Spc. Christina Masterman, a native of Riverside, Calif., performs a Multi Stix on a urinalysis dip to check for proteins, blood and other particles in the urine at the Riva Ridge Troop Medical Center, Aug. 28, 2008. Masterman serves with Company C, 526th Brigade Support Battalion, 2nd Brigade Combat Team, 101st Airborne Division (Air Assault), Multi-National Division – Baghdad.