A vitamin K-dependent protein made primarily by the liver that acts as a natural blood thinner, helping your body's clot-prevention system break down clotting factors before they cause dangerous
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | Instalabcheapest via Multi-lab (3) · seen today | Multi-lab (3) | today | $170 | order → |
| 2 | DirectLabs via Quest Diagnostics · seen today | Quest Diagnostics | today | $184 | order → |
| 3 | Jason Health via Quest · seen today | Quest | today | $275 | order → |
| 4 | LabsMD seen today |
| Fibrinogen Activity | 10 retailers | $29.95 |
| Prothrombin Time (PT) (INR) | 9 retailers | $15 |
| Prothrombin Time - PT + Partial Thromboplastin Time - PTT Test | 6 retailers | $43 |
| D-Dimer | 6 retailers | $40 |
| Protein C Antigen | 5 retailers | $109 |
| D-Dimer, Quantitative | 4 retailers | $128 |
| Partial Thromboplastin Time (PTT) Blood Test | 4 retailers | $10 |
| PTT-LA with Reflex to Hexagonal Phase Confirmation Test | 4 retailers | $59.95 |
| — |
| today |
| $649 |
| order → |