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DiaSpect T
m
short instruction GB-02
Short instruction for use of the DiaSpect T
m
system
Always read the Operating Manual before using the DiaSpect system.
Measuring CAPILLARY BLOOD
Capillary sampling
1. Make sure the hand is warm and relaxed. Use the middle or ring finger for sampling. Avoid fingers with rings on.
2. Disinfect and dry the puncture site.
3. Gently massage the finger towards the tip to increase blood flow.
4. Make the incision on the side of the finger tip. Use the ‘upward side’ of the finger to facilitate filling of the cuvette.
5. Apply light pressure towards the fingertip until a blood drop appears. Discard the first 3 drops and make sure
there is a free blood flow before filling the cuvette with the sample drop.
6. Be sure to have a sufficient sized blood drop to fill the cuvette. Fill the cuvette by touching the corner of the
cuvette to the blood drop. Fill the cuvette without interruption.
7. Wipe off the outside of the cuvette. Check that the cuvette is completely filled.
Repeated sampling
Due to pre-analytical factors, hemoglobin measurements from capillary samples may sometimes be misleading.
Typically, pre-analytical factors can include use of the lancet, capillary sampling technique, restricted capillary blood
flow, or the presence of extra-cellular fluid in the sample.
These factors commonly affect the result towards too low results. Confirmation of an unexpected or unacceptable
result can exclude potential pre-analytical factors as the cause. As the DiaSpect method is very fast, this confirmatory
test can preferably be done using the same incision, as long as there is still a free flow of blood. If the blood flow has
stopped, another incision should be made for the confirming sample. Record all results from repeated sampling,
including relevant information about the reason for re-testing.
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