LOINC Code 81639-7: Heparin dose response slope Coag (Bld) [Units]

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Heparin dose response slope. It is commonly used with the system or sample type Bld.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Observation
• Method: Coag

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Heparin dose response slope in Blood by Coagulation assay
• Heparin dose response slope
• The heparin dose response slope is a measure of the increase in the clotting time of fresh whole blood as the heparin concentration is raised to a known value. The slope is measured in seconds of increase/unit of heparin/mL of blood volume.
• Arbitrary; Blood; Clot; Clottable; COAGULATION; Coagulation assay; Hematology; Heme; Hep; Hep dose resp slope; Hepar; Heparn; Point in time; QNT; Quan; Quant; Quantitative; Random; Tilt tube; WB; Whole blood

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions