also known as Mercury in Blood
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | Goodlabscheapest via Quest · seen today | Quest | today | $21 | order → |
| 2 | DirectLabs via Quest Diagnostics · seen today | Quest Diagnostics | today | $99 | order → |
| 3 | LabsMD seen today | — | today | $117 | order → |
| Lead Test | 14 retailers | $11 |
| Arsenic Blood Test | 10 retailers | $19 |
| Mercury Test | 9 retailers | $50 |
| Cadmium, Blood | 7 retailers | $21 |
| Aluminum, Serum Blood Test | 6 retailers | $52 |
| Nickel Blood Test | 6 retailers | $149 |
| Carbon Monoxide, Blood Test | 5 retailers | $59 |
| Mercury Random Urine Test | 5 retailers | $77.95 |