Venepuncture in children can be challenging for both healthcare professionals and families. Anxiety, movement, small veins, and previous negative experiences may all make blood sampling more difficult.
Good preparation, communication, and technique can significantly improve success rates and reduce distress for the child.
This article provides a practical overview of paediatric venepuncture, including communication strategies, preparation, equipment considerations, and practical tips. This article serves as the third installment in our phlebotomy and venepuncture article series.
Contents
Why Paediatric Venepuncture is Different
Children are not simply “small adults”. Venepuncture may be more difficult due to smaller veins, anxiety, fear, movement during procedures, previous traumatic experiences, and difficulty understanding what is happening.
Children are also more likely to become distressed if multiple attempts are required, therefore a calm and patient approach is essential.
Consent and Communication
Communication should always be adapted to the child’s age and level of understanding.
Introduce yourself to both the child and parent or carer, and explain the procedure using simple and reassuring language. Although it is important to be honest about discomfort, avoid using alarming language where possible.
Older children often respond well when given some sense of control, such as choosing which arm to use where clinically appropriate.
Parents can also play an important role in reassuring and calming the child throughout the procedure.
Preparing the Child
Preparation can significantly improve cooperation and reduce distress.
Where appropriate, topical anaesthetic cream may be used prior to venepuncture. Ensuring the child is warm, comfortable, and well-positioned can also improve vein visibility and procedural success.
Helpful strategies include:
- Ensuring good lighting and positioning
- Encouraging hydration if clinically suitable
- Preparing all equipment beforehand
- Minimising delays once the child is ready
- Keeping the environment calm where possible
Some children tolerate the procedure better sitting upright, whereas others may be safer lying down.
Equipment
The equipment used is similar to adult venepuncture, although smaller equipment is often required.
This may include:
- Butterfly needles
- Smaller syringes
- Paediatric blood bottles
- Smaller tourniquets
Butterfly needles are commonly useful in paediatric patients due to improved control and manoeuvrability.
Choosing a Vein
Vein selection depends on the child’s age, size, and clinical condition.
Common venepuncture sites include the antecubital fossa, dorsum of the hand, and forearm veins. In infants and very young children, scalp veins or foot veins may occasionally be used by appropriately trained staff.
Try to palpate veins carefully rather than relying solely on visual inspection. Warmth, good lighting, and correct positioning can all improve vein visibility.
Step-by-Step Procedure
- Confirm patient identity
- Explain the procedure to both the child and parent or carer
- Prepare all equipment in advance
- Position the child safely and comfortably
- Apply the tourniquet gently
- Identify and palpate a suitable vein
- Clean the skin and allow it to dry fully
- Anchor the vein carefully
- Insert the needle bevel-up using appropriate technique
- Collect the required blood samples
- Release the tourniquet before removing the needle
- Apply pressure to the site
- Dispose of sharps safely
- Label samples immediately
- Praise and reassure the child afterwards
Arm Hold and Positioning
One of the most important aspects of paediatric venepuncture is maintaining safe and stable positioning throughout the procedure. Sudden movement during needle insertion can make venepuncture unsuccessful and increase the risk of injury.
A good arm hold helps stabilise the limb, prevent sudden movement, improve first-attempt success, and reduce procedure time.
In younger children, positioning on the parent’s lap is often the safest and most effective approach. The child can sit semi-hugging the parent, allowing the parent to provide reassurance while also helping maintain positioning throughout the procedure.
A common mistake is for parents to focus entirely on holding the chosen arm still. In reality, movement of the head, torso, or legs can also destabilise the child during venepuncture and make the procedure unsafe or unsuccessful.
Parents should therefore be encouraged to:
- Keep the child’s body close to them
- Support the child’s head and shoulders
- Prevent kicking or twisting of the legs
- Help maintain overall stillness throughout the procedure
The arm itself should be supported firmly but safely. Depending on the child’s age and level of cooperation, additional assistance from another healthcare professional may still be required.
Important principles include:
- Explaining the need for stillness beforehand
- Positioning the child comfortably and safely
- Ensuring the arm is well supported
- Avoiding excessive force
- Stopping if the situation becomes unsafe
If a child is extremely distressed, combative, or repeatedly moving despite appropriate support and reassurance, repeated attempts should be avoided.
In these situations, escalation to a senior colleague or experienced paediatric practitioner is appropriate.
Pain Reduction and Distraction
Distraction techniques can significantly reduce anxiety and improve cooperation. Helpful strategies may include:
- Conversation
- Toys
- Videos or tablets
- Breathing exercises
- Counting games
- Singing
- Parent distraction and reassurance
Topical anaesthetic creams may also reduce pain when time allows.
Safe positioning remains important throughout the procedure to reduce sudden movement and minimise injury risk.
Common Difficulties
Anxiety and Distress
Children may cry, resist, or become distressed before or during venepuncture. Remaining calm and avoiding rushing the procedure is important.
Difficult Venous Access
Paediatric veins are often smaller and more mobile than adult veins. Helpful strategies include:
- Using butterfly needles
- Warming the limb
- Ensuring good lighting
- Lowering the limb below heart level
- Asking experienced colleagues for assistance early
Multiple Failed Attempts
Repeated attempts can increase distress and reduce future cooperation.
If venepuncture remains difficult despite appropriate positioning, distraction, and assistance, escalation should be considered early.
Senior staff or experienced paediatric practitioners may be able to identify less obvious veins, use alternative techniques, and reduce further distress to the child.
Repeated unsuccessful attempts should generally be avoided where possible.
Safety Considerations
Blood Volume
Children have lower circulating blood volumes than adults. Avoid taking unnecessary blood samples and ensure only essential tests are collected.
Needle Safety
Sudden movement increases the risk of sharps injury. Good positioning and support throughout the procedure are therefore essential.
Fainting
Older children and adolescents may experience vasovagal episodes during venepuncture. Patients with a history of fainting may benefit from lying down during the procedure.
Practical Tips
Building rapport before starting the procedure can significantly improve cooperation. Helpful practical tips include:
- Staying calm and confident
- Preparing all equipment beforehand
- Using distraction early rather than waiting for distress
- Praising the child throughout the procedure
- Avoiding repeated unsuccessful attempts
- Asking for help early when needed
- Using butterfly needles in difficult veins where appropriate
- Involving parents appropriately for reassurance and positioning support
Written by Arun Nahar (Phelbotomist at UHCW)
Reviewed by Dr A Sidhu (CT2)
