Plan a comfort bundle for an infant cannulation — OSCE

Candidate brief

You have this station to assess a 6-month-old infant before a venepuncture and cannulation, choose and time the topical anaesthetic, plan the multi-modal comfort bundle, and counsel the anxious parent. Treat this as a calm, planned procedure with time to prepare, and explain each layer of the bundle to the mother in plain language. State explicitly how you would dose and time oral sucrose if breastfeeding is not used, and how you would position the child. [1] [9]

Key teaching and management objectives

Begin with the structured assessment: the child is a 6-month-old with no contraindication to EMLA, the procedure is a moderate, brief needle needing the arm still, and the 70-minute window allows a full EMLA hour. Apply EMLA (lidocaine 2.5% and prilocaine 2.5%) under an occlusive dressing for at least 60 minutes at one or two likely sites; explain to the parent that the cream numbs the skin so the needle hurts less. [2] [9]

Layer the sweet/oral and behavioural measures. Offer the mother the choice of breastfeeding during the procedure (the best single infant measure) or oral sucrose 24%, 0.1 to 2 mL about two minutes before, and explain that the dose is a small absolute volume, never millilitres per kilogram. Plan an upright comfort position on the mother's lap, chest-to-chest, which gives you access while keeping the child in control, and run an age-appropriate distraction such as a tablet video. [3] [1]

Counsel the parent with honesty and reassurance: tell her what the procedure is for, what the cream and the other measures will do, and what her role is in holding and soothing; avoid false promises such as "it won't hurt at all". Explain why a forceful hold-down is not the plan, and that if the infant cannot be kept comfortable and still the team will escalate rather than restrain. [9]

Close with escalation and aftercare. State that for a procedure the bundle cannot make comfortable — a lumbar puncture, an abscess drainage — the same layers remain the foundation but are escalated to formal procedural sedation by a trained team with monitoring. After the procedure, give honest feedback and praise, and document what worked so the next clinician repeats the same bundle. [1] [9]

Marking domains

• Assessment and agent choice (4 marks). Correct structured assessment of child, procedure, allergies and time; correct EMLA concentration and 60-minute occlusion; recognises no methaemoglobinaemia contraindication at six months.
• Multi-modal layering (3 marks). Names and combines topical anaesthesia, sucrose or breastfeeding, distraction and comfort positioning; correct sucrose concentration, absolute volume and two-minute timing.
• Communication and parent counselling (2 marks). Honest, plain-language explanation; appropriate role for the parent; avoids false promises and restraint.
• Escalation and safety (2 marks). States when to escalate to procedural sedation and that restraint is not a substitute for analgesia; describes aftercare and documentation. [9] [1]