BD FACSPresto Near-Patient CD4 Counter Instructions For Use
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The initial drop might contain tissue fluids that may dilute the
sample.
7. Wait until a large drop of blood forms.
8. Apply the blood to the inlet port of the cartridge.
Hold the cartridge by its ridges only.
Squeeze and hold the finger to maintain blood flow until blood
reaches the top of the inlet port. Make sure the cartridge is
level, with the barcode side up, at all times. Make sure that
blood appears in the part of the channel not covered by the
channel protector, next to the containment zone.
9. Apply the sponge and a bandage to the patient’s finger to stop
excess bleeding.
10. Close the cartridge cap securely.
