ITC IRMA TruPoint Blood Analysis System - Manual (Page 128)

A.4
Creatinine
Substance (concentration) Expected Effect
Acetaminophen (20 mg/dL)
Increase creatinine by 0.2 mg/dL at
creatinine levels <2 mg/dL. Results
were variable at levels <8 mg/dL
Creatine
(> 5 mg/dL) Suppressed creatinine levels were
observed at creatine levels >5
mg/dL.
Hydroxy Urea
(<500 µmol/L) Decreased creatinine results by
approximately 0.2 mg/dL at normal
creatinine levels.
Iodoacetate
(900 mg/dL) Decreased creatinine results by
approximately 50% at both the 0.9
and 8.7 mg/dL creatinine levels.
Isoniazide
(7 mg/dL) Decreased creatinine results by
approximately 15% at the 0.9 mg/dL
creatinine level. No effect was
observed at the 8.7 mg/dL creatinine
level.
Sodium Bromide
(100 mg/dL) Decreased creatinine results by
(approximately 25% at the 2 mg/dL
creatinine level.
Sodium Fluoride
(1000 mg/dL) Decreased creatinine results by
approximately 70% at both the 0.9
and 8.7 mg/dL creatinine levels.
Thiopental
(25 mg/dL) Decreased creatinine results by 25%
at both the 0.9 and 8.7 mg/dL
creatinine levels.