PurpleDaisy Logo
PurpleDaisyResources
BiomarkersReference MatrixLab PanelsCalculatorsCompareGuidesBlog
Download on the App Store
BiomarkersReference MatrixLab PanelsCalculatorsCompareGuidesBlog

Biomarker Encyclopedia

500+ Items
Master Catalogs
  • All 500+ Biomarkers Directory
  • Longevity Reference MatrixPDF
Categories (500+ Markers)
  • Cardiovascular & Lipidology
  • Metabolic & Glycemic Control
  • Renal Physiology & Electrolytes
  • Hepatic & Biliary Function
  • Hematology & CBC
  • Iron Metabolism & Oxygen Transport
  • Endocrinology & Hormones
  • Micronutrients & Vitamins
  • Immunology & Longevity Clocks
Download Meridian on the App Store
Home/Biomarkers/Cardiovascular & Lipidology/Factor V
Cardiovascular & LipidologyProthrombinase Complex

Coagulation Factor V Activity (Factor V)

Single-chain glycoprotein synthesized in hepatocytes and megakaryocytes, serving as the essential cofactor in the prothrombinase complex.

Standard Range60 - 140%
Optimal Longevity70 - 130%
Measurement Unit% Activity
Organ SystemProthrombinase Complex
Routine Panels:Prothrombinase CascadeLiver Synthetic Function

Standard vs. Optimal Reference Ranges% Activity

Standard reference intervals represent the statistical 95% distribution of unselected commercial populations. Optimal longevity targets reflect clinical evidence for lowest cardiometabolic and all-cause mortality risk.

Interactive Range Analyzer
Unit: % Activity
% Activity
Presets:
42 % ActivityOptimal Zone Target189 % Activity
Optimal Longevity Zone(100 % Activity)

Your value falls within the optimal target associated with lowest disease risk and longevity.

Standard Reference Interval

60 - 140%

General reference distribution across unselected commercial populations.

Optimal Longevity Target

70 - 130%

Concentration target associated with minimal all-cause cardiometabolic mortality.

Molecular Mechanism & Clinical Purpose

Activated by thrombin into Factor Va, which accelerates Factor Xa-mediated conversion of prothrombin (II) into thrombin (IIa) by 300,000-fold.

Differential Diagnosis

Elevated Levels (Factor V High)

  • •Normal prothrombinase catalytic capacity

Low Levels (Factor V Low)

  • •Congenital Factor V deficiency (Owren disease / parahemophilia)
  • •Severe acute hepatic parenchymal necrosis
  • •Consumptive coagulopathy / DIC

Technical Reference & Deep Dive

Biochemistry & Enzymatic Pathways
At the molecular level, Coagulation Factor V Activity (Factor V) plays an essential physiological role in prothrombinase complex. Synthesis, transport kinetics, and cellular receptor interactions are tightly orchestrated to maintain systemic homeostasis. Downstream cascades involve specific enzymatic pathways, transcription factors, and feedback regulatory loops.
Longevity Risk Architecture & Epidemiology
Unlike Factor VII, Factor V is not vitamin K-dependent; measuring Factor V alongside PT distinguishes liver necrosis from vitamin K deficiency.
Pre-Analytical Caveats & Diagnostic Workup

Pre-Analytical Considerations:

Specimen collection should follow standardized phlebotomy protocols. Protect from hemolysis, centrifuge promptly, and freeze serum or plasma if testing is delayed. Patient should be in a resting, fasting state where indicated.

Reflexive Testing Protocol:

  • Confirmatory testing and secondary biomarker quantification for Factor V
  • Targeted organ system imaging or functional dynamic testing related to prothrombinase complex
  • Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
  • [1]Clinical Reference and Molecular Physiology of Coagulation Factor V Activity - The New England Journal of Medicine (2021). PMID: 34090124
  • [2]Factor V Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35322901
Common Panels:Prothrombinase CascadeLiver Synthetic Function
View All Panels

Associated Longevity Guides & Clinical Calculators

Medicine 3.0

Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Coagulation Factor V Activity (Factor V) into overall healthspan optimization.

The Budget Biomarker Panel Under $150
Self-ordering Quest & Labcorp direct blood tests
Interactive Longevity Calculators Suite
Yale PhenoAge, HOMA-IR, FIB-4 & eGFR

Related Cardiovascular & Lipidology Biomarkers

High-Sensitivity C-Reactive Protein
hs-CRP · < 0.5 mg/L
Serum Creatinine
Cr · 0.8 - 1.1 mg/dL (stable across time)
Apolipoprotein B
ApoB · < 60 mg/dL (or < 50 mg/dL in high-risk phenotypes)
PreviousCoagulation Factor VIII Activity (Factor VIII)Cardiovascular & LipidologyNextCoagulation Factor VII Activity (Factor VII)Cardiovascular & Lipidology