RESUMEN
Medical laboratory services in an echelon-II Deployable Medical Systems environment were examined after a 6-month deployment in Guatemala-Fuertes Caminos 94 (N). The limitations in preparing and executing laboratory operations by U.S. Army Reserve units using Minimal Essential Equipment for Training components were identified. Corrective actions for planning future operations requiring laboratory support were addressed. Despite significant limitations, 353 laboratory procedures were conducted to standard. Additionally, laboratory procedures supporting blood-transfusion activities was successfully undertaken. Employment of laboratory services in remote environments for extended durations requires special attention and complete planning to ensure that all elements of care are in place to support medical operations.