LOINC Code 52767-1: Coagulation (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 Coagulation. 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.surface induced.after addition of protein C activator

What it does not mean

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

Key facts

• Activated partial thromboplastin time (aPTT) in Platelet poor plasma by Coagulation assay -- after addition of protein C activator/Activated partial thromboplastin time (aPTT)
• Coagulation
• The protein C pathway the patient's protein C is activated by agkistrodon contortrix (Protac[TM]). Then, an aPTT or DVVR-based coagulation is started. These tests should screen the protein C pathway covering protein C defects, protein S defects and Factor V Leiden mutations.
• aPTT; Clot; Clottable; Coag; Coagulation assay; Hematology; Heme; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; Surf; Tilt tube; Time ratio

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