Figure 9From: Injecting drug use via femoral vein puncture: preliminary findings of a point-of-care ultrasound service for opioid-dependent groin injectors in treatmentVein with severe damage (grade 3). Dual-frame image and compression test in a 43-year old woman (case study D). The left femoral vein (lcfv, short arrow) is smaller than the artery (lcfa) and the vein did not collapse completely with compression (long arrow). The damage to this vein was graded as severe (grade 3).Back to article page