Are the cpli and ctli tests time senstive(i.e. is it needed to test right away in order to get accurate results)?
From doing a bit of research, I quote


  The various analytes have different stability in serum. Serum TLI and
  PLI are stable for up to 2 weeks at room temperature. However, serum
  folate shows limited stability at room temperature. Therefore, serum
  samples for folate analysis should be kept at 4ºC for not longer than
  48 hours, but freezing is preferred. Furthermore, folate is light
  sensitive and samples should be stored in the dark or wrapped in foil (reference).


So, it should be fine if the tests are conducted in two weeks.