2. Amniocentesis.
| a. | the risk of miscarriage is 5%. | |
| b. | if chromosomes are cultured, the diagnosis is 100% accurate. | |
| c. | should be offered routinely to women over the age of 37 years. | |
| d. | is the preferred method of investigating a raised serum AFP result. | |
| e. | can be used to assess the severity of Rhesus disease. | |
| f. | has largely been superseded by chorionic villus biopsy. |