Active
Siemens Critical Care Analysers SOP
Version:
2.00
Author
:
D Harrison
Doc Manager
:
D Harrison
Authorised by
:
Kath Ash
ton
Signature
: .
Ver Date
:
03/08/09
Do not photocopy this document
Page
23
of 24
Last printed:
5 August 2009
( David Harrison )
DMS Ref
:
Document in Microsoft Internet Exp
lorer
Interfering substances
The following substances were found to interfere with the glucose assay:
-
Substance
Concentration te
sted
Level of interference
Sodium Fluoride
1000mg/dl
+1.4 mmol/l
Acetoaminophen
2mg/dl
+0.4 mmol/l
Sodium Fluoride/
potassium oxalate
1000mg/dl
(each)
+1.4mmol/l
Pralidoxime
Iodide
16ug/l
Lactate
Interfering substances
The following substances
were found to interfere with the lactate assay:
-
Substance
Concentration tested
Level of interference
Sodium Fluoride
1000mg/dl
+1.0 mmol/l
Acetoaminophen
2mg/dl
+0.35 mmol/l
Sodium Fluoride/
potassium oxalate
1000mg/dl
(each)
+1.0 mmol/l
Pralidoxime
Iodide
64/ug/l
There have also been reports of positive interference to the Lactate assay from Ethylene Glycol and its
following metabolites:
-
Glycolic Acid, Formic Acid, Oxalic Acid and Glyoxylic Acid.
At time of SOP revision these had not been quantified
