Sarah is working in a busy surgical ward and was caring for a patient with multiple intravenous lines, all delivering different medications, one of which is Morphine. IV lines Sarah is a new graduate on the ward and was unfamiliar with the IV machines, but needs to give her patient a 'one-off' bolus dose of Morphine to help resolve the patient's increased pain. Accidentally, Sarah administers a bolus dose of an anti-hypertensive medication, consequently, the patient's BP plummeted, and an emergency response had to be called.

What possible breaches of codes or conducts has Sarah demonstrated in this scenario and is this an example of negligence?