High blood pressure in Immigration medical

[DEEMAH]

Posting on behalf my friend , who recently received ITA, During his medical test, the immigration panel doctor found that he is having high blood pressure 135/100 so doc prescribed him some medicine and asked him to come for the re -test after a week, he took the test again after a week , in the second test the BP was still high and doc prescribed him a different medicine, in the mean time he keep testing himself his BP at home and other pharmacies ,surprisingly all the reading was normal, so he is having little doubt over the bp apparatus at the immigration medical center,
Now the question is, can he take the immigration exam with some other immigration penal clinic? he already got his UMI number from the current panel doctor.