PERSONAL BLOG
Blood Culture Collection (OSCE)
Introduction
- Greet patient and introduce yourself
- Briefly explain the procedure in a patient friendly manner
- Get patient consent ✅
- Ask the patient to sit and expose their arm
- Check the patient is not any pain and if they have any allergies
- Wash hands ✋
Equipment
Disposable gloves ✋
Apron
Laboratory paperwork ✍
Transportation bag 📩
Tourniquet
Blood sampling device and blood culture bottle adapter
Anaerobic blood culture bottle
Aerobic blood culture bottle
3 cleaning swabs
Sterile gauze and plaster
Tape
Sharps bin 🗑
Preparation
- Put gloves on ✋
- Collect unpackaged equipment on a tray
- Prepare blood collection device (attach needle) 💉
- Clean top of each blood culture bottle with a new cleaning swab
- Inoculate blood culture bottles
Deciding which arm to use
Ask patient preference
Check medical records to identify anything which makes one of the arms unsuitable (e.g. previous stroke, lymphoedema, arteriovenous fistula) ✍
If one arm has an intravenous infusion, choose the other
Position a pillow under the chosen arm
Deciding which vein
- Inspect chosen arm for a suitable venepuncture site:
- Antecubital fossa’s median cubital vein is a common site
- Avoid bruised/broken skin
- Avoid the sites where 2 veins conjoin
- Extend arm
- Place 4 or 5 fingers above the chosen site and apply the tourniquet here 👉
- Palpate the chosen vein to ensure it is suitable
- Tap vein as patient clenched wrist repeatedly
- The vein should feel springy, not hard
- Release the tourniquet
- Put apron on
- Apply alcohol gel to wash your hands ✋
- Put gloves on ✋
- Clean the chosen venepuncture site with 2% chlorhexidine in 70% isopropyl alcohol
- Allow site to dry
Inserting the needle
- Reapply tourniquet to same position as before
- Uncover the needle 💉
- Pull the skin next to the chosen venepuncture site with your non-dominant hand ✋
- Inform the patient you are ready to insert the needle and they may feel a sharp scratch
- Insert the needle and the venepuncture site, at a maximum of a 30° angle 📐
- When you observe flashback, push the needle 1 to 2mm further into the lumen of the vein
- Use the wings of the butterfly needle to anchor the needle to the skin
- To the adaptor, attach the aerobic blood culture bottle
- Allow 10ml blood to fill the bottle
- Remove the aerobic bottle and replace it with the anaerobic bottle
- Allow 10 ml blood to fill the bottle
- Release tourniquet again
- Remove needle 💉
- Apply pressure with gauze or cotton wool to venepuncture site
- Ask patient to hold the gauze or cotton wool in place
- Appropriately dispose of sharps 🗑
- Apply dressing to site of venepuncture
- Appropriately discard of remaining equipment
Completion
- Tell the patient the procedure is complete ✅
- Thank patient
- Wash hands ✋
- Write patient details on blood sample bottles
- Send blood sample to laboratory
- Document details of procedure in patient’s notes ✍
Summary
- Greet the patient and explain the procedure
- Prepare by collecting the equipment, putting on PPE, washing your hands and inoculating the blood culture bottles
- Identify the more suitable arm, and a suitable venipuncture site
- Apply the tourniquet 4-5 finger-widths above the site, and palpate the vein
- Insert the needle into the lumen of the vein
- Fill the anaerobic then aerobic blood culture bottles
- Apply pressure with cotton wool then apply a plaster
- Complete the procedure by thanking the patient and appropriately disposing of waste
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