The range of injuries is initially a number between 0 and 10. This is then mapped to 0 to 5 weeks. In the case of a level 10-doctor, values of 5 to 10 are mapped to 0 to 5, and lesser values result in injuries only for the remainder of the game. For a level-0 doctor, the total range of 0-10 is compressed.
Depending on how rounding is done, injuries over 4.5 weeks might be shown as 5-week injuries. In any case, it is possible to have injuries that are nearly 5 weeks.