Test Procedure and Results 4-15
Reagent Rotors
■ Do not use an expired rotor. The reagent rotor expiration date is printed on the foil
pouch and is encoded in the bar code.
■ Store all reagent rotors at 2–8 ºC (36–46 ºF) as described on their respective pouch
labels. Rotors may be used directly from the refrigerator.
■ Keep reagent rotors clean. Handle rotors only along the edges to eliminate the pos-
sibility of fingerprints on the cuvette optical surfaces. Use a lint-free tissue to clean
off large quantities of blood.
■ After introducing the sample, hold the reagent rotor flat to avoid spillage.
■ Never use a reagent rotor that has been dropped.
■ Use the reagent rotor within 20 minutes of opening the foil pouch.
■ Run the reagent rotor within 10 minutes of applying the sample.
Samples
■ Analyze whole blood samples within 60 minutes of collection.
■ Fill the lithium heparin specimen collection tube at least halfway to ensure the
sample does not have a high concentration of anticoagulant.
■ To prevent hemolysis, do not refrigerate or shake whole blood samples.
■ When adding blood to evacuated collection tubes, remove the needle from the
syringe and the stopper from the tube, and gently place the sample into the tube.
(If sample is injected through the stopper, hemolysis may occur.)
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