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Please update your RDS mobile app to version 4.7.1

We are pleased to advise that deep linking capability, enabling users to directly download individual mobile toolkits, has now been released on the RDS mobile app. When you install the update, you will see that each toolkit has a small QR code icon the header area beside the search icon – see screenshot below. Clicking on this icon will open up a window with a full-size QR code and the alternative of a short URL for sharing with users. Instructions are provided.

You may need to actively install the update to install RDS app version 4.7.1 to see this improvement. Installing this update is also strongly recommended to get the full benefits of the new contingency arrangements – specifically, that if the RDS website should fail, you will still be able to download new mobile app toolkits. 

To check your current RDS version, click on the three dots bottom right of the RDS app screen. This takes you to a “More” page where you will see the version number.  To install latest updates:

On iPhones – go to the Apple store, click on your profile icon top right, scroll down to see the apps waiting to be updated and update the RDS app.

On Android phones – these can vary, but try going to the Google Play store, click on your profile icon top right, click on “Manage apps and device”, select and update the RDS app.

Please get in touch with ann.wales3@nhs.scot with any questions.

Non-continuing pregnancy diagnosis (900)

Please report any inaccuracies or issues with this guideline using our online form

Ultrasound diagnosis of miscarriage should only be considered when:

  • Mean Gestation Sac Diameter >/= 25mm (with no obvious yolk sac) on Transvaginal scan
  • A fetal pole with Crown Rump Length (CRL) >/= 7mm on Transvaginal scan (without evidence of fetal heart activity)
  • A fetal pole with Crown Rump Length (CRL) >/= 32mm on Transabdominal scan (without evidence of fetal heart activity)

A second Sonographer (with at least one year’s post competency experience) MUST physically rescan the woman to confirm the diagnosis. If this is not possible on the same day, then another scan should be performed by a DIFFERENT Sonographer at a time that suits patient/department. If the scan needs to be performed by the SAME sonographer, there must be an interval of at least one week from the initial scan before it is repeated.

Sonographers MUST ensure the name and authorisation boxes are completed on BadgerNet.

In all cases, where there is any doubt about the diagnosis and/or a woman requests a repeat scan, this should be performed at an interval of at least one week from the initial scan before medical or surgical measures are undertaken for uterine evacuation.

Editorial Information

Last reviewed: 05/10/2023

Next review date: 31/10/2028

Author(s): Dr Lynne Thomson, Consultant O&G, QEUH.

Version: 2

Co-Author(s): Victoria Murray, Lead Sonographer O&G, QEUH.

Approved By: Gynaecology Clinical Governance Group

Document Id: 900