Would likely wait until after delivery unless things worsen.
TSH is a blood test for thyroid function.
Thank you for your comments. You say she should have TSH testing but what exactly is TSH? She is 3 weeks away from giving birth. Should she wait for birth for further investigation?
Judith
Judith-
I encourage your daughter to find a good ENT/ radiologist. She needs imagining to rule out the possibility of a tumor infecting the vocal nerve.
Would see an ENT to evaluate the vocal cords. It is not likely related to tumor regrowth, but this needs to be considered. Also, testing TSH which should be in the lowish range (0.2-1.0 in this case -- or even lower depending on the cancer status) -- under-treated hypothyroidism can worsen the voice.
First step is ENT eval.