Application of Techniques, Interpretation and Differential Diagnosis —
Training activity: 8

Details

Select and interpret the appropriate techniques for the investigation of an enzyme or red cell membrane disorder

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 will you focus your attention on the requirement to select and interpret the most appropriate laboratory techniques specifically for investigating red cell enzymopathies and membrane disorders?
• In what ways will reviewing the specified learning outcomes help you contextualise the need for detailed practical knowledge and experience in the screening and interpretation of these clinical disorders?
• How will you ensure you can accurately describe the limitations of the techniques applied during the investigation of these specific red cell presentations?
• What steps will you take to prepare for applying the principles of internal quality control (IQC) and external quality assessment (EQA) to draw robust conclusions about assay performance?
• How will this activity prepare you to demonstrate appropriate communication skills to present investigation results and cases clearly to your healthcare professional colleagues?
• How will you use this task to practice generating a differential diagnosis and identifying necessary downstream or reflex tests to aid in disease classification?

What do you anticipate you will learn from the experience?

• What specific insights do you hope to gain regarding the assays and methodologies used to investigate enzyme deficiencies (such as G6PD or pyruvate kinase) and membrane defects?
• How do you anticipate this experience will improve your ability to critically interpret data in the context of complex red cell disorders?
• What do you expect to learn about the clinical significance of laboratory markers in diagnosing and managing patients with suspected enzymopathies or membrane disorders?
• How will this activity build upon your existing knowledge of red cell pathology and morphology to expand your practical understanding?
• In what ways do you anticipate this experience will prepare you for the high-level interpretive and analytical responsibilities required for post-programme professional practice?

What actions will you take in preparation for the experience?

• How will you discuss with your training officer which specific investigations for enzyme or membrane disorders you will be involved in selecting and interpreting to gain clarity of what is expected?
• Which theoretical principles and laboratory guidelines (such as BSH guidelines) will you review to ensure your analytical and interpretive accuracy?
• How will you prepare for potential technical challenges, such as interpreting results in the presence of recent blood transfusions or acute haemolytic episodes?
• What resources, such as diagnostic algorithms or previous case studies, will you identify beforehand to support your ability to reach a valid interpretation?
• How do you feel about embarking on this task, and what specific areas have you identified for focused preparation to increase your confidence in this specialised area?

In action

What are you doing?

• As you select the specific laboratory techniques for investigating a suspected enzymopathy (e.g., G6PD or pyruvate kinase assay) or membrane disorder (e.g., osmotic fragility or EMA binding), what is your rationale for choosing these particular methods over others?
• What procedural steps are you currently undertaking, and why are you performing them in this specific order to ensure diagnostic accuracy?
• What real-time decisions are you making as the activity progresses, such as adjusting instrument settings or meticulously handling sensitive samples for enzyme analysis?
• Which aspects of your practice feel intuitive (e.g., routine sample preparation), and which require more conscious effort, such as the precise technical execution required for specialised membrane tests?

How are you progressing with the activity?

• How effective are your current actions in providing the data necessary to interpret the results and differentiate between various red cell disorders?
• How are you applying the principles of internal quality control (IQC) during the run to conclude that the assay performance is reliable before the results are finalised?
• What technical challenges or limitations are you identifying as the investigation unfolds (e.g., the impact of a recent transfusion on enzyme levels)?
• How does this investigation connect to your existing knowledge of the pathophysiology and function of red cell enzymes and membranes?
• What are you learning about the practical challenges of investigating these specific disorders as you handle the samples and evaluate the data?

How are you adapting to the situation?

• Based on your initial findings or observations (such as specific morphological features), what reflex tests or alternative approaches are you now considering to aid in disease classification?
• How are you adapting your communication style in the moment to ensure that you can present these complex findings clearly and accurately to a healthcare professional colleague?
• What support or guidance—such as specialist protocols or consultation with a senior scientist—do you need to resolve uncertainties or unexpected results in the data?
• Are you certain that your current actions and interpretations remain within your defined scope of practice?

On action

What did you notice?

• Summarise the key procedural elements you followed to select the most appropriate investigations for a patient with a suspected enzymopathy or membrane disorder.
• What were the significant observations or data patterns—such as control values or expected results—that you focused on during your interpretation?
• How did you evaluate the internal quality control (IQC) and external quality assessment (EQA) data to conclude that the assay performance was reliable before you finalised your results?
• What did you notice about your communication of the findings to healthcare professional colleagues, and were you able to present the differential diagnosis clearly?
• Were there any unexpected technical challenges or findings during the investigation, and how did you manage them in the moment?

What did you learn from the activity?

• What new skills or knowledge did you develop regarding the diagnostic strategies used to characterise disorders such as G6PD deficiency or hereditary spherocytosis?
• How has this experience improved your ability to describe the practical limitations of the techniques you selected, and how did this influence your final interpretation?
• In what ways did your reflection-in-action (decisions made while the task unfolded) influence the way you reached a cohesive conclusion or identified reflex tests?
• What did you learn from correlating biochemical or molecular abnormalities with the patient’s specific clinical presentation?
• How does this specific experience relate to the high-level interpretive and professional requirements of your future role as a Clinical Scientist?

What will you take from the experience moving forward?

• What areas for continued development have you identified in your ability to select appropriate investigations or to communicate complex case results to a multidisciplinary team?
• How will you apply the learning from this activity to your routine laboratory practice, particularly when dealing with atypical results or conflicting data?
• What specific ‘next steps’ will you now take, such as reviewing the latest British Society for Haematology (BSH) guidelines or attending a case-based discussion, to support the assimilation of what you have learned?
• What support or resources, such as specialist mentoring or access to reference material on rare red cell disorders, would further develop your expertise in this field?

Beyond action

Have you revisited the experiences?

• How has your understanding of the diagnostic pathways for enzymopathies (e.g., G6PD or pyruvate kinase deficiency) and membrane disorders (e.g., hereditary spherocytosis) deepened as you evaluate your initial engagement with this task?
• When comparing this experience with Observed Training Activities (OTAs) or other red cell DTAs, such as those for acquired anaemia or inherited haemoglobin disorders, what specific observable behaviours and interpretive logic have you successfully assimilated into your daily practice?
• As part of a wider review of the module, how have the connections between red cell morphology and specialized biochemical or molecular investigations become more apparent in your diagnostic approach?
• How has engaging in professional storytelling with colleagues about rare or complex cases of red cell membrane disorders changed your perspective on identifying technical limitations or resolving ambiguous results?

How have these experiences impacted upon your current practice?

• How has this activity helped you move away from seeing individual investigations as isolated incidents, instead viewing them as contributing to your overall expertise in red cell pathology?
• In what ways have you applied your knowledge of internal quality control (IQC) and external quality assessment (EQA) since the original experience to ensure that your current interpretations of assay performance are robust?
• How has your ability to describe the limitations of techniques (e.g., the impact of a recent transfusion or reticulocytosis on enzyme assays) improved the quality of the diagnostic advice you provide in your current role?
• How has this experience supported your preparation for observed ‘in-person’ assessments, such as Case-Based Discussions (CBDs) or Direct Observations of Practical Skills (DOPS) related to red cell investigations?
• Can you identify instances where your communication skills have improved when presenting results or advising healthcare professional colleagues on appropriate sample types for enzyme or membrane investigations?

How might these experiences contribute towards your future practice?

• What transferable skills, such as the critical evaluation of complex laboratory data and the synthesis of multidisciplinary findings, have you developed that will be most valuable in your future professional role?
• What clear actions for continued development have you identified, such as mastering the latest British Society for Haematology (BSH) guidelines or staying updated on molecular advancements in red cell enzymopathy?
• How has the learning from this activity provided the necessary foundations for the high-level interpretive and analytical responsibilities required for post-programme professional practice?

Relevant learning outcomes

#	Outcome
# 1	Outcome Select techniques for the investigation of clinical presentations in haematology, haemostasis and transfusion science and medicine.
# 3	Outcome Interpret the results of the laboratory investigations for cases including red and white cell disorders and haemostatic and platelet disorders, haematological malignancy and transfusion serology.
# 4	Outcome Describe the limitations of techniques applied in the investigation of clinical presentations in haematology, haemostasis and transfusion science.
# 5	Outcome Apply the principles of internal quality control and external quality assessment and draw conclusions about assay performance.
# 6	Outcome Demonstrate appropriate communication skills to present the results of investigations and cases clearly to healthcare professional colleagues.