ABFAS Practice exam| Questions and 100% Complete Solutions

A 45-year-old male sustained a crush-type injury with early soft tissue necrosis to the left foot. Radiographs are negative for fracture or dislocation. Which of the following tests would be most helpful for determining skin-flap viability? fluorescein dye study. distal plethysmography. segmental pressure gradients. indium scan. - Rationale: Fluorescein dye studies might not be routinely ordered, but of the available answer choices, this would provide the best information on soft tissue viability following a crush injury. Digital plethysmography and segmental pressure gradient would provide information about macrovascular perfusion, but not microvascular skin-flap tissue viability. An indium scan is non-specific for skin-flap viability.