This is a true tale. This group of friends was sea kayaking. One became ill and the WFR in the group was very concerned about the episode of localized pain during the night and argued that it triggered one of the evacuation guidelines in his Wilderness Medicine Field Guide. Using OPQRST to evaluate the pain he found:
- Onset: over several days with an acute episode last night.
- Provoked and Palliated: by nothing obvious.
- Quality: "hard cramping."
- Region: abdomen, no radiation.
- Severity: A "10", at present is a "2."
- Time: The pain episode lasted 30 minutes, the overall illness three days.
Generalized abdominal complaints are common in backcountry settings. Most of these are gastroenteritis, uncomfortable but not urgent, yet some could be a more serious problem that is beyond the skills and experience of a WFR to evaluate. These difficult cases need to be seen by a physician, but sorting which episodes of belly pain can stay in the field and which ones need to be evacuated is not easy. Our approach, as lay wilderness medicine practitioners, is to perform a thorough assessment, review the information, and use an abdominal pain evacuation protocol to make a sound decision. NOLS Wilderness Medicine's suggested evacuation guidelines for abdominal pain are based on expert opinion and have served NOLS instructors well as guidance for this decision.
NOLS' suggested evacuation guidelines for abdominal pain are:
Gastroenteritis with:
- Persistent or worsening abdominal pain over 24 hrs, spiking fever, bloody diarrhea, or dehydration.
- Inability to tolerate any oral fluids more than 48 hours, especially if accompanied by diarrhea or vomiting.
Abdominal pain with:
- Duration longer than 12 hours.
- Localized pain, especially with guarding, tenderness, distension, or abdominal rigidity.
- Peritoneal signs (movement pain or pain with foot strike).
Associated s/s:
- The signs and symptoms of shock.
- Blood in the vomit, feces, or urine.
- Nausea, vomiting, or diarrhea persisting for longer than 24 to 72 hours.
- A fever above 102°F (38.8 °C).
- Signs and symptoms of pregnancy.