Skip to textbook content
Doctor’s PassportTextbook
TopicsAll topics

Loading topic navigation…

Textbook navigation
TopicsAll topics

Loading topic navigation…

Educational draft · awaiting clinical reviewUse Rapid for revision, not patient-care decisions. Check current national and local guidance and the BNF or BNFC before acting.

Clinically assisted nutrition and hydration

Medicine of older adults · UK scope · Sources checked 27 Aug 2026 · Clinical review pending

RapidFull
!
Protect the airway and circulation

Acute choking, aspiration, severe dehydration, electrolyte disturbance, hypoglycaemia or tube displacement requires immediate assessment rather than a delayed ethical meeting.

Action: Stabilise urgent threats, stop unsafe delivery, check the agreed treatment plan and obtain senior, dietetic, speech-and-language or specialist support as indicated.

Synopsis

Decide separately about assisted nutrition and hydration using clinical goals, swallowing and refeeding assessment, capacity, lawful authority and monitored benefit-versus-burden trials.

  • Food and drink by mouth, including careful assistance, is distinct from nutrition or fluid delivered through a tube, vein or subcutaneous route.
  • Clinically assisted nutrition and hydration are medical treatments, so consent, capacity, clinical appropriateness and review apply as with other interventions.
  • Assess nutrition and hydration separately because their goals, routes, benefits and harms may differ.
  • Start with safe oral support, preferred tastes, positioning, adaptive equipment, mouth care and speech-and-language assessment when these can meet goals.
  • Tube feeding does not eliminate aspiration risk and may add dislodgement, infection, diarrhoea, restraint and treatment burden.
  • Do not routinely use enteral feeding in severe dementia unless a potentially reversible comorbidity provides a clear time-limited indication.
  • In the last days, evidence is uncertain that assisted hydration prolongs life or that withholding it hastens death; a monitored trial may relieve selected symptoms.
  • Any trial needs an explicit goal, duration, measures of benefit and stopping rules for overload, distress or failure.

Key red flags

Coughing, wet voice, recurrent chest infection or oxygen desaturation during intake suggests clinically significant swallowing impairment.

A nasogastric tube is used before position confirmation or after displacement, creating a risk of pulmonary feeding.

Feeding is started at full requirement after prolonged little or no intake without phosphate, potassium, magnesium and thiamine planning.

New oedema, crackles, increased secretions or breathlessness during hydration suggests fluid overload, particularly in heart or kidney failure.

Restraint or repeated traumatic tube replacement is occurring without a documented capacity and benefit-versus-burden decision.

Relatives are told they alone must choose, or are excluded despite providing important evidence about a patient who lacks capacity.

Oral care and comfortable hand feeding are withdrawn merely because tube feeding is not being provided.

Investigation priorities

01
Speech and language swallowing assessmentFirst step

Define safe oral options and aspiration risk.

Management branches

First lineOral support and assessment

Eating or drinking is reduced but the person can still participate in oral intake.

  1. Treat mouth pain, constipation, nausea, delirium and medicine effects, and optimise alertness, seating, hearing and meal assistance.
  2. Offer preferred energy-dense food, small portions, adapted utensils and texture or fluid changes based on skilled assessment.
  3. Discuss aspiration, enjoyment, independence and nutritional goals with the person, avoiding risk language that removes all choice.
  4. Monitor intake, comfort, respiratory events, weight trajectory and carer workload, escalating to dietetics and speech-and-language therapy.
Open full textbook →Answer 2 questions
Sources and review status6 sources · checked 27 Aug 2026 · clinical review pending+
Sources

Sources and review status

National guidance is shown before implementation-dependent detail. Apply principles in context and verify current guidance when a decision affects care. Source check completed 27 Aug 2026; clinical approval remains outstanding.

  • NICE CG32 adult nutrition supportOral, enteral and parenteral indications, refeeding prevention and multidisciplinary monitoring.
  • NICE NG31 hydration in last daysMouth care, uncertainty, therapeutic trials and at least 12-hourly benefit-harm review.
  • NICE NG97 dementia recommendationsSupported oral intake and limits on routine enteral feeding in severe dementia.
  • GMC end of life treatment guidanceCANH as medical treatment, capacity, overall benefit and continued high-quality care.
  • BMA CANH decision-making processEngland and Wales best-interests process for adults who lack capacity.
  • RCSLT eating and drinking risk guidanceShared multidisciplinary decisions when oral intake continues despite acknowledged risks.

Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem ·

Content changes
Authoring stateRapid draftClinical stateAwaiting reviewJurisdictionUnited Kingdom