Why Ring Finger Is Pricked?

This not only helps to avoid the nerves, but the bone as well, which could be damaged in very thin or small patients. The middle or ring finger is preferred as having the greatest depth of tissue beneath the skin and hence offering the least chances of injury.

Why is ring finger used for capillary blood?

Correct selection of puncture site – The middle or ring finger should be used, ideally of the non-dominant hand, as they are generally less calloused and less sensitive to pain compared to the index finger or thumb. The thumb should also be avoided due to its pulse (arterial presence).

Why is the ring finger the weakest finger?

Because the nerves for the ring and pinky finger are intertwined, it becomes harder to move each of these fingers separately. The same things happens between the ring and middle finger. However, your middle finger moves much more easily because it's getting two sets of signals.