You are currently the on-call FY2 Doctor on the geriatrics ward. You are bleeped by the nurse to cannulate a patient for routine intravenous medications later that afternoon. Your other FY2 colleague, the medical registrar and the advanced nurse practitioner have not been able to successfully cannulate the patient. You do not feel confident to cannulate the patient yourself, although you do have experience of cannulation. Do you:
Rank the following actions in order from the most appropriate (1) to the least appropriate (5) in this situation.