Screen travelers for conditions that can be exacerbated by exertion or environmental hazards (e.g., high elevation, temperature extremes).
Screen travelers for conditions that can be exacerbated by exertion or environmental hazards (e.g., high elevation, temperature extremes). Ask travelers whether they have a history of anaphylaxis-level allergies, asthma, cardiac disease, cerebrovascular disease (e.g., stroke, transient ischemic attack), chronic pain treated with opiates, deep vein thrombosis, diabetes, oxygen-dependent emphysema, joint replacement, pulmonary embolism, recent surgery, or sleep apnea. Any of these conditions could indicate a traveler is at risk for adverse outcomes under physiological stressful conditions. Travelers with a previous history of environmental illness (e.g., altitude illness, anaphylaxis, frostbite, heat exhaustion, hypothermia) could be at risk for recurrence.