The patient must present with a full bladder. 1  2hrs prior to the appointment, the patient should empty their bladder. 2  Over the next hour they should drink at least 1 litre of water. This allows time for the water to reach the bladder. 3  Do not go to the toilet until instructed by the Sonographer.
It is important to get the Rhogam shot if you are a negative blood type and your significant other is a postive. Negatuve blood type is a recessive trait, therefore its highly likely your baby will have a postivie blood type. A negative blood type means your blood cells lack a protien coating.
Rh negative mother and Rh negative father produced an Rh negative child. Mother required 2 units of blood to be transfused after the child's birth. Now the mother is pregnant with child 2. Midwife is recommending Rhlg injection at 28 and 32 weeks to protect the child because of the previous transfusion.