Jamiat KZNJamiatul Ulama KZN
Fasting FAQs Part 1 (3/27)
Question
Is it permissible to have a blood test whilst fasting?
Answer
Yes and this will not invalidate the fast. However, it will be disliked to have a blood test if one fears that by having a blood test, he/she will become weak and thus will be unable to maintain the fast.
Fatawa SA is an independent, read-only index of fatawa already published by Jamiatul Ulama KZN. It is not a fatwa service. For your own situation, ask the issuing Darul Ifta directly.