Karyotyping
Private blood karyotyping in London for £678, examining chromosome number and visible structure for selected numerical and structural abnormalities.
Turnaround time
4 weeks
Biomarkers count
1
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Overview of the Karyotyping Test
Karyotyping is a specialist chromosome analysis performed using cells from a blood sample.
Human cells normally contain 46 chromosomes arranged in 23 pairs.
A conventional karyotype examines the number and visible structure of these chromosomes and can identify selected numerical abnormalities and larger structural rearrangements.
The test may be requested during fertility or reproductive investigations, following recurrent pregnancy loss, where a chromosome condition is suspected or when there is a relevant family history.
Karyotyping is different from DNA sequencing.
It is designed to detect chromosome changes large enough to be visible using cytogenetic analysis and will not identify every small genetic variant or single-gene disorder.
A normal karyotype therefore does not exclude all genetic conditions.
The Karyotyping test costs £678.
What Does the Karyotyping Test Check?
Karyotyping examines chromosome number and visible chromosome structure. This test measures 1 specialist genetic investigation.
Karyotyping / Chromosome Analysis
Examines the number and visible structure of chromosomes to identify selected numerical chromosome abnormalities and larger structural rearrangements.
Who May Benefit From the Karyotyping Test?
Karyotyping may be useful when a clinician or patient requires assessment for chromosome abnormalities detectable by conventional chromosome analysis.
People undergoing fertility investigations - Certain chromosome abnormalities can be associated with infertility.
People with recurrent pregnancy loss - Parental chromosome rearrangements may occasionally be relevant.
People with a known family chromosome rearrangement - Testing can determine whether the same visible rearrangement is present.
People undergoing reproductive genetic assessment - Karyotyping may form one part of a broader investigation.
People with a suspected numerical chromosome abnormality - Conventional chromosome analysis can assess chromosome number.
People advised by a clinical geneticist or fertility specialist to undergo karyotyping - The result can support more detailed genetic counselling.
How to Prepare
Genetic testing is most informative when the laboratory is given the reason for testing and relevant family information.
If a particular familial rearrangement is already known, provide a copy of the previous genetic report where possible.
Symptoms and Reasons to Consider the Karyotyping Test
Karyotyping is usually requested because of reproductive, developmental or family-history information rather than one particular symptom.
Unexplained infertility - Chromosome analysis may form part of selected fertility investigations.
Recurrent miscarriage - A balanced parental chromosome rearrangement can occasionally contribute to pregnancy loss.
A known chromosome rearrangement in a close relative - Testing may establish whether the same rearrangement has been inherited.
Previous pregnancy affected by a chromosome abnormality - Parental analysis may sometimes be recommended.
Specialist genetic referral - A clinical geneticist may request conventional chromosome analysis for a specific reason.
A reproductive clinic has requested a karyotype - The result may be required before certain fertility treatments.
A normal karyotype does not exclude small chromosome changes, single-gene conditions or all inherited disorders.
More detailed genetic testing may be required depending on the clinical question.
How to Book Your Karyotyping Test
Karyotyping can be arranged as a specialist private genetic blood test through London Blood Tests.
Choose the Karyotyping Test
Select the £678 chromosome analysis.
Select your sample collection option
Choose in-clinic phlebotomy (+£35) or a home visit from a phlebotomist (+£60).
Attend your appointment
The required specialist blood specimen is collected.
Laboratory analysis
Cells are processed and chromosomes are examined using cytogenetic analysis.
Receive your results securely
Your authorised chromosome-analysis report is returned when laboratory assessment is complete.
When Will I Receive My Results?
Results are generally expected within approximately 3–4 weeks.
Karyotyping takes longer than routine blood chemistry because viable cells require specialist cytogenetic processing and chromosome examination.
Occasionally, additional laboratory work may extend the final reporting period.
Understanding Your Results
A normal result means no chromosome-number or structural abnormality detectable at the resolution of conventional karyotyping was identified.
An abnormal result may show an additional or missing chromosome or a visible structural change such as a translocation or another rearrangement.
Some rearrangements may be balanced, meaning no obvious chromosome material is lost or gained, but can still have reproductive implications.
An abnormal or unexpected result may require genetic counselling.
A normal result cannot exclude genetic changes that are below the resolution of a conventional karyotype.
Why Book With London Blood Tests?
London Blood Tests provides private access to specialist chromosome analysis through an established genetics laboratory pathway.
Conventional chromosome analysis - The test examines chromosome number and visible structure.
Relevant to selected fertility investigations - Karyotyping can be useful where chromosome rearrangement is being considered.
Useful following recurrent pregnancy loss - Parental chromosome analysis can form part of specialist investigation.
Professional genetic sample collection - The required specimen is collected and handled appropriately.
Secure genetic reporting - Results can be shared with your fertility specialist, GP or genetic clinician.
Clear pricing - Karyotyping costs £678.
Private Karyotyping Blood Test in London
London Blood Tests provides private Karyotyping for £678.
The test performs specialist chromosome analysis using a blood sample.
Results are generally expected within approximately 3–4 weeks.
Where a clinically significant chromosome finding is identified, specialist genetic interpretation may be recommended.