 A study was done by Madan and colleagues to test this theory by conducting a retrospective chart review on all inborn infants <1000g admitted to the NICU that survived for 2 weeks of age during two separate 1 year time periods.Conventional bench top laboratory analysis during the first year was done using Radiometer Blood Gas and Electrolyte Analyzer.Bedside blood gas analysis during the second year was performed using a point-of-care analyzer (iSTAT).