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High Positive™ Prekallikrein Activator (PKA) Control product is high positive control for assays of Prekallikrein Activator in biological fluids.
The method for the determination of Prekallikrein Activator (PKA) in human plasma derived products is based on the activation of a prekallikrein preparation from human plasma. The PKA present in the sample activates plasma prekallikrein to plasma kallikrein, which then hydrolyses a chromogenic peptide substrate for plasma kallikrein. The amount of colour generated is monitored spectrophotometrically and is directly proportional to the amount of PKA present in the sample.
High Positive™ Prekallikrein Activator (PKA) control can be used as a control in conjunction with the Just Positive™ borderline control for the assay of PKA.
5 x 0.5ml vials composed of High Positive™ Prekallikrein Activator (PKA) Control is prepared from a plasma fraction containing PKA and albumin.
The expiry date printed on the bottle labels refers to the storage of unopened bottles stored at 2 to 8°C.
Pathway Diagnostics Prekallikrein Activator (PKA) assay kit, (shown below), or an “in-house” PKA assay:
Test standardization and limitations
The production and standardization of High Positive™ Prekallikrein Activator (PKA) Control is controlled by the use of the 2nd International Standard for PKA.
The level of PKA in High Positive™ Prekallikrein Activator (PKA) Control is batch specific and assigned using the Pathway Diagnostics Prekallikrein Activator (PKA) assay kit. The control is intended as an accuracy control of the Pathway Diagnostics Prekallikrein Activator (PKA) assay, but can also be used as a control in “in-house” PKA assays.
The batch specific control ranges assigned using the Pathway Diagnostics PKA test are shown in the table printed on the reverse side of the insert packaged with the product.