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 Cannot ultrasonographically characterize fluid, so sample acquisition via centesis and fluid analysis and cytology is required when free fluid is safely accessible.

 Lacks sensitivity for injury in penetrating trauma because blood acutely clots, but is likely highly specific for intraabdominal and retroperitoneal injury similar to human studies; serial examinations are imperative in questionable patients.

 Potentially misses peritonitis and small‐volume bleeds in dehydrated or hypotensive patients. AFAST examinations should be applied minimally once after resuscitation and rehydration has taken place and as many times as necessary until you are assured that the patient is not surgical

 Cannot replace a detailed complete abdominal ultrasound.

 Cannot replace proper training.