80 × WU
—
dyn·s·cm⁻⁵
TPG
mPAP − PAWP; normal <12 mmHg
—
mmHg
—
DPG
dPAP − PAWP; legacy CpcPH marker ≥7
—
mmHg
—
CPO
<0.6 W = cardiogenic shock
—
W
—
PAPI
normal ≥1.5
—
—
SAPI
normal ≥2.5
—
—
CVP/PAOP
>0.8 = RV predominant
—
—
RVSWI
normal 5–10 g·m/m²
—
g·m/m²
—
Pulmonary Hypertension Classification
Hemodynamic Phenotype
—
—
This calculator is intended as a clinical research and educational tool.
It should not be used in isolation or acted upon without oversight by an experienced physician.