Training activity information
Details
Perform, interpret and report antibody screening and antibody identification
Type
Entrustable training activity (ETA)
Evidence requirements
Evidence the activity has been undertaken by the trainee repeatedly, consistently, and effectively over time, in a range of situations. This may include occasions where the trainee has not successfully achieved the outcome of the activity themselves. For example, because it was not appropriate to undertake the task in the circumstances or the trainees recognised their own limitations and sought help or advice to ensure the activity reached an appropriate conclusion.
Reflection at multiple timepoints on the trainee learning journey for this activity.
Considerations
- Indirect antiglobulin test (IAT), enzyme testing
- Mixtures and high/low frequency alloantibodies
- Use of extended panels/rare cells to resolve antibody identification
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 does success look like?
- Identify what is expected of you in relation to performing, interpreting, and reporting antibody screening/identification.
- Consider how the learning outcomes apply, specifically learning outcomes which relate to selecting techniques, identifying algorithms, describing limitations, practicing according to guidelines/procedures, performing acceptance testing, and devising investigative strategies for complex antibodies.
- What specific steps define accurate screening, correct interpretation of reaction patterns, and appropriate identification and reporting of antibodies?
- What reaction patterns would suggest the presence of one or more antibodies?
- Discuss with your training officer to understand the expected depth of investigation for different reaction patterns and the reporting requirements.
What is your prior experience of this activity?
- Think about what you already know about the clinical significance of different red cell antibodies in transfusion and pregnancy. What do you know about the principles of antibody screening and identification techniques e.g., IAT, panel interpretation?
- Consider possible challenges you might face e.g., weak antibodies, multiple antibodies, cold or warm autoantibodies, antibodies to low/high frequency antigens. And think about how you might handle these.
- Recognise the scope of your own practice for this activity. When would you need to seek advice regarding complex antibody identification cases or reporting potentially significant antibodies?
- Acknowledge how you feel about performing antibody investigations, recognising their vital role in providing compatible blood.
What do you anticipate you will learn from the experience?
- Consider the specific skills you want to develop in interpreting antibody panel patterns and devising strategies for identifying complex antibodies.
- Identify specific insights you hope to gain into the relationship between antibody specificity, reaction strength, and clinical significance.
What additional considerations do you need to make?
- Have you consulted any actions identified from previous experiences with antibody testing or unexpected serological results?
- Identify important information you need to consider before embarking on the activity, such as laboratory SOPs for antibody investigation, the availability of different cell panels or reagents, patient transfusion/pregnancy history, or accessing historical patient antibody records.
In action
Is anything unexpected occurring?
- Are you noticing anything surprising or different from what you anticipate during antibody screening and identification?
- Are you encountering situations such as:
- Weak, multiple, or complex antibody patterns that resist initial identification attempts
- The presence of autoantibodies that mask the presence of underlying clinically significant alloantibodies
- An unexpected positive screen result for a patient with no known history of transfusion or pregnancy
How are you reacting to the unexpected development?
- How is this impacting your actions? Did you adapt or change your serological or interpretative strategy in the moment?
- Consider the steps you are taking in the moment, such as:
- Immediately selecting and using additional panel cells or specialised techniques (e.g., adsorption, elution) to resolve the identification
- Troubleshooting or adapting your approach to identify the antibody/ antibodies based on the evolving reaction patterns
- Seeking immediate expert advice from a senior colleague regarding the interpretation of a complex antibody pattern
- How are you feeling in that moment? For instance, are you finding it difficult to devise an investigative strategy for complex antibody identifications? Is it affecting your confidence in accurately reporting the findings?
What is the conclusion or outcome?
- Identify how you are working within your scope of practice. For example, are you successfully devising and performing investigative strategies, or needing support because the antibody is rare or complex and requires referral?
- What are you learning as a result of the unexpected development? For example, are you gaining insight into the limitations of methods or mastering the systematic interpretation of antibody panel patterns?
On action
What happened?
- Begin by summarising the process of performing antibody screening and identification. What antibodies did you identify?
- Consider specific samples that were challenging, such as multiple antibodies, weak antibodies, or antibodies reacting with few cells. How did you feel when devising the strategy to identify the antibody/antibodies?
- Include any ‘reflect-in-action’ moments where an unexpected reaction on the panel prompted you to immediately adjust your interpretation or consider additional tests.
How has this experience contributed to your developing practice?
- Identify what learning you can take from this experience regarding the patterns of reactions in antibody screening and identification panels.
- What strengths did you demonstrate, such as skills in devising and performing investigative strategies for complex antibody identifications?
- Were there knowledge gaps regarding specific antibodies or techniques e.g., titrations, adsorptions?
- Compare this experience against previous cases. Has your ability to interpret antibody panels and identify antibodies improved?
- Identify any challenges you experienced e.g., interpreting complex panels, technical issues and how you handled them.
- Did you need to seek advice or discuss the case with a senior colleague, particularly for complex or multiple antibodies?
- Did you ensure you were working within your scope of practice when identifying and reporting antibodies and their clinical significance?
- Acknowledge any changes in your own feelings now you are looking back on the experience regarding your confidence in performing, interpreting, and reporting antibody investigations.
What will you take from the experience moving forward?
- Identify the actions or ‘next steps’ you will now take, such as specific antibodies, reaction patterns, or investigative techniques you need to study further. Do you need to review case examples or guidelines for antibody identification?
- How will your approach to interpreting antibody panels change based on this experience?
- Do you need more practice in interpreting complex panels or performing specific antibody identification techniques?
Beyond action
Have you revisited the experiences?
- Considering your various experiences performing, interpreting, and reporting antibody screening and identification, have you looked back at your previous reflections on these cases?
- What specific actions did you identify to enhance your skills in this area e.g., panel interpretation strategies, recognising common antibodies, investigating complex mixtures?
- Have you implemented these actions, and can you now demonstrate improvement in identifying clinically significant antibodies?
- Have you engaged in professional storytelling or discussed cases involving complex antibody screens or identifications with colleagues or presented findings in a team meeting?
- Did the collective knowledge or feedback provided change your understanding of specific antibodies, their clinical significance, or optimal investigation strategies?
How have these experiences impacted upon current practice?
- How does the cumulative learning from performing antibody screening and identification, coupled with your ongoing reflection, contribute to your preparation for assessments such as a DOPS performing and interpreting antibody identification on a sample with more than one red cell antibody or an OCE reporting results and transfusion requirements for a patient with auto- and allo-antibodies?
- How has your expertise in antibody screening and identification developed over time?
- Are you more skilled at interpreting complex panels, correlating serological findings with clinical history, and selecting appropriate additional tests?
- How effectively can you now recognise when an antibody identification is particularly difficult or rare and requires input from senior colleagues, indicating you are working within your scope?
Relevant learning outcomes
| # | Outcome |
|---|---|
| # 1 |
Outcome
Select suitable and valid techniques for transfusion pre-compatibility testing. |
| # 2 |
Outcome
Identify sequential testing algorithms appropriate to the samples under investigation for pre-compatibility testing. |
| # 3 |
Outcome
Describe the limitations of methods used in pre-compatibility testing including sources of error and sample issues. |
| # 4 |
Outcome
Practice in accordance with guidelines and procedures relevant to pre-transfusion testing. |
| # 5 |
Outcome
Perform acceptance testing of samples requiring pre-transfusion testing and ensure samples follow appropriate testing streams relating to clinical condition. |
| # 8 |
Outcome
Devise and perform investigative strategies for complex antibody identifications and transfusion reaction investigations. |