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Guthrie Test


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check_circle1 test included
schedule9 day turnaround   info
invert_colors Venous blood sample    info
Special Instructions
Contact Medichecks prior to ordering this test online.

Guthrie Test

About this test

A Guthrie test is a blood test which is carried out on newborn babies. The test is used to detect an inherited genetic disorder called phenylketonuria.

The disorder is caused by a defect in the metabolic pathway which breaks down the amino acid phenylalanine. If untreated, phenylketonuria can cause severe intellectual disability, and early detection via this test is vital.

A Guthrie test is also used to screen for other diseases in addition to phenylketonuria. Additional conditions that may be tested for include cystic fibrosis, congenital hypothyroidism, and sickle cell anaemia.

How it works

Collect Sample

We send you an easy-to-use kit to collect your blood sample.

Post Sample

Post your sample to our lab in the prepaid envelope provided.

View Results

View results securely in your own personal dashboard.

Important Information

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.

Tests Included

Blood sample collection kit

We will send you your Guthrie Test blood sample collection kit together with the details of a convenient clinic where you can go and have your sample taken.

Postage & packaging

Your Guthrie Test includes 1st class postage and packaging for you to send your blood sample directly to our laboratory for analysis. If you live in an area where you cannot rely on the post or you simply want to ensure that your sample arrives at the laboratory the following day, you may wish to send your blood sample guaranteed next day delivery for extra reassurance.

Private laboratory analysis

Your blood sample will be analysed at one of our chosen laboratories. You can be assured of fast, accurate results from one of our accredited independent providers of clinical diagnostic tests.

Interpretation of results

Our medical team will comment on out-of-range blood results and give you follow-up advice where necessary. If you need it, a PDF copy of your Guthrie Test results can be downloaded for your doctor.

Secure online account with

Once you have placed your order you will receive login details to where you can manage your account, track your orders and view your Guthrie Test results.

Health and Lifestyle tracker

Stay motivated by filling in your online health and lifestyle questionnaire and seeing how improvements in your lifestyle can influence your results. Your medical and family history gives us vital information when interpreting your results.

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