To detect Vitamin K deficiency
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | HealthLabscheapest seen today | — | today | $96 | order → |
| 2 | Walk-In Lab |
| LabCorp,Quest |
| today |
| $96 |
| order → |
| 3 | Instalab via Multi-lab (4) · seen today | Multi-lab (4) | today | $96 | order → |
| 4 | DirectLabs via Quest Diagnostics · seen today | Quest Diagnostics | today | $99 | order → |
| 5 | Request A Test via LabCorp · seen 1mo ago | LabCorp | 1mo ago | $99 | order → |
| 6 | LifeExtension via Life Extension Lab Tests · seen today | Life Extension Lab Tests | today | $149 | order → |
| 7 | Request A Test via Quest · seen 1mo ago | Quest | 1mo ago | $149 | order → |
| Vitamin B12 | 16 retailers | $10 |
| Magnesium RBC Test | 14 retailers | $8 |
| Ferritin | 14 retailers | $9 |
| Calcium, Ionized | 14 retailers | $18 |
| Iodine Test | 13 retailers | $30 |
| Selenium | 12 retailers | $12 |
| Iron Test | 11 retailers | $13 |
| Zinc, Blood Test | 11 retailers | $11 |