Platelet Closure Time (PFA)
The PFA test measures how swiftly platelets form a microscopic plug under simulated high-shear blood flow conditions.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
80 – 160 secondes
80 – 160 secondes
80 – 160 secondes
What does a low result mean?
A brisk closure time reflects responsive platelet adhesion and aggregation.
What does a high result mean?
A lengthened closure time is very commonly caused by recent aspirin, ibuprofen, or cold medication intake in the past week.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Could recent aspirin or anti-inflammatory tablets explain this prolonged timing?
- Is this result suitable ahead of upcoming surgery or dental procedures?
- Should this be verified when off all over-the-counter painkillers?
Do you have a full blood test report?
Upload your lab document (PDF or image) to get an instant, clear explanation for every biomarker at once.
Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.