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Specialist Assays

Helena Biosciences

Thirty years of excellence in UK based manufacturing

Auto Blue D-Dimer 400
Auto Blue D-Dimer 400

The Auto Blue D-Dimer 400 is an immunoturbidimetric assay for the quantitative determination of D-Dimer fragments in citrated human plasma using semi-automated and fully automated instruments with wavelengths in the range of 350-600nm.

Auto Blue D-Dimer 400_ACL Elite
Auto Blue D-Dimer 400

REF: 5553IL Auto Blue D-Dimer 400 is an immunoturbidimetric assay for the quantitative determination of D-Dimer fragments in citrated human plasma on the ACL Elite Pro analyser.

Auto Red D-Dimer 700
Auto Red D-Dimer 700

The Auto Red D-Dimer 700 is an immunoturbidimetric assay for the quantitative determination of D-Dimer fragments in citrated human plasma using semi-automated and fully automated instruments with wavelengths in the range of 600-900nm.

D-Dimer Calibrator
D-Dimer Calibrator

The D-Dimer Calibrator is intended to be used in conjunction with Auto Blue D-Dimer 400 and Auto Red D-Dimer 700 as calibration plasma for the preparation of a standard curve on semi-automated and fully automated instruments.

D-Dimer Diluent
D-Dimer Diluent

The D-Dimer Diluent is intended to be used in conjunction with Auto Blue D-Dimer 400 and Auto Red D-Dimer 700 to create dilutions of patient, control and calibration plasma on semi-automated and fully automated instruments.

Manual D-Dimer Assay
Manual D-Dimer

The Manual D-Dimer is a semi-quantitative latex agglutination assay for the determination of fibrin D-Dimer in human citrated plasma to aid in the exclusion of DVT, PE and DIC. Serum samples suited for FDP analysis can also be used.

Free Protein S
Free Protein S

The Free Protein S kit is a latex immunoassay based method for the quantitative determination of Free Protein S in human plasma. It is suitable for use on automated instruments with a 400-600nm wavelength.

Protein S is used for the determination of functional Protein S levels in citrated human plasma using a clotting method.
Protein S (Clot)

Protein S is used for the determination of functional Protein S levels in citrated human plasma using a clotting method.

DRVVT Screen
DRVVT Screen

The DRVVT Screen kit is intended for the qualitative determination of Lupus Anticoagulants “LAs” in citrated human plasma. Russell’s Viper Venom directly activates Factor X to Factor Xa in the presence of phospholipids and calcium, leading to detectable clot formation in plasma. The DRVVT Screen kit is intended to be used in conjunction with the DRVVT Confirm kit.

DRVVT Confirm
DRVVT Confirm

The DRVVT Confirm kit is designed to be used in conjunction with the DRVVT Screen test kit to discriminate between Lupus Anticoagulants, factor deficiencies (II, V or X) or other inhibitors. If the clot time of the patient samples with the DRVVT Screen procedure are greater than 3 standard deviations above the mean of the normal range and are not corrected by mixing studies, a lupus anticoagulant may be present. Under these circumstances, samples should be re-tested using the DRVVT Confirm Reagent. The increased concentration of phospholipid in this reagent is designed to neutralise lupus anticoagulants.

PCA Ratio
PCA Ratio

The PCA Ratio Kit is a clot based assay used in determination of resistance to activated Protein C caused by Factor V Leiden mutation. This APTT based assay creates a clotting time ratio of PCA.APTT/APTT which determines APC resistance.

Total and Free Protein S Antigen
Total and Free Protein S Antigen

The Total and Free Protein S Antigen kit is an ELISA based method for the quantitative determination of Total and Free Protein S in citrated human plasma.

Free Protein S Antigen
Free Protein S Antigen

The Free Protein S Antigen kit is an ELISA based method for the quantitative determination of Free Protein S without PEG precipitation.

The Protein C Antigen kit is an ELISA based method for the quantitative determination of Protein C in citrated human plasma.
Protein C Antigen

The Protein C Antigen kit is an ELISA based method for the quantitative determination of Protein C in citrated human plasma.

The vWF Antigen kit is an ELISA based method for the quantitative determination of vWF in citrated human plasma.
vWF Antigen

The vWF Antigen kit is an ELISA based method for the quantitative determination of vWF in citrated human plasma.