5 sentences for 1 and 2 then answer 3,4,5 with details. 1.Is defensive medicines

5 sentences for 1 and 2 then answer 3,4,5 with details.
1.Is defensive medicines a necessary cost of practice and a quality enhancer, or is this care purely unnecessary?
2.why does advancement in medical technology lead to increased utilization of services.
3.who should determine medical quality-the government or the medical profession?
4.Is there any harm or risk in prescribing unnecessary medications?Can this practice increase health care costs?
5.Is there any harm associated with unnecessary testing?can tests lead to more tests and higher costs?Give examples.