Changes in Reference Range for Plasma Ammonia

Effective today, the University of Iowa Hospitals and Clinics (UIHC) core laboratory will change reference ranges for plasma ammonia.  This will introduce gender-specific reference ranges for this test.

Test Epic # Previous range New Range
AMMONIA, PLASMA LAB47 7-42 μmol/L 11-51 μmol/L (males)
16-60 μmol/L (females)

Questions should be directed to Matthew Krasowski, MD, PhD, medical director of the Clinical Chemistry laboratory (384-9380,