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Printable Handouts
Navigable Slide Index
- Introduction
- Objectives
- Taking, drawing, and using a family tree
- Why take a family tree?
- ‘Family tree’ or ‘pedigree’?
- How should the information be recorded?
- Standard pedigree symbols and lines
- Additional notation
- What information should you collect?
- What other information should you collect?
- Drawing a family tree
- Add information on the other side of the family
- Psychosocial aspects of taking a family tree
- Emotions linked with a family history of a genetic condition
- Practical advice on taking a family history
- Examples of clear questions
- Practical advice on taking a family history
- Challenging situations
- Suggested exercises
- Using a family tree
- What a professional does with the family tree depends on their role
- What does a GP need to look for in the family history?
- What happens when Genetics receives the referral?
- Clinical scenario: Importance of taking a thorough family history
- Screening based on maternal family history
- Screening based on expanded family history
- Summary
- Acknowledgements
Topics Covered
- The reasons for taking a family history
- Family tree vs. pedigree
- Principles of drawing a family tree
- Psychosocial aspects of taking a family tree
- Gathering information of a three-generation family tree
- The significance of the information from a family tree and implications for the family
Talk Citation
Hanson Pierce, H. (2021, February 24). Taking, drawing, and using a family tree [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved October 7, 2024, from https://doi.org/10.69645/FTYI3279.Export Citation (RIS)
Publication History
Financial Disclosures
- Dr. Heather Hanson Pierce has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.
Other Talks in the Series: Introduction to Human Genetics and Genomics
Transcript
Please wait while the transcript is being prepared...
0:00
My name is Heather Hanson Pierce,
I'm a principal genetic counsellor and education and training
lead at the Clinical Genetics Department at Addenbrooke's NHS Trust.
Today, I'd like to be presenting:
taking, drawing, and using a family tree.
0:15
The objectives of this presentation.
At the end of the presentation
the participants should be able to:
first, be aware of the reasons for taking a family history;
to also be able to gather the information in a structured way,
to enable them to draw a three-generation family tree;
and also to understand the significance of the information that
they've gathered from the family tree, and the implications for the family.
0:39
For taking, drawing, and using a family tree,
the topics I'd like to cover are:
firstly, why is a family tree needed?;
secondly, I'd like to review the symbols and technique used to gather a family tree;
I'd like to review the psychosocial considerations in
taking a family tree;
and then lastly, we will do some suggested exercises in taking a family tree;
and then also reviewing
risk-assessment techniques, and analysing the data that you've gathered.
1:09
Why do we take a family tree?
There are many reasons to take a family tree.
One is to get information that's key to assessment of the genetic risk in a family.
It also shows the disease distribution at a glance,
so it makes it easier to analyse the data
than viewing it in longhand.
It aids the diagnosis if a genetic condition is suspected,
it gives clues to the inheritance pattern.
It explains family relationships, which is important
for developing rapport with the patient.
It identifies who may be at risk,
it records the situation at that time,
so it is a static recording of the family history,
and it also helps you get to know the family,
so again, developing rapport with the patient.