Thank you for your query.
Both platelets and white blood cell
count can change very rapidly and hence have to be monitored. I believe you are meaning that the platelets have increased from 40,000/cu mm to 1,00,000/cu mm. This count is very good and does not indicate ITP
. Nevertheless it is better to repeat it after 3 weeks as suggested by the doctor.
I hope I have answered your query to your satisfaction.
Wishing your grandson all the best.