Apitcher notices pain in his elbow during warm-ups. since pitching a ball is a repetitive motion, which injury is he most likely to have?

pulled tendon
torn ligament
chronic strain
acute sprain

The physician ordered velosef (cephradine) im 50 mg/kg/day in equally divided doses four times a day for a child who weighs 40 pounds. convert pounds to kilograms and then calculate the prescribed dosage. mg every hours