In a parliamentary response, Anne Milton warned that evidence showed advanced nurse roles were often evaluated before they were fully developed. As a result, judgments about their effectiveness were 'misleading'. She said this was a 'problem for primary care in particular'.
Ms Milton outlined that difficulties arise in the evaluation of advanced nursing roles because not all nurse specialist services are designed and delivered in the same way.
She added: 'For example, some nurse specialists may prescribe or order and interpret diagnostic tests which are usually done by a doctor, others may provide intensive counselling and support that enhances the care provided by other professionals.'