GCAA do many Blood Tests
I would suspect that they will trap this one too.
I was told off the record that the GVAA medicals have more blood tests than mandated... They have included HIV.....(considered an intrusion into personel privacy elswhere)...without express permission.....
UAE wise, the initial / renewal visa medical MIGHT, pick this up too... Unlikely but possable.
IF over 60 even more tests.
Be aware.
Glf