Bruising Information

Occasionally, bruising may develop after a blood test. Our trained phlebotomists take blood carefully but unfortunately despite best practice, bruising can occur. Bruising is more likely:

• in older people

• in those taking specific medications (such as blood thinners or steroids)

• if firm pressure is not applied as directed after venepuncture

• if the arm is used for strenuous activity after the assessment (eg heavy lifting or carrying.)

The best way to prevent a bruise after a blood test is to apply firm pressure to the area for at least five minutes with clean cotton wool or gauze.

Whilst unsightly, bruising is harmless and the trapped blood will be reabsorbed by the body. This happens gradually over 10-14 days, but occasionally takes longer.

To help the bruise heal, we recommend following the R.I.C.E guidance:

Rest - allow time for the bruise to heal. Protect the bruise by avoiding heavy lifting, e.g. at the gym or carrying heavy shopping, and only light, gentle movement is recommended

Ice - do not place directly on the skin but under a cloth

Compression - pressing on the point where the needle was inserted when a bruise has developed

Elevation - if possible, raise your arm above the level of your heart when at rest

If you are experiencing any of the following you should seek further medical help:

• Severe or worsening pain

• Numbness or pins and needles to your arm, hand or finger

• Swelling that is large or increasing in size

• Painful redness/inflammation

• Coldness or paleness of your lower arm or hand of the affected arm

If you are worried, or require further information:

• Bluecrest customers can call our 24/7 GP helpline on 03450340708

• Contact NHS 111 for advice

• Speak to a GP or practice nurse