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

1 published range, each from a named source

3248 seconds drawn: all ages · ARUP Laboratories Test Directory

Normal: 32–48 seconds

Ranges from ARUP Laboratories Test Directory.

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 · seconds
Also known as: Coagulation assay, Clot, Clottable, Surf

See your own aPTT Add a lab report and it is drawn against your lab's range, over time. Upload a Blood Test