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One of the main rules of imaging is only performing one probe maneuver at a time. The five major maneuvers are rocking, fanning, rotating, sliding, sweeping and pressure/compression (see Figures 4.5–4.11). Performing only a single maneuver at a time while optimizing your image should become habitual. When you perform multiple maneuvers at the same time, you are really doodling and nothing productive typically results. This is very common with “flashing” the abdomen, thorax, and lung (see Preface). We strongly discourage flashing but rather stick with the exact clarity of the 15 acoustic windows of Global FAST.

Figure 5.11. Be aware of the probe marker. Every probe has a marker or notch that serves as its orientation marker. Always keep track of the marker and when in longitudinal or sagittal orientation, keep it directed toward the patient’s head. Getting into the habit of holding the probe with your index finger or thumb on the marker or be able to clearly see the probe marker keeps you from making mistakes and getting confused during image acquisition and interpretation. Screen orientation is also important (see Figure 1.6).

Source: Courtesy of Dr Gregory Lisciandro, Hill Country Veterinary Specialists and FASTVet.com, Spicewood, TX.