I declined ALL antental tests including scans. These are my personal reasons:
I declined full blood count because I know when I am anaemic. If I feel asymptomatic I do not feel a need to be treated.
I declined SAI screening because I had a complete set of tests for all SAI before ditching condoms with my then boyfriend, now husband and we were both clean.
I declined blood-typing because I knew my blood type (though did NOT know that other aspects can alter, good info, thank you whoever posted that!)
I declined antenatal screening because termination is not an option I would ever consider. However my husband would put pressure on me to terminate if, for example,it turned out I was carrying a Down's baby. This would put ENORMOUS pressure on our marriage and tbh I doubt it would survive. Having a Down's baby diagnosed at birth, otoh, is simething I think DH would come to terms with.
I declined ROUTINE scans because I see no reason for them. I knew my dates, have no interest in knowing of abnormalities or the gender and I do have concerns regarding the safety of them. No longitudinal studies following up exposure as fas as I am aware of. AIMS tdo an excellent publication "Ultrasound, Unsound?" by Beech.
BUT I would have a scan if I can see a good reason for them. I measured very small with DD2 and had serial growth scans, the last maybe ten days before she was born. She was born with a pulse of 60-odd and blue due to the cord being around her neck and strangling her. That was never picked up on a scan. I know that was not the purpose of the scans, but I am even more wary of them as a the risk-free screening tool some people tout them as being.
I thought the GTT was discontinued as a routine test and just offered to those with a high BMI?
I would not dream of declining a urine test.
I had NO hassle whatsoever from my mw; but then I had known her through 3 pregnancies and she knew me pretty well. I am not looking forward to having a new one (we've moved) with DC4.