| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how often can you give a ppd test | 1.49 | 0.1 | 6549 | 70 |
| how often do you need a ppd | 1.25 | 0.4 | 6247 | 94 |
| how often is ppd required | 1.52 | 0.7 | 2319 | 48 |
| how soon can ppd test be repeated | 1.67 | 0.4 | 2186 | 20 |
| how soon can you repeat ppd testing | 0.59 | 0.4 | 9852 | 86 |
| ppd test good for how long | 1.35 | 1 | 2587 | 32 |
| how many days to read ppd test | 1.75 | 0.3 | 7062 | 39 |
| how long are ppd test good for | 0.05 | 0.3 | 3867 | 99 |
| when should a ppd test be read | 1.81 | 0.7 | 6626 | 19 |
| when to read a ppd test | 1.53 | 1 | 1994 | 23 |
| how long between ppd tests | 0.29 | 1 | 9925 | 13 |
| when to check ppd test | 0.96 | 0.3 | 6985 | 19 |
| how long are ppd tests valid for | 0.2 | 0.4 | 1315 | 42 |
| how long to wait between ppd tests | 0.05 | 0.7 | 6344 | 4 |
| cdc recommendations on annual ppd testing | 0.16 | 0.3 | 8593 | 25 |
| when to get ppd checked | 1.62 | 0.9 | 9271 | 99 |
| cdc recommendations for ppd testing | 0.01 | 0.3 | 8819 | 83 |
