Certified Clinical Hemodialysis Technician (CCHT) Practice Exam

A fistula, which is created by connecting an artery to a vein, is primarily placed in the forearm, near the wrist, for optimal hemodialysis access. This location is preferred because veins in the forearm can become larger and stronger, making them more suitable for repeated needle access required during dialysis sessions. The forearm position also typically results in a better flow rate for the dialysis machine, enhancing treatment efficacy.

While other locations such as the upper arm might also be used, the forearm near the wrist is generally seen as the standard site due to the accessibility and size of the veins. Fistulas in less common places, like the thigh or hand, are less favored because they may present more complications, decreased ease of access, or reduced effectiveness.