Match each clinical presentation of an acutely injured trauma patient with the most appropriate next step in diagnostic or therapeutic management.
- Hemodynamically stable patient following a head-on collision at highway speeds; initial chest radiograph shows widening of the superior mediastinum.Computed tomography (CT) angiography of the thorax.
- Hemodynamically unstable patient with a rigid abdomen following a fall from a significant height; FAST examination reveals an anechoic stripe in the hepatorenal space.Emergent operative exploration via laparotomy.
- Patient presenting with a precordial stab wound, profound hypotension, a narrowed pulse pressure, and elevated central venous pressure.Emergent decompression via pericardiocentesis or subxiphoid window.
- Hypotensive patient involved in an industrial crush accident; exhibits an unstable pelvic ring on manual compression but no free fluid on FAST.Immediate application of a noninvasive pelvic circumferential compression device.
Answer
Stable widened mediastinum matches with CT angiography. Unstable positive FAST matches with laparotomy. Cardiac tamponade matches with emergent decompression. Unstable pelvic fracture with negative FAST matches with pelvic binder application.
The matching relationships follow established ATLS guidelines. A hemodynamically stable patient with a mechanism of injury and plain film concerning for blunt aortic injury safely undergoes CT angiography for definitive diagnosis. An unstable patient with fluid in Morison's pouch (positive FAST) has active intra-abdominal hemorrhage and requires emergent laparotomy to achieve source control. A penetrating chest trauma patient presenting with hypotension, distended neck veins, and narrow pulse pressure has cardiac tamponade, requiring emergent pericardiocentesis or a pericardial window to relieve the obstructive shock. Finally, a patient with a mechanically unstable pelvis and a negative FAST is bleeding into the retroperitoneum; an emergent laparotomy would be non-therapeutic and could fatally release the retroperitoneal tamponade effect, making a pelvic binder the correct immediate next step.
Step-by-Step Solution
Key Concept
Advanced Trauma Life Support (ATLS) algorithms for blunt and penetrating trauma prioritize interventions based strictly on hemodynamic stability and the identified source of hemorrhage or shock.