| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| red top tube serum or plasma | 1.15 | 0.4 | 9359 | 3 |
| red top spin off tube serum or plasma | 1.73 | 0.2 | 1683 | 96 |
| red tube serum or plasma | 1.42 | 0.3 | 6930 | 21 |
| red top serum or plasma | 1.44 | 0.7 | 8230 | 5 |
| gold top tube serum or plasma | 1.06 | 0.6 | 588 | 46 |
| blue top tube plasma or serum | 1.38 | 0.8 | 7762 | 57 |
| serum tube red top | 0.23 | 0.2 | 403 | 70 |
| green top tube serum or plasma | 1.15 | 0.6 | 8463 | 58 |
| serum or plasma tube | 0.04 | 0.3 | 6093 | 99 |
| red tube for serum | 0.98 | 0.6 | 3027 | 36 |
| red top serum pour off tube | 1.01 | 0.8 | 4880 | 44 |
| plasma vs serum tubes | 0.41 | 1 | 8781 | 54 |
| red top tube blood test | 1.44 | 0.3 | 3845 | 16 |
| red top tubes for blood | 1.27 | 0.5 | 4014 | 73 |
| serum vs plasma collection tubes | 0.78 | 0.3 | 3434 | 64 |
