Blood tests are a simple and effective way to check your health. Whether you’re using a home blood test kit or booking an appointment with a professional, understanding the process can make it easy and stress-free. Here’s everything you need to know about getting your blood tested with Youth Revisited.
How to Collect Your Blood Sample
There are two main ways to collect a blood sample:
1. Finger Prick
This method is quick and easy. Using a small lancet, you collect blood from your fingertip into a small collection tube. Our home blood test kits include clear step-by-step instructions and everything you need in the box — lancets, collection tube, plaster, cleansing wipe, return packaging and lab form. Finger-prick works well for most nutritional, hormone and general health markers, though a small number of tests (very large panels or certain specialist markers) require a venous sample. See how it works for a full walkthrough.
2. Venous Collection
This involves taking blood from a vein in your arm and is the preferred method for larger or more comprehensive panels such as the Health Optimisation Blood Test or the Full Monty. If you know someone qualified (a nurse, paramedic, phlebotomist or GP), you can request a Free Venous Kit at checkout and they can draw the sample for you. If not, select our Phlebotomy Service at checkout and a trained professional will visit your home or workplace to take the sample for a small fee. Clinic appointments at partner locations across the UK are also available.
Important: Ensure your sample is clearly labelled with your full name and date of birth, and that blood reaches the required fill line on the tube. Samples without proper labelling or with insufficient blood may not be processed by the laboratory. If you need help at any point, contact us at info@youth-revisited.co.uk or call 07927 989791.
Do I Have to Fast?
Certain tests require fasting for accurate results — most commonly those including cholesterol, triglycerides, glucose or insulin. Fasting usually means no food or drink other than plain water for 8–12 hours before your sample is taken. Always confirm the specific instructions for your chosen test when you book, as they’ll be included with your kit and confirmation email. If you take regular prescribed medication, continue as normal unless your GP has advised otherwise.
When Should You Take Your Sample?
For the best results, collect your sample on the day you plan to send it. Monday to Thursday is ideal to avoid postal delays and to ensure your sample reaches our UKAS-accredited partner laboratory while it’s still fresh. If you must take your sample over the weekend, refrigerate it overnight in a sealed bag and gently invert the vial 8–10 times the next morning before posting to mix it properly.
Timing can also matter for accuracy: certain hormone tests (particularly cortisol and testosterone) are best taken in the morning, and female hormone panels are often timed to a specific day of your menstrual cycle. Your test instructions will flag anything time-sensitive.
Using a Home Blood Test Kit
Your test kit comes with detailed instructions to make the process straightforward. Set aside 15–20 minutes in a warm, quiet space, drink plenty of water beforehand, and warm your hands (running them under warm water or a short brisk walk both work) to improve blood flow.
If you choose venous collection, our Phlebotomy Service ensures a qualified professional collects your sample. Book this option at checkout and we’ll prioritise your appointment, typically within seven working days. Costs range from £40 to £60 depending on your location.
Understanding Your Results
Your test report will include:
- Biomarker name
- Your result
- Normal range (based on age and sex)
- Measurement units
Anything outside the normal range will be highlighted. Every result also comes with a plain-English AI report that explains what each marker means in context, and if you opt for the full explanation report you’ll receive a detailed overview of any out-of-range markers prepared by our clinical team. Results are also stored in your account dashboard so you can track markers over time.
If a result is significantly outside the reference range or is causing you concern, we recommend sharing it with your GP or booking a consultation with one of our specialists.
Common Issues with Blood Samples
Here are some problems that can occur and how to avoid them:
1. Haemolysed Sample: Red blood cells break due to improper handling — often from squeezing the finger too hard or shaking the tube. Collect gently and invert (don’t shake) the vial to mix.
2. Insufficient Blood: Ensure you collect enough blood to reach the fill line. Warm hands, good hydration and gentle “milking” of the finger from base to tip all help.
3. Clotted Blood: Blood needs to mix with the anticoagulant in the tube quickly. Gently invert the tube 8–10 times immediately after filling, and avoid pausing mid-collection where possible.
4. Unlabelled Samples: Always label your sample with your full name and date of birth, and include the provided lab form in the return packaging.
5. Mismatched Information: Double-check that the label on the tube matches the lab form exactly.
6. Postal Delays: Post your sample the same day you collect it, ideally before the last collection at your local Post Office, and use the pre-paid Royal Mail Tracked packaging supplied.
If you face any issues, our team is here to help — and in most cases we’ll send out a free replacement kit.
Is Your Data Safe?
At Youth Revisited, your privacy is a priority. All personal and health information is stored securely, encrypted in transit and at rest, and accessible only to authorised personnel. We’re fully compliant with UK GDPR, and samples are processed in a UKAS-accredited UK laboratory. You can read more in our Privacy Policy.
How to Book Your Blood Test
Booking a test has never been easier. Visit our website to browse the full range of tests or use our Find My Test tool if you’re not sure where to start. You can also chat with our AI test finder, or call us on 07927 989791 (7am–7pm, 7 days a week).
Why Choose Youth Revisited?
At Youth Revisited, we’re committed to making blood tests convenient and reliable. From at-home blood test kits to professional phlebotomy services, home visits and gym clinic appointments, we ensure you have everything you need for a smooth experience. Whether you’re looking to book a blood test, monitor your health with regular blood work, or check your vitamin levels, we’ve got you covered — with same-day sample processing, doctor-led support and AI-explained results.
Medical disclaimer
This article is intended for general information and educational purposes only. It is not a substitute for professional medical advice, diagnosis or treatment. Blood test results should always be interpreted in the context of your full medical history, and any abnormal, unexpected or concerning results should be discussed with a qualified healthcare professional or your GP. Do not start, stop or change medication, supplements or treatment based on a private blood test result alone. If you experience severe or persistent symptoms, please seek medical attention promptly. Youth Revisited provides private blood testing services in the UK to support informed health decisions alongside professional clinical guidance.