Obstetric Ultrasound

1st Trimester (10-14 weeks)
-          Viability
-          Dating scan (CRL)/ REDD (if diff > 7)
-          Gross anatomy – anencephaly, cystic hygroma, bladder outflow obstruction
-          Multiple pregnancy – chorionicity, amnionicity

2nd Trimester (18-24 weeks)
-          Dating Scan (Biparietal diameter/ Head circumference)/ REDD (if diff >14)
-          Structural anatomy – brain, face, heart, kidneys, abdomen, spine, hands, feet, genitalia, bladder
-          Fetal growth – IUGR/PE/Oligo
-          Fetal Sex – 99% accuracy
-          Placental site – recheck @ 34 weeks

3rd Trimester
-          EFW: FL, AC, BPD
-          Fetal Progression, well being, presenting part
-          Placenta Location (> 28 weeks) 

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This is all a collection of what I have learnt during my medical student years, most of them are already a simplified version, very clinical, and comes from what my Lecturer had thought.... I love to make notes in my own way, so that I can have a better understanding on what I have seen.... I hope, this will benefit all people, especially medical students... so that you will get this right... but just bear in mind... I'm a human too... so, mistakes is still in my dictionary of life.... so, please correct me if I'm wrong... Really2x appreciate that....

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Just a simple guy with a lot of things going on his mind... love to please others and help others who in need... Hoping that every nice moment in his life could be shared with others as well...(coz it's not much)