APACHE II — JoyShine Medical

APACHE II (ICU Severity)

Estimates ICU severity of illness and predicted hospital mortality from worst physiologic, age, and chronic-health values in the first 24 hours of admission; not validated for sequential monitoring.

Temperature (°C)

Mean Arterial Pressure (mmHg)

Heart Rate (bpm)

Respiratory Rate (br/min)

FiO₂ (0.21 = room air, 1.0 = 100%)

APACHE II uses one of two oxygenation inputs depending on FiO₂. Fill the field that matches; the other can be left blank.

PaO₂ (mmHg) — used when FiO₂ < 0.5

A-a gradient (mmHg) — used when FiO₂ ≥ 0.5

Arterial pH

Sodium (mEq/L)

Potassium (mEq/L)

Creatinine (mg/dL)

Acute renal failure (double creatinine points)

Hematocrit (%)

WBC (×10³/μL)

Glasgow Coma Scale (3–15, integer)

Age (years)

Chronic Health Points