hemostasis controls


Hemostasis Controls and Reference Plasmas


- Prothrombin Time Assays

- aPTT Assays

- Factor Deficient Substrates

- Fibrinogen and Thrombin Time Assays

- Controls and Reference Plasmas

- Quality Assurance Review for Hemostasis



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Reference Plasma

S.A.R.P. Specialty Assayed Reference Plasma

Cat. No. Item
5185 S.A.R.P., 10 x 1 mL

Coagulation S.A.R.P. was the first reference plasma fully assayed for virtually all coagulation studies. S.A.R.P. is prepared from a frozen pool of citrated plasma from healthy donors. S.A.R.P. has normal PT and aPTT clotting times and can be used as reference material for the following parameters:

Factor II*
Factor V**
Factor VII*
Factor VIII*
Factor IX*
Factor X*
Factor XI**
Ristocetin Cofactor*
Factor XII
Protein C*
Protein S - Total, Free
-*Standardized to WHO
**Calibrated against ISTH reference material


Hemostasis Controls


Controls for PT, aPTT

  • pt and aptt fibrinogen assays
Cat. No. Item
5186 Norm-Trol 1, 10 x 1 mL
5187 Ab-Trol 2, 10 x 1 mL
5183 Ab-Trol 3, 10 x 1 mL

Norm-Trol 1, Ab-Trol 2 and Ab-Trol 3 are normal, moderately elevated, and very elevated controls respectively, for PT and aPTT assays. Norm-Trol 1 is prepared from normal human plasma. Ab-Trol 2 and Ab-Trol 3 are prepared from adsorbed human plasma. Reconstituted controls are stable 8 hours at 2 to 8-C. When ordering, ask about our free Quality Assurance Review (QAR) peer review service.


S.A.C.-1 and S.A.C.-2 Assayed Controls

Cat. No. Item
5301 S.A.C.-1, 10 x 1 mL
5302 S.A.C.-2, 10 x 1 mL

S.A.C.-1 is a normal control plasma assayed for a broad spectrum of hemostasis tests including PT, aPTT, fibrinogen, Proteins C and S, Ristocetin Cofactor, vWF:Ag, plus Factors II, V, VII, VIII, IX, X, XI and XII. S.A.C.-2 is an abnormal control (values < 60% of normal) assayed for the same parameters as S.A.C.-1.


Quality Assurance Review (QAR) Program

Quality Assurance Review for Hemostasis


Quality Assurance Review (QAR) is a free computer service provided by Helena Laboratories that analyzes your daily quality control data for shifts or trends and establishes mean control values for your laboratory. It also allows you to compare your results to those of other laboratories using the same reagents, instruments and controls. The QAR retrospective peer reports include precision data on the various instrument-reagent systems being used.

Subscribers receive log sheets for recording daily QAR results and notebooks for storing daily log sheets and monthly reports. A guide for troubleshooting hemostasis procedures is also included. To get started, call toll free and ask for the QAR Coordinator.