The heart is divided into four main areas, or chambers â two upper chambers (called the left and right atrium) and two lower chambers (called the left and right ventricle). There are four valves that control the flow of blood through your heart.he heart is divided into four main areas, or chambers â two upper chambers (called the left and right atrium) and two lower chambers (called the left and right ventricle). There are four valves that control the flow of blood through your heart.
The newly approved Joint Commission on Accreditation of Healthcare Organizations (JCAHO) pain management standards present an important opportunity for widespread and sustainable improvement in pain assessment and management. Unrelieved pain is a major, yet avoidable, public health problem.
This evidence review focuses on evaluation and management of low back pain in adults. The. American Pain Society (APS), which commissioned this report, used it to develop evidence-. based clinical practice guidelines on evaluation and management of low back pain.