Figure 8From: Injecting drug use via femoral vein puncture: preliminary findings of a point-of-care ultrasound service for opioid-dependent groin injectors in treatmentVenous flow with minor abnormality (grade 2). Colour flow image from the right femoral vein (rcfv) of the patient in figure 7 (case study C). Note that venous blood flow (as indicated in colour flow image) beneath the sinus remains satisfactory (arrow).Back to article page