Prenatal Genomics —
Training activity: 3

Details

Analyse, interpret and report the results of cell free DNA diagnosis, to include NIPD.

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.

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

What are the intended outcomes of the training activity?

• How do you plan to identify the specific clinical scenarios where NIPD is the appropriate testing strategy for patients with a family history of a genetic disorder (e.g., single-gene disorders or sex-linked conditions)?
• What specific best practice guidelines (such as ACGS) will you need to employ to accurately interpret genomic variants and determine their clinical significance in a diagnostic context?
• What are the essential elements of a prenatal genomic report for NIPD that ensure findings and recommendations for patient management are clear and actionable for clinicians?
• How will you apply your specialist knowledge of prenatal genomics throughout this process to ensure you are delivering a safe and high-quality service?
• What do you need to know before embarking on the activity? Consider the technical differences between NIPT (screening) and NIPD (diagnosis), the biological requirements for foetal fraction, and the specific laboratory SOPs for diagnostic cfDNA analysis.

What do you anticipate you will learn from the experience?

• What specific insights do you hope to gain from this activity? For example, are you interested in how to distinguish between maternal and foetal alleles in a diagnostic setting?
• Think about what you already know about the task. How does your existing understanding of Mendelian inheritance and molecular techniques provide a foundation for interpreting NIPD data?

What actions will you take in preparation for the experience?

• How will you gain clarity on the diagnostic criteria and the scope of the NIPD service in your laboratory?
• What challenges do you anticipate (e.g., managing low foetal fraction, interpreting variants of uncertain significance in a prenatal setting, or meeting strict clinical turnaround times), and how have you planned to handle them?
• Given that NIPD provides diagnostic results that directly influence pregnancy management, how are you preparing for the professional responsibility involved?

In action

What are you doing?

• How are you currently approaching the analysis of the NIPD data, and what technical decisions are you making to ensure the strategy is appropriate for a patient with a specific family history of a genetic disorder?
• As the activity progresses, what specific decisions are you making regarding variant interpretation and the assessment of its clinical significance?
• Which aspects of navigating the NIPD pipeline feel intuitive based on your previous experience, and which parts (such as applying specific best practice guidelines for diagnostic cfDNA) require more conscious effort?

How are you progressing with the activity?

• How effective are your current analytical actions in moving towards a definitive diagnostic result for this prenatal case?
• What challenges are you facing in the moment—such as technical noise in the data or interpreting a variant with limited prenatal evidence—and what are you learning from these as they occur?
• How does this diagnostic task connect to your existing knowledge and skills in molecular genetics and the technical limitations of cell-free DNA analysis?

How are you adapting to the situation?

• Are there alternative approaches you should consider if the initial analysis provides ambiguous results?
• Do you need support or guidance from your Training Officer or a senior Clinical Scientist to ensure the clinical significance of a finding is correctly determined before it is reported?
• How are you ensuring that your recommendations for patient management and your overall interpretation remain strictly within your professional scope of practice?
• How are you applying your specialist knowledge of prenatal genomics in real-time to ensure the delivery of a safe and high-quality diagnostic service?

On action

What did you notice?

• Summarise the key points of the NIPD activity, specifically detailing the diagnostic cases you handled for patients with a family history of a genetic disorder.
• What were the essential findings (e.g., specific variant detection in cfDNA) and clinical details that most significantly influenced your diagnostic interpretation and final report?

What did you learn from the activity?

• What specific skills or knowledge did you develop regarding the use of best practice guidelines to interpret genomic variants in a diagnostic prenatal context?
• How has this experience improved your ability to report prenatal genomic findings and provide clear, actionable recommendations for patient management?
• Were there any unexpected challenges or successes encountered during the analysis—such as distinguishing maternal from foetal alleles or managing low foetal fraction—and what did you learn from these?
• In what ways did your reflection-in-action—the real-time decisions you made during the task—influence the technical accuracy and clinical clarity of your final reports?
• How does this experience of delivering a safe and high-quality prenatal genomic service relate to the requirements for your future post-programme practice as a Clinical Scientist?

What will you take from the experience moving forward?

• What specific areas for continued development in NIPD analysis and variant interpretation have you identified as a result of this activity?
• How can you apply the learning from this diagnostic activity to your practice to ensure genomic investigations are conducted to the highest specialist standards?
• Identify the actions you will now take—such as reviewing updated diagnostic guidelines or seeking further training—to support the assimilation of what you have learned?
• What support or resources (e.g., specialist databases or senior clinical mentorship) do you need to further develop your expertise in this advanced area of prenatal genomics?

Beyond action

Have you revisited the experiences?

• How has your perspective on interpreting genomic variants in a diagnostic prenatal context evolved as you have encountered a broader range of clinical cases following your initial NIPD training?
• Through discussions with senior colleagues or peers, have you gained new insights into how you navigated the complexities of NIPD, and has your view of your technical decision-making transformed as a result of these discussions?
• Comparing this experience with your Observed Training Activities (OTAs), what specific observable behaviours—such as the the application of best practice guidelines—have you now assimilated into your practice?
• As part of a module review, what patterns have you identified in how you approach appropriate testing strategies for patients with a family history of a genetic disorder across different prenatal cases?

How have these experiences impacted upon your current practice?

• How has the specialist knowledge of prenatal genomics gained from this NIPD activity supported your development in other areas of your training, such as writing complex clinical reports or contributing to MDT discussions?
• In what ways have you applied the skills developed during this activity—specifically reporting prenatal findings and providing patient management recommendations—to your wider current practice?
• Recognising that these individual activities are building blocks of your learning, how has the experience of delivering a high-quality NIPD service improved your overall clinical confidence and technical independence?
• How is the learning from this diagnostic activity helping you prepare for “in-person” assessments, such as Case-based Discussions (CBDs) or Direct Observations of Practical Skills (DOPS) for this module?

How might these experiences contribute towards your future practice?

• What transferable skills—such as the ability to synthesise complex bioinformatic data into clear diagnostic outcomes—are you continuing to develop as you move toward becoming a Clinical Scientist?
• What clear actions have you identified for the continued development of your skills in NIPD and other emerging prenatal technologies to ensure you consistently provide a safe and high-quality genomic service in the future?

Relevant learning outcomes

#	Outcome
# 3	Outcome Apply appropriate testing strategies to patients with a family history of a genetic disorder.
# 5	Outcome Interpret genomic variants for prenatal patients and investigate the clinical significance of variants using best practice guidelines.
# 6	Outcome Report prenatal genomic findings, including appropriate recommendations for patient management.
# 7	Outcome Employ specialist knowledge of prenatal genomics to deliver a safe and high quality prenatal genomic service.