<prompt> All of the following screening test are recommended by CDC in pregnant female exceptELISA for HIVHBs AgNAAT for chlamydia and gonorrheaSaline microscopy for bacterial vaginosis  <response>: Ans. is d, i.e. Saline microscopy for bacterial vaginosisTests recommended by CDC-to be done at 1st antenatal visit for STD. ELISA for HIV HBs Ag for hepatitis B VDRL test for syphilis NAAT for chlamydia and gonorrhea in pregnant females 25 years and older women. HCV antibodies testing for hepatitis C virus most important basic factor being past or current drug use Pap test.No routine screening done for: Bacterial vaginosis even in those females who are at high risk for preterm labor Trichomonas vaginalis HSV-2. 