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.
If you use a home pregnancy test after an hCG injection, it is advisable to wait 20 days before interpreting the test as positive or negative. The best way to detect a pregnancy after an hCG injection or shot is the hCG beta blood test. The blood test is much more sensitive than an urine pregnancy test. The blood hCG test can detect a pregnancy as early as 10 days after fertilization with one caveat. You need two tests several days apart. If you are not pregnant, then the blood hCG numbers will be zero or they will decrease. If you are pregnant then they will rise.