Abbott i-STAT 1 System Manual page 567

K EDTA and K
2
PURPOSE
This Technical Bulletin contains the information needed to select the K
option for reporting hematocrit results on the i-STAT System.
HEMATOCRIT CALIBRATION
The reference method for hematocrit is the microhematocrit (MH) method. All instruments measuring
hematocrit are expected to be traceable, or calibrated, to this reference method.
The microhematocrit reference method described in CLSI H7-A3
anticoagulant sample collection tubes. K
anticoagulant, causing microhematocrit results from K
approximately 2 – 4% than results from K
Consequently, instruments calibrated to MH-K
calibrated to MH-K EDTA.
2
SELECTION OF THE K
SYSTEM
i-STAT provides two customization settings for reporting hematocrit results: The "K
reports hematocrit results traceable to MH-K
traceable to MH-K EDTA.
2
For best agreement of i-STAT and hematology analyzer hematocrit results, the i-STAT customization
setting is selected according to the calibration of the comparative hematology analyzer (MH-K
MH-K EDTA). (Note: The default setting on the i-STAT System is K
3
Abbott Point of Care Inc. • 100 & 200 Abbott Park Road • Abbott Park, IL 60064 • USA
i-STAT
TECHNICAL BULLETIN
EDTA Customization for Hematocrit on the
3
i-STAT
EDTA anticoagulant shrinks red blood cells relative to K
3
EDTA samples (MH-K
2
3
EDTA OR K EDTA CUSTOMIZATION SETTINGS ON THE i-STAT
2 3
EDTA. The "K
3
Art: 716240-01D
®
System
®
EDTA or K
2
permits both K
3
EDTA samples (MH-K
3
EDTA).
3,4
2
EDTA report lower hematocrit results than analyzers
EDTA" customization reports hematocrit results
2
EDTA.)
3
EDTA customization
3
1-3
EDTA and K EDTA
2 3
EDTA
2
EDTA) to be lower by
3
EDTA" customization
3
EDTA or
2
Rev. Date: 26-Feb-16