Differential Diagnosis Food Poisoning | Medical Algorithm

Are you evaluating a person who become sick within 6 hours of eating?

Yes

Onset after eating

hours

Did the illness involve?

• nausea and vomiting?

Yes

• abdominal cramps and/or diarrhea?

Yes

• paresthesias?

Yes

• headache?

Yes

• facial flushing?

Yes

• parasympathetic hyperactivity?

Yes

• delirium or hallucinations?

Yes

Is/Did the patient?

• taking an MAO inhibitor?

Yes

• take a dose of niacin?

Yes

• eat food containing monosodium glutamate (MSG)?

Yes

• drink alcohol?

Yes

• eat fish?

Yes

• eat shellfish?

Yes

• eat mushrooms?

Yes

• get better within 12 hours?

Yes

Evaluation

Results

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Specialty

Objective

ICD-10

Differential Diagnosis of Foodborne Illness Starting Within 6 Hours of Ingestion

Purpose: To evaluate a patient who developed evidence of a foodborne illness within 6 hours of eating.