aPTT

Coagulation factors are proteins in your blood. They help form blood clots to stop bleeding when you have an injury. These proteins are also called clotting factors. You have several different types of clotting factors that are all important for making blood clots.

A coagulation factor test is used to find out if you have a problem with any of your clotting factors that may cause too little or too much blood clotting.

Source: MedlinePlus, U.S. National Library of Medicine

Normal range

No published reference range from a named lab yet.

What an abnormal result can be associated with

A high result
Prolonged partial thromboplastin time

Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis — only a clinician can interpret your result in context.

Details

Sample
Serum or plasma · LOINC
Listed under
Bleeding · Bleeding Disorders · Blood Clots · Hemophilia
Code
LOINC 14979-9 · s
Also known as
Coagulation assay, Surf, Heme, Clot, Clottable