Answer to Question 1
ANS: B
The terms body alignment and posture are similar and refer to positioning of the joints, tendons, ligaments, and muscles while standing, sitting, and lying. Weight is the force exerted on a body by gravity. Friction is a force that occurs in a direction to oppose movement. Body mechanics is a term used to describe the coordinated efforts of the musculoskeletal and nervous systems.
Answer to Question 2
ANS: B
Renal calculi are calcium stones that lodge in the renal pelvis or pass through the ureters. Immobilized patients are at risk for calculi because they frequently have hypercalcemia. Osteoporosis is caused by accelerated bone loss. A pressure ulcer is an impairment of the skin that results from prolonged ischemia (decreased blood supply) within tissues. A thrombus is an accumulation of platelets, fibrin, clotting factors, and cellular elements of the blood attached to the interior wall of a vein or artery, which sometimes occludes the lumen of the vessel.