LOINC Code 13590-5: Activated protein C resistance Coag (PPP) [Time ratio]

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 Activated protein C resistance. It is commonly used with the system or sample type PPP.

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: Both
• Method: Coag

What it does not mean

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

Key facts

• Activated protein C resistance [Time Ratio] in Platelet poor plasma by Coagulation assay
• Activated protein C resistance
• APC Resistance is a ratio of aPTT with APC to aPTT without APC
• Activ; APC; APCr; APC-R; Autoprothrombin II-a; Clot; Clottable; COAGULATION; Coagulation assay; Hematology; Heme; PC; Plas; Platelet poor plasma; Point in time; PR; Prot; Prot C; QNT; Quan; Quant; Quantitative; Random; Resist; Resistanc; Resistant; Resistent; Tilt tube; Time ratio; UniversalLabOrders

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