scientific issues

I am going for fertility treatment where hormones are taken to produce a larger than normal number of eggs. Multiple pregnancies are a possible outcome of this. Is embryo reduction permissible in view of the fact that the babies stand a lesser chance of survival, the mother may be unable to cope, etc. I know for example of the case in the UK a couple of years ago where a woman produced 8 embryos, she refused to have embryo reduction and none of the embryos/babies survived. What is the Islamic ruling on this?

Dear scholars, as-salamu `alaykum. I work in the x-ray field, which includes imaging of female patients. What is the ruling on fasting for the woman who has to have such imaging done: should she break her fast and repeat it later on? Does it invalidate my ablution if I examine a woman for the purpose of imaging, noting that I wear gloves during the examination? Jazakum Allah khayran.

Does a woman have to perform ghusl after artificial insemination, as the two private parts of the husband and wife do not meet during this procedure? Is it obligatory or recommended and why?

I am curious to know whether Islam prohibits/permits the idea of 'connecting' someone to a machine in order to prolong their life? What if they have cancer, is chemotherapy haram? Is it also haram if papers are signed in order to take that person off the machines so that they can die in peace, since the patient was a 'vegetable' and it seems more humane to take them off the machine? Islamically, what do you think is morally the right thing to do?

I was just wondering (I'm not a doctor or anything) if euthanasia (mercy killing) is allowed in Islam. I think that if someone is enduring blinding pain and doesn't really have much time to live (2 or 3 months), the doctor should kill that person and end his/her misery. What do you think? Is Euthanasia allowed in Islam?

Dear scholars, As-Salamu `alaykum. A patient had a leg cut off in surgery. What should be done with it in the point of view of Islam? Jazakum Allah khayran.