Acute Respiratory Distress Syndrome Risk Factors

Core body temperature

Has the patient's systolic blood pressure been < 85 mm Hg for 2 hours or more?

Has the patient's systolic blood pressure been decreased 40 mm Hg or more from the usual systolic blood pressure for 2 or more hours?

Are inotropic drugs needed to keep the systolic blood pressure > 85 mm Hg?

Is a pulmonary vascular catheter present?

Systemic vascular resistance

Was an episode of inhalation of gastric contents witnessed?

Have gastric contents been suctioned from the patient's trachea or endotracheal tube?

Has the patient experienced significant smoke inhalation within the past 3 days?

Has the patient had a significant inhalation of a chemical lung irritant?

Has the patient had a drug overdose?

Does the patient have severe abdominal pain, nausea and vomiting?

Does the patient have a significant second or third degree burn?

Percent of body surface area involved by second degree burn (enter from 0 to 100)

Percent of body surface area involved by third degree burn (enter from 0 to 100)

Has the patient had blunt chest trauma?

Is a localized infiltrate seen on chest imaging within 6 hours of the trauma?

Are there ecchymoses or rib fractures in the area of blunt trauma?

Does the patient have any broken bones in extremities or pelvis?

Number of broken major long bones

Is there a major fracture of pelvic bones?

Is the pelvic fracture unstable?

Maximum number of red cell products infused over a 12 hour period

Is there a lung infiltrate on chest imaging?

Is the sputum or endotracheal aspirate purulent?

Is a known pathogen seen in Gram stain of the sputum?

Is a known pathogen cultured from the sputum?

Is gross pus present in a closed space?

Has a known pathogen been cultured from a site suspected to be infected?

Is at least one blood culture positive for a common infectious pathogen?

WBC count per µL

Percent immature neutrophilic forms in the peripheral blood differential (enter from 0 to 100)

Patient's serum amylase

Laboratory's upper limit of normal reference range for serum amylase

Is there an unexplained metabolic acidosis, with the base deficit > 5 mmol/L?