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Plasminogen Activator

Published: July 27, 2026Updated: August 25, 2026

Plasminogen activator is a biomarker that measures the levels of enzymes responsible for converting plasminogen to plasmin, playing a crucial role in fibrinolysis.

Quick summary

Plasminogen activator levels indicate the activity of the fibrinolytic system.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

Units
ng/mL
Clinical utility
diagnostic
Result kind
quantitative
FDA-cleared
Roche tPA, Siemens tPA, Stago tPA
interpretation: {"text":"May indicate impaired fibrinolysis, potentially leading to increased risk of thrombosis.","label":"Low Levels"}; {"text":"May suggest enhanced fibrinolytic activity, potentially associated with bleeding disorders or excessive clot breakdown.","label":"High Levels"}

Plasminogen activator is an enzyme that catalyzes the conversion of plasminogen to plasmin, which is essential for breaking down blood clots. This process is known as fibrinolysis.

Measuring plasminogen activator levels can help diagnose conditions related to abnormal clotting or bleeding, such as disseminated intravascular coagulation (DIC) or thrombotic disorders.

The normal reference range for plasminogen activator is 0–12 ng/mL. Deviations from this range may indicate a need for further clinical evaluation.

Frequently asked questions

What is the role of plasminogen activator in the body?
Plasminogen activator converts plasminogen to plasmin, which breaks down blood clots during fibrinolysis.
What conditions can be diagnosed by measuring plasminogen activator?
Conditions such as DIC, thrombotic disorders, and bleeding disorders can be diagnosed by measuring plasminogen activator levels.
  1. 1
    Plasminogen activator: An overviewSource
  2. 2
    Fibrinolysis and its role in diseaseSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy