Are there any risks to the tests?There is very little risk to having a blood test. You may have slight pain or bruising at the spot where the needle was put in, but most symptoms go away quickly.There is no risk to having a urine test.An ultrasound may feel a bit uncomfortable, but there is no risk.If you've taken contrast dye for a CT scan, it may taste chalky or metallic. If you got it through an IV, you may feel a slight burning sensation. The dye is safe in most cases, but some people may have an allergic reaction to it.
