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The use of the pneumatic anti-shock garment (PASG) is indicated primarily for managing pelvic fractures. This device is designed to stabilize the pelvis and help control internal bleeding, which is a concern with this type of injury. By applying pressure around the pelvic region, the PASG can reduce the volume of the pelvis and help to prevent further blood loss into the abdominal cavity, thereby minimizing complications associated with pelvic fractures.

In other scenarios, such as pulmonary embolism or cardiac arrest, the use of PASG would not provide the necessary treatment or support for the patient's condition. Similarly, while hypovolemic shock is a critical condition that requires urgent intervention, the primary management involves fluid resuscitation and addressing the underlying cause rather than using the PASG. Therefore, its specific application for pelvic fractures highlights its role in trauma care and managing injuries effectively.