Obstetric patients who are postoperative and receiving unfractionated heparin should have platelet count monitoring performed every  2 to3  days from days 4 to 14 or until heparin is stopped.

The platelet count should be checked after 24 hours of initiating treatment if the patient has previously received heparin (unfractionated or LMWH) in the last 100 days.

CTPA delivers a low radiation dose to the fetus

The diagnostic criteria of DKA are-

bocarb

glucose

Pregnant women with red cell antibodies, who are assessed as being at high risk of requiring a blood transfusion, should have a cross-match sample taken at least every week.

Current BCSH guidelines require a sample no more than 72 hours old for providing compatible blood in
pregnancy,but do allow a deviation to the 3-day rule for individual cases such as high-risk women with placenta praevia without red cell antibodies where weekly samples can be taken, as long as a risk assessment is made and recorded in each individual case

In high-risk women with red cell antibodies where a sample every 72 hours is not feasible, a sample should be taken once a week and if transfusion is required a new sample should be taken immediately, to exclude new antibody development. However, in the event of life threatening haemorrhage, urgent transfusion should not be delayed and close liaison with the hospital transfusion laboratory is vital.

Planned VBAC is associated with an approximately 1 in 200 (0.5%)
risk of uterine rupture

According to Guidance from the British Committee
for Standards in Haematology, it is greater than 2 gram/dL

Women are generally advised to wait for at least 2 years after treatment for breast cancer before
conception.