As the nurse inspects the perineum of a client who is in active labor, the client suddenly turns pale and states that she feels as if she is going to faint even through she is lying flat on her back. what is the nurse's priority intervention?

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]