Ichem velocity urine chemistry reported false negative blood for pt samples.Two samples were reported out to the physician.It is unk if pt management was changed as a result.Fse noticed the analyzer was becoming de-primed during normal operation, leading to air bubbles in tubing.Fluid block assembly was replaced and instrument stayed primed.Fse completed velocity performance verification checklist and system was operational.Upon further investigation, 2 pt samples on urine chemistry reported false negative for blood and these results were reported out to the physician.It is unk at the present time if there was a change in pt management as a result.
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