How to Do a Finger-Prick Blood Test at Home Safely

Have you ordered a finger-prick blood test? If so, you will want to know exactly how to do a finger prick blood test at home. The good news is that finger-prick blood test instructions are straightforward and easy to follow, and this article will walk you through the prep, technique, and aftercare. By the end, you will know how to do a home blood test with stress-free ease.

Plus, if you use the kits from Repose Healthcare, you can rest assured your sample with be sent to UK-accredited labs that use clinically validated methods, so you can be sure you receive results comparable to a clinic blood test.

What is a Finger-Prick Blood Test?

Finger-prick home blood testing kits involve creating a small puncture on the fingertip with a sterile lancet to collect small droplets of blood into a tube or onto a card, and, from there, the sample is sent to a UK-accredited laboratory. When comparing finger-prick vs venous blood tests, the finger-prick one takes a lot less blood.

Many routine tests can be done accurately from finger-prick blood tests, including Repose’s home blood testing kits for FBC, B12, liver, and iron status.

Is it Safe to do a Finger-Prick Blood Test at Home?

It’s normal to wonder: Is a finger-prick blood test safe? Is it safe to do a blood test at home?

Fortunately, the answer is – yes, it is considered very safe, assuming you follow hygiene instructions such as only using lancets once and performing the sample-taking process on a clean surface. When it comes to finger-prick safety, it’s all about following instructions.

Of course, there are some minor home blood test side effects, such as a brief sting and a small bruise, but basic aftercare, such as using a plaster, is enough to manage this. Lancet safety is easy enough.

If you have a bleeding disorder or are on strong blood thinners, always consult with a doctor before doing any sort of blood test.

Before You Start – How to Prepare Yourself and Your Space

Here, learn how to prepare for a finger-prick blood test. Preparing for a home blood test involves:

• Choosing a well-lit, low table to rest your hands (this is the best setup for finger prick test)
• Laying out everything from the kit first
• Drinking water 20-30 minutes beforehand
• Warming hands before blood test
• Relaxing
• Doing some light exercise to stimulate blood flow

You might wonder – do I need to fast for home blood test? Most blood tests do not require fasting, but if they do, it should be stated in the instructions.

Step-by-Step: How to Do a Finger Prick Blood Test at Home Safely

This simple step-by-step guide will make taking a finger-prick blood test at home as straightforward as possible.

Step 1 – Read the Instructions and Check Your Kit

The first step is to always read blood test instructions carefully. Read the leaflet in full so you have all the information you need, and pay special attention to expiry dates (do not use an expired test). Ensure all labels and names are correct, and check if you need to register the test online before starting.

Step 2 – Wash and Dry Your Hands Thoroughly

Next, you need to wash hands before finger prick. Ideally, use warm water to help blood flow, and wash with soapy water. Make sure your hands are fully dry before you take the test. Also, avoid using any alcohol gel before you prick the finger, as it can sting more and affect the blood flow.

Step 3 – Choose the Best Finger and Spot to Prick

The best finger for a finger-prick blood test is either the ring or middle finger of the dominant hand. Regarding where to prick your finger, it’s best to prick the side of the fingertips, as this gives better blood flow and is typically less painful – this is all based on NHS guidance.

Step 4 – Use the Lancet Correctly

Knowing how to use a lancet at home is simple when you follow finger prick lancet instructions. First, you either twist or remove the cap, then you press the lancet firmly against the side of the finger and click once. The lancet is a single-use item only – never use twice.

Step 5 – Encourage Blood Flow Without Squeezing Too Hard

Regarding how to get enough blood from finger prick, you should try the milking technique, which is the best method for massaging finger for blood test. It involves gently massaging the base of the finger towards the tip while keeping the hand below elbow level. Avoid actively squeezing at the puncture site as this may dilute the sample. You should also wipe away the first drop of blood and then collect the subsequent drops.

Step 6 – Fill the Collection Tube to the Mark

When it comes to how to fill home blood test tube, you’ll need to hold the tube at a slight angle and let the drops fall in. Regarding how much blood is needed for finger prick, that should be indicated by the line. In some cases, mixing may be required.

Step 7 – Stop the Bleeding and Tidy Up

Stopping bleeding after a home blood test involves pressing a clean tissue or plaster on the site for several minutes until the bleeding stops. From there, safely dispose of the lancet and packaging in your usual household waste. Finger prick aftercare is minimal as it’s just a small prick of a wound – a plaster will suffice!

Commonly Made Mistakes to Avoid (So Your Sample Is Usable)

The most common finger prick blood test problems are easily avoided. If you want to avoid an insufficient blood sample and a rejected lab sample, steer clear of these errors.

• Not drinking enough water
• Having cold hands
• Pressing the lancet too lightly
• Squeezing too hard at the puncture (creating a haemolysed sample)
• Underfilling the tube
• Waiting too long to post

Don’t worry about getting it wrong the first time, as most kits include extra lancets.

What Happens After You Take Your Sample

So, what happens after home blood test?

• Labelling the tube: If the tube isn’t labelled already, you will need to label it. This should be included in the instructions.
• Sealing the package: You’ll then need to seal the blood sample in the protective packaging before placing it into the prepaid envelope.
• Posting the sample: You should always post the same day, ideally before the last collection or from a priority mailbox.

Once the sample is posted, the lab processing time is about one to three days. Then, online blood test results are available to you and will provide reference ranges and comments. If anything is abnormal, sharing results with your GP is important.

Popular Tests You Can Do with a Finger-Prick Sample

There are several at home blood tests you can do with finger prick. Some of the most common finger prick blood tests include iron and B12 deficiency checks, as well as tests for tiredness and other symptoms like pale skin and restless legs. Here are some options.

Full blood count at-home blood test: provides a broad overview of red and white cells and platelets. It is usually used for anaemia, infections, and general health screenings.

Vitamin B12 home testing kit: This test checks B12 levels, which is helpful if you are tired, are vegan or vegetarian, or are simply worried about this deficiency.

Liver function home testing kit: This provides a panel of enzymes and proteins to check for liver and blood health from home – in particular, liver inflammation and damage (perhaps from alcohol or medications).

Iron status profile at-home blood test: This checks for iron, TIBC, and ferritin levels to check for either an overload or deficiency. It’s a sensible test if you have fatigue, pale skin, or restless legs.

Remember that these tests cannot replace a full medical assessment. Instead, they are a great way to understand your health a little better and act as a conversation starter between you and your GP.