Medical Oncologist
CION Cancer Clinics
Informed consent before a genetic test | CION Cancer Clinics
Informed consent means you agree to a genetic test only after you understand what it can find, what it cannot, and what the result could mean for your family. The form is the last step, not the first. This page explains what you should be told before signing, the separate choices on the form, and your right to take time or change your mind. At CION Cancer Clinics in Hyderabad, our oncologists review your family history with you and guide you to the right genetic counselling and testing.
NG
Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed September 2026, next review due September 2027
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On this page
- What does informed consent for a genetic test mean?
- What should you be told before agreeing to the test?
- How does the consent process usually work?
- The consent words, in plain language
- What can you say yes or no to separately?
- Four things people assume about consent
- What this page cannot tell you
- Common questions about consent
The short answer
What does informed consent for a genetic test mean?
It means you agree to the test only after you understand what it can find, what it cannot, and what the result could mean for you and your family. Signing the form is the last step. The explanation before it is what makes the consent real.
Why genetic consent is different
Most blood tests are about you alone. A genetic result is also about your parents, brothers, sisters and children, because they may share the same fault. It can affect decisions about marriage, children and insurance. It does not change over time the way a cholesterol level does. That is why the conversation before a genetic test takes longer.
Consent is a conversation, not a signature
Your counsellor should explain the test in words you understand, in your own language if needed, and then check you have understood. You can ask questions, take the form home, or talk to your family first. Nobody should rush you into signing on the day.
If you cannot explain back what the test might find, you are not ready to sign yet.Before you sign
What should you be told before agreeing to the test?
A good consent conversation covers four areas. If any is missing, ask about it.
The possible results
Every genetic test can give three kinds of answer. You should hear about all three before the sample is taken.
The three answers
- A fault was found
- No fault was found
- A change of uncertain meaning was found
What it means for your family
If a fault is found, blood relatives may carry it too. You should be told how relatives could be informed, and whether you would be willing to share the result with them.
Findings nobody was looking for
Larger tests can find a fault unrelated to the reason you were tested. You should be asked whether you want to hear about these secondary findings.
What happens to your sample and data
How long the laboratory keeps your DNA, who can see your result, and whether it may be used for research. You can usually refuse storage or research and still have the test.
Not sure whether this applies to you?
Ask an oncologistStep by step
How does the consent process usually work?
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Pre-test counselling
The counsellor draws your family tree and explains why a test might help. This is where most of the understanding happens.
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The test is explained
Which genes will be tested, what the possible results are, how long it may take and what it costs. Ask about anything that is unclear.
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You make your choices
You decide about secondary findings, storage and research, and who should receive the result. These are separate choices, each with its own tick box.
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You sign, or take time
You can sign on the day or take the form home. A signed form is normally needed before the sample is taken.
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You keep a copy
Ask for a copy of what you signed. It records exactly what you agreed to, which matters if questions come up later.
On the form
The consent words, in plain language
- Informed consent
- Agreement given after you have understood the purpose, benefits, limits and possible harms of the test.
- Secondary findings
- Gene faults found by chance that are unrelated to why you were tested. You can choose whether to be told about them.
- VUS
- Variant of uncertain significance. A change the laboratory cannot yet label as harmful or harmless.
- Germline
- Present from birth in every cell, so it can be shared with blood relatives. This is what inherited testing looks for.
- Withdrawal
- Changing your mind after consenting. You can usually stop the test before a result is issued.
- Assent
- A child's own agreement, asked for alongside the parent's consent when a child is old enough to understand.
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Separate choices
What can you say yes or no to separately?
The question on the form
What saying no means
Do you want secondary findings reported?
You hear only about the genes you were tested for
May your sample be stored?
It is destroyed once testing is complete
May your data be used for research?
Your test goes ahead exactly the same
May we share the result with your doctor?
You receive it and share it yourself
Commonly believed
Four things people assume about consent
"The form is just paperwork."
It records real choices about your sample, your data and what you want to be told. Read it, or have it read to you, before you sign.
"Once I sign, I cannot change my mind."
You can usually withdraw before a result is issued. You can also decide not to hear a result that is ready. Ask how withdrawal works for your laboratory.
"My family can consent for me."
An adult who can decide for themselves gives their own consent. Relatives can support and advise. The decision, and the signature, belong to the person being tested.
"Saying no to research means no test."
Research use is a separate choice. Refusing it should not affect your test or your care in any way.
Being straight with you
What this page cannot tell you
It cannot tell you what your own laboratory's form says. Forms differ in how long samples are kept, how data is shared and how withdrawal works. Ask your counsellor to go through the actual form with you.
It cannot settle the insurance question
India has no dedicated law on genetic discrimination in insurance or employment. The position has been argued in court rather than settled by statute. Raise this with your counsellor before testing, not afterwards. Some people choose to arrange cover first.
Who this does not apply to
Tumour testing, which looks for changes only inside a cancer to guide treatment, has its own consent and is covered under targeted therapy. This page is about inherited testing. What any result eventually means for you is a question for the counsellor who ordered the test.
If a form is put in front of you without an explanation, it is fine to say you need more time.Questions we are asked
Common questions about consent
Do I have to sign on the day?
No. You can take the form home, talk to your family and come back when you are ready. If you already have cancer and a result could change your treatment, ask your counsellor how much time you realistically have.
Can the form be explained in Telugu?
Yes, and it should be if Telugu is your main language. Consent only counts if you understood it. Ask for a Telugu-speaking counsellor or a trained interpreter, rather than relying on a relative to translate.
Who gives consent for a child?
A parent or guardian gives consent, and an older child is asked for their own agreement too. Testing children for faults that matter only in adult life usually waits until they can decide for themselves.
Can I refuse to hear certain results?
Often, yes. You can usually say no to secondary findings, meaning faults unrelated to why you were tested. The result for the genes you were tested for will still be reported to you.
Will my relatives be told without my permission?
Your result is confidential. Your counsellor will encourage you to share it where it could help relatives, and give you a letter to pass on. Discuss any worries about this before you sign.
What if I change my mind after the sample is taken?
Tell your counsellor as soon as possible. Testing can usually be stopped before a result is issued. If the result is already ready, you can still choose not to hear it.
Does consent cover testing my stored tissue later?
Only if the form says so. Any new test on a stored sample for a different purpose should need fresh consent. Ask what your form allows, and keep a copy of what you signed.
Who can see my genetic result?
Usually you, the doctor who ordered the test and the team caring for you. Anyone else should need your permission. Ask how the result is stored and who can reach it.
Your Specialists
Meet CION's oncologists. Bring your family history or genetic report to them.
Our medical oncologists see people with a strong family history of cancer, arrange genetic counselling and testing where it fits, and plan the checks that follow.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
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Sources
- MedlinePlus Genetics — What is informed consent?
- MedlinePlus Genetics — What are secondary findings from genetic testing?
- National Cancer Institute — Genetic Testing for Inherited Cancer Susceptibility Syndromes
- Indian Council of Medical Research — National Ethical Guidelines for Biomedical and Health Research Involving Human Participants
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
What you are consenting to: storage, reuse and researchWhat happens to your sample after the testDeciding whether you want secondary findings reportedThe one tick box most people are unsure aboutChanging your mind: withdrawing from testingYour right to stop, and how it worksPre-test counselling: what is coveredThe conversation that comes before the form
Talk to us
Have a consent form you do not understand?
Bring the form and we will arrange for a counsellor to go through it with you, in Telugu if you prefer. One helpline serves every CION centre.