What ARDS criteria qualify for prone positioning?

PROSEVA criteria: moderate-severe ARDS (P/F 12-16 consecutive hours; mortality benefit RR 0.61 (39% relative risk reduction); 6 prone sessions reduced 28-day mortality from 32.8% to 16%.

What are absolute contraindications to prone positioning?

Absolute: unstable spinal cord injury, elevated ICP with no ICP monitor, open abdominal wounds, hemodynamically unstable despite vasopressors, massive hemoptysis, recent sternal/tracheal surgery, unstable pelvic fracture.

How long should each prone session last?

Minimum 16 hours per session; PROSEVA protocol: 16+ hours prone, then 4-8 hours supine; continue daily sessions until P/F>150 for 4 hours in supine, or maximum clinical benefit achieved or cannot tolerate.

What complications occur during proning in ICU?

Endotracheal tube displacement/obstruction, central line/arterial line dislodgement, pressure injuries (face, chest, knees), corneal abrasions, brachial plexus injury, hemodynamic deterioration during turning procedure (transient, usually resolves).

Does prone positioning reduce ventilator-associated lung injury?

Prone positioning recruits dorsal lung regions, reduces dependent atelectasis, distributes stress and strain more homogeneously, reduces tidal volume-related VILI, and reduces driving pressure in many patients; these mechanical benefits explain the mortality benefit.

Prone Positioning Eligibility and Safety Checklist for ARDS

Determines prone positioning eligibility based on PROSEVA trial criteria (P/F<150, PEEP≥5, FiO2≥0.6) and provides contraindication checklist, expected P/F improvement calculation, and safe proning protocol.

Weight

Height

Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.

How It Works

Each component has a specific meaning:

PROSEVA trial criteria (P/F<150 — The proseva trial criteria (p/f<150 recorded for the patient or scenario being assessed.
PEEP≥5 — The peep≥5 recorded for the patient or scenario being assessed.
FiO2≥0 — The fio2≥0 recorded for the patient or scenario being assessed.

Note: Interpret the prone positioning ards result against the clinical thresholds and context described above.

How to Use

Enter the PROSEVA trial criteria (P/F<150, PEEP≥5, FiO2≥0 for the patient or scenario you are assessing. Determines prone positioning eligibility based on PROSEVA trial criteria (P/F<150, PEEP≥5, FiO2≥0.6) and provides contraindication checklist, expected P/F improvement calculation, and safe proning protocol. Use the prone positioning ards result to inform your clinical assessment.

Related Calculators

ARDS Berlin Classifier

Medical Calculators

Vent Weaning SBT