A quality-control system for the "activated clotting time" test.

with the following parameter changes: Sample volume 40 pipetting 2.0 mL of FFP into the calcium-adulterated ACT 4; Diluent volume 14 L; Calculation mode 0. When tube, and treat it as if it were a patient’s sample. modified as above, results are reported in milligrams per The precision ofthe FFP and AP’N’ systems is tabulated liter and cover the range 1.7-54.5 mg ofalbunun per liter. below: We assessed the precision of this method by multiple analyses ofserum (n = 24), CSF (n = 25), and urine (n = 25) containing 43 g/L, 130 mg/L, and 7.8 mgIL, respectively. APTT