The Role of a Nurse Expert Witness in Consent and Patient Communication Claims

Updated: Sep 22
Consent and communication are fundamental to safe, patient-centred healthcare. Patients should be involved in decisions about their care, given appropriate information, treated with dignity, and supported to make informed choices wherever possible.
Nurses play an important role throughout this process.
They frequently spend more time with patients than other members of the multidisciplinary team and may be responsible for explaining nursing procedures, answering questions, identifying concerns, supporting decision-making, recognising potential issues with capacity, and communicating important information to other healthcare professionals.
When a clinical negligence claim involves allegations surrounding consent or communication, a nurse expert witness may therefore be instructed to assess the nursing care provided.
However, these cases can involve important professional boundaries. Not every question about consent falls within nursing expertise, and the responsibilities of the nurse will depend on the treatment, procedure, clinical setting and circumstances of the individual case.
The role of the nurse expert witness is to identify those boundaries and provide an independent opinion on the aspects of care that properly fall within nursing practice.
Consent is more than obtaining a signature
Consent is sometimes associated primarily with a signed consent form. In practice, meaningful consent involves much more.
Patients should receive information that enables them to understand what is being proposed and, where appropriate, make decisions about whether they wish to proceed. Consent should be voluntary and provided by someone with the capacity to make the relevant decision.
The exact responsibilities of individual healthcare professionals will vary. For some treatments and procedures, the clinician proposing or performing the intervention will carry primary responsibility for discussing its nature, benefits, material risks and reasonable alternatives. A nurse should not be expected to provide specialist information that falls outside their competence or take responsibility for a consent process that properly belongs to another clinician.
However, nurses still have important responsibilities relating to patient communication, advocacy and safe care. A nurse expert witness must therefore establish what could reasonably have been expected of the nurse involved rather than treating consent as the responsibility of a single profession in every circumstance.
What can a nurse expert witness assess?
The precise scope of an expert's opinion will depend on their own qualifications and clinical experience, as well as the allegations being made.
A nurse expert witness may be asked to consider issues such as whether:
A nursing procedure was adequately explained and the patient's agreement appropriately obtained.
Questions, concerns or apparent misunderstandings expressed by the patient were recognised and escalated where necessary.
Communication, consent-related discussions and relevant decisions were appropriately documented.
Other issues may include whether the patient's wishes were respected, whether communication needs were identified and whether nursing staff acted appropriately where there were concerns about the patient's ability to understand or participate in decisions.
The expert's task is not to decide whether consent was legally valid. Questions of law are ultimately for the court. Instead, the expert provides evidence about the nursing standards and professional responsibilities relevant to the circumstances.
The importance of clear patient communication
Good communication is not an optional addition to nursing care. It is integral to it. Nurses need to communicate with patients about many aspects of their treatment and daily care, from medication administration and wound care to mobility, discharge planning and monitoring.
The complexity of that communication will vary considerably. A routine explanation before taking observations is very different from a discussion surrounding an invasive procedure or major treatment decision. What constitutes reasonable communication therefore depends heavily on the circumstances.
A nurse expert witness may consider what information the nurse was responsible for providing, whether it was communicated in a way the patient could reasonably understand, and whether any concerns raised by the patient received an appropriate response.
The expert will also consider the patient's individual communication needs. Hearing impairment, language barriers, learning disabilities, cognitive impairment, distress and acute illness can all affect a person's ability to receive and process information. Reasonable nursing care may therefore require communication to be adapted accordingly.

When patients raise questions or concerns
One particularly important aspect of nursing practice is recognising when a patient needs further information from another clinician. A nurse may not be the appropriate professional to answer every question about a proposed treatment. However, that does not mean the question can simply be ignored.
If a patient expresses uncertainty about a procedure, indicates that they do not understand what is going to happen, or raises concerns about risks that fall outside the nurse's expertise, appropriate nursing practice may involve pausing where clinically appropriate and escalating the matter to the relevant clinician.
The same principle applies where a patient's wishes appear to have changed. Consent is an ongoing process, and a patient who has previously agreed to treatment may subsequently express reluctance or withdraw their agreement. A nurse expert witness reviewing such a case will consider what was said, how nursing staff responded, what was documented and whether further clarification or escalation should reasonably have occurred.
Capacity can make these cases more complex
Consent and communication claims can become particularly complicated where there are concerns about mental capacity. Patients may experience confusion because of dementia, delirium, medication, acute illness, neurological conditions or other factors. Importantly, capacity is decision-specific and can fluctuate.
Nursing staff have an important role in recognising potential concerns and ensuring they are appropriately addressed. A nurse expert witness may consider whether there were indicators that should have prompted concern about the patient's ability to understand or participate in a particular decision and whether nursing staff acted reasonably in response.
This does not necessarily mean that the nurse was responsible for making every formal capacity assessment. The expert must distinguish between what reasonably fell within the nurse's role and what required assessment or decision-making by another healthcare professional.
Where the issues extend into another specialist area, additional expert evidence may be necessary.
Communication within the multidisciplinary team
Patient communication does not occur in isolation. Nurses also have a responsibility to communicate relevant information to colleagues.
For example, a patient may tell a nurse that they no longer wish to undergo a planned procedure. A relative may raise concerns about the patient's understanding. A nurse may notice that a patient appears confused despite previously being documented as having capacity.
Whether and how that information was shared can become highly significant in a subsequent claim. A nurse expert witness may review nursing notes, medical records, handover documentation and other contemporaneous evidence to determine whether concerns were appropriately communicated. A failure to share important information can affect subsequent clinical decisions even where the nurse was not personally responsible for making those decisions.
What do the records show?
As with many clinical negligence claims, documentation can become central to disputes about consent and communication. If a patient recalls raising concerns but the records contain no reference to the conversation, the factual position may be disputed.
The nurse expert witness should not simply decide which account is correct. Determining disputed facts is ultimately a matter for the court. Instead, the expert may explain what would ordinarily be expected from a nursing perspective. If a significant concern, refusal or change in a patient's wishes should reasonably have been documented, the expert can comment on the adequacy of the record keeping.
They may also be asked to provide alternative opinions based on different factual scenarios. For example, the expert might explain what their opinion would be if the court accepts that a particular conversation occurred and how that opinion would differ if it did not. This allows the expert to assist the court without stepping outside their proper role.
Respecting patient autonomy
Underlying many consent and communication issues is the principle of patient autonomy. Patients are entitled to be involved in decisions about their care and, where they have capacity, may refuse treatment even when healthcare professionals believe that treatment would be beneficial.
For nurses, respecting autonomy means listening to patients, taking concerns seriously and ensuring their expressed wishes are appropriately communicated. It can also involve balancing autonomy against other responsibilities, including safeguarding, capacity concerns and immediate clinical risks.
These situations are rarely as straightforward as they may appear when reviewed retrospectively. A nurse expert witness considers the circumstances as they existed at the time and assesses whether the nursing response was reasonable rather than judging the outcome with hindsight.
Recognising the limits of nursing expert evidence
Professional boundaries are particularly important in consent claims. A nurse expert witness should only provide opinions within their own knowledge, training and experience.
They may be well placed to assess nursing communication, documentation, advocacy, escalation and aspects of consent relating directly to nursing procedures. They may not, however, be appropriately qualified to determine what a surgeon should have explained about the risks of an operation or what a doctor should have advised about alternative medical treatments.
Those questions may require evidence from an expert practising within the relevant medical specialty. Knowing when another expert is required strengthens rather than weakens nursing expert evidence. It demonstrates that the expert understands their professional boundaries and is committed to assisting the court objectively.
Why this matters
Consent and patient communication claims can involve much more than whether a form was signed. They may require detailed consideration of what the patient was told, what they understood, what concerns they expressed, whether their wishes changed, how healthcare professionals responded and whether important information was communicated between members of the clinical team.
A nurse expert witness can provide valuable insight into the nursing aspects of these cases. By reviewing the contemporaneous evidence, considering the patient's individual circumstances and applying appropriate professional standards, the expert can assess whether nursing staff communicated reasonably, recognised concerns, respected patient autonomy and escalated matters when necessary.
Just as importantly, a credible nurse expert witness understands the limits of their role. They do not attempt to resolve disputed facts, provide legal conclusions or offer medical opinions outside their professional competence. Instead, they provide the court with a clear, balanced and evidence-based assessment of what could reasonably have been expected from the nursing staff involved.
In consent and communication claims, that distinction is essential. Effective expert evidence is not about extending nursing responsibility beyond its proper boundaries. It is about identifying precisely where that responsibility begins, what it required in the circumstances, and whether the standard of nursing care provided was reasonable.
