PUID: 64 || PLAB 2 Mock 4 :: CounselingCondition10: Huntington's Disease (2nd Attempt)

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Summary

This PLAB 2 scenario focuses on counselling a patient worried about Huntington’s disease after a family member’s diagnosis. The candidate is expected to demonstrate empathetic communication, structured data gathering, clear explanation of autosomal dominant inheritance, discussion of predictive testing and reproductive options, and patient-centred counselling.

The scenario heavily assesses interpersonal skills, explanation skills, logical consultation structure, and the ability to simplify complex genetic concepts into understandable language for patients.

Key Points

Understanding Huntington’s Disease

• Huntington’s disease is a progressive neurodegenerative genetic disorder.

• It affects:

  • Movement and coordination

  • Memory and cognition

  • Behaviour and emotions

• Symptoms usually develop later in life, commonly between ages 30–50.

• The disease gradually worsens over time.

• There is currently no cure, but symptoms can be managed supportively.

Genetics and Inheritance

• Huntington’s disease follows an autosomal dominant inheritance pattern.

• A person receives:

  • One copy of genes from the mother

  • One copy from the father

• If one parent carries the faulty Huntington’s gene, there is a:

  • 50% chance of passing it to each child.

• Only one faulty gene is needed for the disease to develop.

• Symptoms may appear at different ages even within the same family.

• Not all individuals progress similarly.

Simple Patient-Friendly Explanation

“You inherit one set of genes from each parent. If one of those genes carries the Huntington’s mutation, there is a chance the condition may develop later in life.”

Important Data Gathering Areas

Emotional Exploration

• Explore the patient’s fears and concerns:

  • Fear of developing the disease

  • Anxiety about future disability

  • Concern regarding children

  • Psychological distress from witnessing family illness

• Ask:

  • “How are you coping with your mother’s diagnosis?”

  • “What worries you most about this condition?”

ICE Structure (Ideas, Concerns, Expectations)

The feedback strongly emphasised the importance of using ICE because it saves time and naturally reveals hidden concerns.

Benefits of ICE

• Reduces unnecessary direct questioning

• Helps identify:

  • Fertility concerns

  • Family planning concerns

  • Anxiety about inheritance

  • Expectations from the consultation

Example

• “What are your biggest concerns today?”

• “Were you hoping for any specific help or testing?”

Family History

A detailed pedigree-style history is important.

Ask About

• Mother

• Father

• Grandparents

• Siblings

• Children

• Extended family history

Clarify

• Who was affected?

• Age at diagnosis

• Symptoms experienced

• Pattern of inheritance

Communication Skills Highlighted in Feedback

Maintain Professional Flow

The examiner feedback highlighted avoiding “thinking aloud” or analysing the diagnosis openly during history-taking.

Avoid

• Repeating findings aloud unnecessarily

• Showing excitement at positive findings

• Breaking character

• Sounding analytical instead of supportive

Instead

• Stay calm and professional

• Internally process findings

• Continue natural questioning

Summarising During Consultation

Summarising is an excellent rescue strategy if stuck during the station.

Benefits

• Organises thoughts

• Builds rapport

• Confirms understanding

• Generates further relevant questions

Example

“So from what you’ve told me, your mother was diagnosed around the age of 50 and has been experiencing coordination and memory problems…”

This often naturally leads into psychological exploration or future planning questions.

Important Considerations

Avoid Stock Phrases

Examiners dislike rehearsed communication.

Avoid Excessive Use Of

• “Everything is confidential”

• “Is that okay?”

• “Bear with me”

• “May I ask a personal question?”

These can sound unnatural and waste time.

Be Natural and Patient-Centred

• Listen actively

• Use genuine empathy

• Respond to cues appropriately

• Avoid robotic consultations

Good Examples

• “That sounds incredibly difficult.”

• “I can understand why this is worrying for you.”

Time Management

The station is short and focused.

Candidates Lose Marks By

• Asking irrelevant questions

• Over-explaining

• Repeating information

• Using memorised scripts

Candidates Gain Marks By

• Logical structure

• Relevant focused questioning

• Smooth transitions

• Efficient explanations

Diagnostic Approach

Step 1 – Build Rapport

• Introduce yourself

• Confirm name and age

• Explore emotional impact

Step 2 – Explore Present Concerns

• Why has the patient attended?

• What triggered the consultation?

• What are they worried about?

Step 3 – Family History

• Identify affected relatives

• Clarify inheritance pattern

• Ask about symptoms and age of onset

Step 4 – Explore Symptoms

Ask about:

• Movement problems

• Mood changes

• Memory problems

• Behavioural changes

• Functional impairment

Step 5 – ICE

Explore:

• Ideas

• Concerns

• Expectations

Step 6 – Explain Condition

Discuss:

• Genetic nature

• Autosomal dominant inheritance

• Late onset

• Variability in symptoms

Step 7 – Discuss Testing

Explain:

• Predictive genetic testing

• Counselling before testing

• Psychological implications

Management

Immediate Management

• Acknowledge emotions

• Provide reassurance and support

• Offer information gradually

Genetic Counselling

Referral to:

• Genetic counsellor

• Neurology specialist

Predictive Genetic Testing

• Voluntary testing

• Requires counselling beforehand

• Important psychological preparation

Reproductive Options

Pre-implantation Genetic Diagnosis (PGD)

• IVF-based technique

• Embryos tested before implantation

• Only unaffected embryos implanted

Other Options

• Adoption

• Prenatal testing discussions

Supportive Care

If diagnosed:

• Physiotherapy

• Occupational therapy

• Psychological support

• Speech and language therapy

• Social support services

Safety Netting

• Encourage follow-up

• Offer support resources

• Advise return if symptoms develop

• Provide emotional support pathways

Communication Skills

Key Skills Expected

• Active listening

• Empathy

• Clear explanation

• Non-judgemental attitude

• Structured consultation

Use Simple Language

Avoid jargon unless explained.

Instead of:

• “Autosomal dominant mutation”

Say:

• “A faulty gene that can be passed from parent to child.”

Check Understanding

• “Does that explanation make sense?”

• “Would you like me to go over that again?”

Emotional Validation

• “Many people in your situation feel anxious.”

• “It’s understandable to worry about future children.”

Ethical Considerations

Consent for Testing

• Testing must be voluntary

• Patient must understand implications

Confidentiality

Maintain strict confidentiality standards in line with GMC guidance.

Psychological Impact

• Genetic diagnoses can cause major emotional distress

• Assess coping strategies

• Consider mental health support

Family Implications

• Diagnosis affects relatives

• Sensitive counselling required

• Respect patient autonomy

Examiner-Focused PLAB 2 Tips

What Examiners Want

• Logical structure

• Natural communication

• Relevant questioning

• Focused counselling

• Efficient time management

Common Mistakes

Avoid

• Sounding rehearsed

• Overusing empathy phrases

• Overexplaining genetics

• Breaking professional flow

• Thinking aloud

• Asking irrelevant questions

These are repeatedly highlighted in examiner guidance.

Additional Resources

• GMC Good Medical Practice Guidance

• Examiner Top Tips for PLAB 2

• Understanding PLAB 2 Results and Marking Domains

• NICE Guidance on Huntington’s Disease

• NHS Genetic Counselling Services