This page sets out the OSATS requirements for the basic ultrasound assessment of fetal size, liquor and the placenta module.
You have to be competent in:
Fetal measurement, lie and presentation
- Counsel patient about procedure
- Appropriate probe selection and machine set-up/operation
- Confirm fetal heartbeat
- Establish lie
- Establish presentation
- Measure BPD transabdominally*
- Measure FL transabdominally*
- Measure HC transabdominally*
- Measure AC transabdominally*
- Communicate results and uncertainties to patients
- Complete a structured ultrasound report
- Discuss appropriate referral if indicated
- Ensure images/video are recorded according to local protocol
*Competence to the level of independent practice is not required for these parameters
Liquor assessment (AFI and maximum pool depth)
- Counsel patient about procedure
- Appropriate probe selection and machine set-up/operation
- Confirm fetal heartbeat
- Assess fetal lie and presentation
- Measure amniotic fluid volume: maximum vertical pool depth
- Measure amniotic fluid volume: AFI
- Communicate results to patient
- Complete a structured written ultrasound report
- Arrange appropriate referral follow-up
Placental assessment
- Counsel patient about procedure
- Appropriate probe selection and machine set-up/operation
- Confirm fetal heartbeat
- Assess fetal lie and presentation
- Determine placental position - transabdominally
- Communicate results to patient
- Complete a structured written ultrasound report
- Arrange appropriate referral follow-up
Forms