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Karyotype

Genetic tests · also printed as Karyotype, Chromosome analysis, Chromosomal analysis, Cytogenetics, Peripheral blood karyotype

Typical UK adult rangeExpected result: Not detected

46,XX or 46,XY is the usual result; the printed result is stored as text.

What this test measures

A karyotype examines the number and structure of the chromosomes under the microscope.

Why doctors request it

Requested in fertility clinics, after recurrent miscarriage, and in some developmental and blood conditions.

What commonly pushes it up

What commonly pushes it down

Everyday reasons for a value outside the range

About the sample

No fasting needed.

Written by a UK consultant physician. Typical UK adult reference ranges; your laboratory's own printed range takes precedence.

Got a report with Karyotype on it?

Upload a photo or PDF and see every line against the range your lab printed, explained in plain English. First report free.

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This is an educational summary of results you uploaded. It is not medical advice, a diagnosis or a treatment plan, and it does not replace the doctor who requested the test. If you are worried, or a result is marked outside range, discuss it with your doctor. Written and reviewed by a UK consultant physician. Reference ranges vary between laboratories.