Heparin is widely used in hospitals as an anticoagulant. Unfractionated heparin is usually monitored using TCA and thrombin time tests. Often, plasma samples are not identified as containing heparin and may be present as an unexpected contaminant.
So, the reason for prolonged TCA or KCT testing may not be apparent, and laboratory testing may not be straightforward.
Laboratories may find it useful to have a simple method of confirming the presence of heparin before proceeding with further investigations as needed.

TCA : temps de caphaline activé
KCT : kaolin clotting time
SACT : surface activated clotting time
NaPTT : Nonactivated partial thromboplastin time

Heparin Resistant Recalcification Solution (HRRS) containing 0.025 M of calcium salts with polybrene, preservatives, blue marker dye and buffers.

- Ready-to-use solution
- HRRS is a simple and unique product that plays an important role in routine testing.

- 5 vials x 10 mL solution of calcium chloride CaCl2 0.025M