The four points of probe placement in focused abdominal sonogram for trauma (FAST) in thoracoabdominal trauma are
subxiphoid, (R) upper quadrant, (L) upper quadrant , suprapubic Epigastrium, (R) and (L) hypochondria, (R) iliac fossa Epigastrium, (R) and (L) lumbar region, (R) Lower Chest Hypogastrium, (R) and (L) lumbar region, (R) lower chest