LOINC Code 49058-1: Coagulation aPTT (BldCRRT) [Time]

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 BldCRRT.

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

What it does not mean

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

Key facts

• aPTT in Blood drawn from CRRT circuit by Coagulation assay
• Coagulation
• Test for Continuous Renal Replacement Therapy aPTT. Activated partial thromboplastin time (aPTT) performed on continuous dialysis patients. aPTT drawn from CRRT machine.
• aPTT; Bld CRRT; Blood from Continuous Renal Replacement Therapies; Clot; Clottable; Coag; Coagulation assay; Hematology; Heme; Point in time; QNT; Quan; Quant; Quantitative; Random; Surf; Tilt tube; 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