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The Flash Exam is Not a FAST Exam

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The “Flash Exam” term is applied for a general whole‐cavity acoustic window approach to rapidly answer a simple binary question: is free fluid present or not in the abdominal and thoracic cavity? And now, with lung ultrasound becoming accepted among colleagues, are B‐lines present or not? There is so much more to gain by using standardized acoustic windows of AFAST and TFAST (and Vet BLUE) that take about the same amount of time as the “Flash” approach. The “Flash” usually is followed by “looking around,” often leading to a “satisfaction of search error” approach. Again, in the same amount of time, you could have done AFAST, TFAST, and Vet BLUE (Global FAST) with standardized acoustic windows following a protocol and gained so much more unbiased baseline patient information, while avoiding “satisfaction of search error.” AFAST, TFAST, and Vet BLUE are not “Flash” exams and the terms should not be used interchangeably. We should stop teaching the “Flash” approach, just as we would not teach limited physical examinations – such as only quickly palpating the abdomen of a vomiting cat to draw clinical conclusions without looking further (Figure 1.1).

Point-of-Care Ultrasound Techniques for the Small Animal Practitioner

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