3. Placenta previa:
| a. | is associated with 'accidental' haemorrhage | |
| b. | is graded I - V | |
| c. | the placenta is found to be low on routine second trimester scan in about 10% of pregnancies | |
| d. | most 'low' placentas on the 20 week scan are due to placenta previa | |
| e. | is more common in multiparous patients | |
| f. | is more common in patients who have had uterine surgery. | |
| g. | is grounds for classical Caesarean section | |
| h. | increases the risk of postpartum haemorrhage | |
| i. | is grounds for immediate hospital admission. | |
| k. | is associated with a doubling of the risk of fetal abnormality. | |
| l. | mostly needs Caesarean section if the placental edge is within 2cm of the os. |