When is a portable ultrasound most appropriate in air medical transport, and what are its key limitations?

When is a portable ultrasound most appropriate in air medical transport, and what are its key limitations?

• A. To diagnose pneumonia in all patients.
• B. To replace radiographs for diagnosing fractures.
• C. To screen for deep vein thrombosis in all patients.
• D. For FAST exam in trauma or focused cardiac assessment; limitations include motion, space constraints, and power requirements.

Answer: (D)