ramadan: the easiest fasting bloods of the year, and the ones to postpone
Ramadan quietly solves the hardest part of many blood tests: the fast. If you are observing the fast, a draw in the late afternoon before iftar gives you ten or more clean fasting hours since suhoor — better discipline than most people manage for a routine clinic appointment. Home collection providers in the UAE know this and typically extend their scheduling, with pre-iftar afternoon slots and late-evening visits after taraweeh for those who prefer to test after eating and rehydrating.
Some things are better moved out of the month entirely: tests that require you to be well hydrated, tests tied to medication schedules that shift during Ramadan, and anything your doctor wants under typical conditions. The point of testing at home during Ramadan is to work with the fast where it helps and around it where it does not.