I agree with rd389 and Ibraheem shaikh with regards to respecting a person’s consent. Nowadays, IBR makes it a must for potential participants to be briefed with full information of the outcome and benefits form the test. In the case of compensation, it is generally nominal but certainly, there is a room for improvement. I believe that we should create a distinction between compensation made by hospitals and labs working with corporate firms. Also, longterm benefits from the conducted test must also be shared with participants but, this is not generally practiced and are always hidden from them.