Oh's Intensive Care manual:

• Chapter 63   (pp. 677) Preeclampsia  and  eclampsia by Wai  Ka  Ming  and  Tony  Gin
• Chapter 64   (pp. 684) General  obstetric  emergencies by Winnie  TP  Wan  and  Tony  Gin
• Chapter 65   (pp. 692) Severe  pre-existing  disease  in  pregnancy by Jeremy  P  Campbell  and  Steve  M  Yentis

Pregnancy is essentially a well-tolerated subacute parasitosis. Oh's Manual (7^th ed) has an excellent little table on page 685, which summarises the changes in physiological variables during pregnancy. This table is essential, and should be committed to memory.

Summaries and discussions of pregnancy-related problems from Life in the Fast Lane are made available as a list of links in the Resources section.