The nurse is assigned to care for a client with multiple traumas who is admitted to the hospital. The client has a leg fracture, and a plaster cast has been applied. In positioning the casted leg, the...

The nurse is assigned to care for a client with multiple traumas who is admitted to the hospital. The client has a leg fracture, and a plaster cast has been applied. In positioning the casted leg, the nurse should perform which intervention?

 1. Keep the leg in a level position. 2. Elevate the leg for 3 hours, and put it flat for 1 hour. 3. Keep the leg level for 3 hours, and elevate it for 1 hour. 4. Elevate the leg on pillows continuously for 24 to 48 hours.