Training activity information
Details
Interpret and report the results of newborn screens, including examples of both negative and positive cases for three of the following conditions:
- Phenylketonuria (PKU)
- Congenital hypothyroidism
- MCADD
- Cystic fibrosis (CF)
- GA1
- MSUD
- IVA
- Homocystinuria
Type
Developmental training activity (DTA)
Evidence requirements
Evidence the activity has been undertaken by the trainee.
Reflection on the activity at one or more time points after the event including learning from the activity and/or areas of the trainees practice for development.
An action plan to implement learning and/or to address skills or knowledge gaps identified.
Considerations
- Method selection, including assay advantages and limitations, quality parameters, and interferences
- Equipment calibration and maintenance
- Quality control; EQA and IQC
- National and international guidelines
- National newborn screening Programme standards
- Role of the screening biochemist
- Report formats
Reflective practice guidance
The guidance below is provided to support reflection at different time points, providing you with questions to aid you to reflect for this training activity. They are provided for guidance and should not be considered as a mandatory checklist. Trainees should not be expected to provide answers to each of the guidance questions listed.
Before action
- For each of the three chosen conditions, what are the biochemical markers measured in the newborn screen? What are the screening cut-off values?
- What constitutes a ‘negative’ and a ‘positive’ screening result for each condition?
- What are the algorithms and follow-up pathways for positive screening results for each condition?
- What are the potential causes of false positive and false negative results in newborn screening?
- What are the key elements to include in a report of newborn screening results, both negative and positive?
- What is the psychosocial impact of newborn screening on families?
- How will you develop your ability to differentiate between negative and positive newborn screening results for the chosen conditions?
- What will you learn about the biochemical basis and clinical significance of these conditions?
- How will this activity enhance your understanding of the national newborn screening programme and its rationale?
- How will you learn to communicate newborn screening results effectively in a laboratory report?
- Review the national guidelines and protocols for newborn screening for the chosen conditions, including the screening algorithms and reporting requirements.
- Study examples of both negative and positive newborn screening reports for these conditions.
- Familiarise yourself with the analytical methods used for these screens.
- Consider the potential challenges in interpreting borderline results or understanding the follow-up implications.
- Reflect on your current knowledge of newborn screening and the conditions involved.
In action
- For each of the three chosen conditions, what is your approach to interpreting both negative and positive results? What specific analytes or markers are you looking at? What are the key thresholds or patterns that indicate a positive screen? Why are these markers significant for each condition?
- What decisions are you making as you determine whether a result is negative or potentially positive? How are you considering factors like cut-off values and the need for further investigation?
- Which aspects of interpreting new-born screening results for these conditions feel familiar, and which require more detailed review of condition-specific information?
- How effectively are you able to differentiate between normal and abnormal screening results for each of the chosen conditions?
- What challenges are you facing in interpreting these results? Are there any borderline cases or specific patterns that are difficult to classify?
- How does this interpretation relate to your understanding of the national newborn screening programmes and the importance of early detection?
- If you encounter an unexpected result pattern, are there alternative interpretations you are considering, or are you seeking clarification from guidelines or senior staff?
- Are you interpreting and reporting the results according to established protocols, including the appropriate follow-up actions for positive screens?
On action
- Describe examples of negative newborn screening results for the three conditions you reviewed. What were the expected marker levels or findings?
- Describe examples of positive newborn screening results for the three conditions. What were the abnormal marker levels or findings that triggered a positive result? What additional information (e.g., clinical details, repeat samples) was considered in the interpretation of these results? What were the key differences in the interpretation and reporting of negative versus positive results?
- What did you learn about the biochemical markers used for screening for each of the three conditions? How did this activity improve your ability to distinguish between normal and abnormal newborn screening results? What did you learn about the importance of timely and accurate reporting of newborn screening results, particularly for positive cases? What are the potential implications of false positive and false negative newborn screening results?
- What key elements will you focus on when interpreting and reporting future newborn screening results? How will you ensure you are aware of the specific reporting pathways and follow-up procedures for different conditions? Are there any specific conditions or markers that you need to further research or understand? What resources or guidelines will you refer to when interpreting complex or borderline newborn screening results?
Beyond action
- Now that you have more experience with newborn screening, do you have a greater appreciation for the range of conditions screened for and the different biochemical markers involved?
- Have you encountered any situations where the initial newborn screen result was unclear or required further investigation? How did your understanding from this training activity help you to appreciate the complexities involved?
- Consider any learning you’ve had about the clinical presentation and management of the three conditions you focused on. Has this deepened your understanding of the significance of newborn screening results?
- Has your initial experience in interpreting both negative and positive newborn screens made you more aware of the critical nature of accurate and timely reporting in this area?
- Has this training activity influenced how you approach quality control or troubleshooting related to newborn screening assays?
- If you were to be involved in educating parents or other healthcare professionals about newborn screening, how would your understanding of interpreting different results inform your communication?
- Could the skills you developed in associating specific biochemical patterns with clinical conditions be applied to the interpretation of results in other areas of paediatric biochemistry?
Relevant learning outcomes
| # | Outcome |
|---|---|
| # 5 |
Outcome
Evaluate the methodology and rationale of national screening programmes and explain the national standards associated with the trisomy and newborn screening programmes. |
| # 7 |
Outcome
Discuss the psychosocial impact of testing in the antenatal and newborn screening programmes. |