This is a great video demonstration of where ultrasound demonstrates vascularity in the radix, and the choice is made by Dr. Zainab not to inject here.
L20 HD3
Ultra-High Frequency Linear Scanner
Frequency: 8–20 MHz
Max Depth: 4 cm
Applications: Anesthesia, Dermatology, MSK, Ophthalmology, Pediatrics, Plastic Surgery, Podiatry, Rheumatology, Small Parts, Vascular Access
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