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5.7 Analyzing the Sample (Micro Pipette Adapter, MPA)
(continued)
Collection
methodology
Samples can be analyzed using the MPA from both venous and capillary blood
specimens.

For venous collection, see Section 5.1 and steps at the end of this section for details
of sample handling and preparation.

For capillary collection, follow steps below and the procedure for optimal collection
of capillary blood specimens given in the CSLI standard H04-A6 "Procedures and
devices for the collection of diagnostic capillary blood specimens". (For latest edition
of this standard go to
www.clsi.org .)
Starting procedure Follow the procedure below to operate MPA:
Step Action
1
Choose List, Sample, or Main menu to begin sample analysis. Analyzer must be in one of
these operation modes to aspirate.
2
Pull out the MPA adapter. (The instrument will give an instruction to put back the MPA
adapter to start).
3 Remove the previous sample micropipette. (If applicable)
4 Place the adapter on the table.
Puncture site preparation for capillary blood collection Refer to laboratory protocol.
Important

Due to PLT adhesion to tissue and capillary walls and imprecision in preparation and
blood draw procedures, discrepancies between capillary and venous blood values
may occur on the following parameters:
o
PLT may be lower in capillary blood by 5-10%
o
WBC may be slightly elevated if PLT clumping occurs
Drawing blood and sample preparation:
Step Action
8
Follow lancet packaging insert for instructions on proper use. Puncture middle or ring
finger, using the lancet.
Figure 5.18