Answer 19: If it is possible for him to rinse his body or clothe during prayer in such a way that the form of the prayer and posture of the person are not changed, he should remove the impurity amid the prayer.  If the blood is bigger than a 2 Rial coin and rinsing would lead to disruption of the prayer, he should break the prayer and repeat it after he has made his body and clothe ritually pure.