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Pre-natal diagnosis and screening


1st Trimester (0-12 weeks)

  • USS scan

    • Confirm Pregnancy

    • Number foetuses

    • Foetal viability

    • Gestational age - by crown-rump length

    • Nuchal translucency

  • Blood pressure

  • Urinalysis & MSU

  • Blood Tests

    • Full Blood Count

    • Blood group and rhesus

    • HIV, Hepatitis B, Syphilis (VDRL)

    • Rubella immunity

    • Double test

      • beta-HCG - risk of Down's syndrome

      • alpha-fetoprotein - risk of neural tube defects

 

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