OGG Test- Ilang hours po ang fasting dapat? As in bawal po ba nag inom ng water or sip? Salamat po.#

6-8hrs fasting,as in NO water & food...kuhanan ka nang dugo...after kuhanan papainomin ka ng glucose juice...tapos fasting nanamn ng another 2hrs...after 2hrs kuhanan ka ulit ng dugo...after nyan pwedi kna kumain & uminom.