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.
2 min synopsisUK scopeSources checked 27 Aug 2026Clinical review pending
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Noisy breathing with acute respiratory compromise
Sudden bubbling, stridor, choking, pink froth, focal collapse, hypoxaemia or marked distress may represent aspiration, airway obstruction, pulmonary oedema or bleeding rather than expected terminal secretion.
Action: Assess airway and breathing immediately, position and suction only visible accessible obstruction, call appropriate emergency or palliative help and treat the cause within goals. Do not rely on an antimuscarinic, which reduces new secretion slowly and cannot remove an obstructing object, blood, oedema or fluid already present.
Synopsis
Distinguish expected upper-airway secretion from treatable pulmonary pathology, explain the sound without implying choking, use positioning and mouth care first, and prescribe an individual antimuscarinic trial only when likely benefit exceeds burden.
Terminal respiratory secretion usually reflects pooled saliva and airway fluid when swallowing and coughing diminish; it does not necessarily mean choking.
First-line assessment checks distress, consciousness, airway, oxygenation and whether onset or associated features suggest oedema, infection, aspiration, obstruction or blood.
Explain the mechanism and uncertainty to family before medicine: the sound often troubles listeners more than an unconscious patient.
Key red flags
Stridor, choking, inability to ventilate or acute cyanosis requires airway emergency assessment rather than a routine secretion prescription.
Central obstruction
Stridor, distress and reduced air entry suggest tumour, clot, foreign material or mucus plug needing urgent airway assessment.
Investigation priorities
01
First-line comfort and airway observationFirst stepFirst line
Typical secretionExplain, reposition and review fluid
A dying person develops gradual noisy upper-airway breathing without acute obstruction or visible distress.
Assess comfort and exclude sudden airway, bleeding, oedema or infection features and explain pooled secretion and swallowing change to family.
Reposition laterally or head up, provide mouth care and review whether fluid, feed, nebulisation or repeated suction is increasing burden.
Key medicines
Glycopyrronium for terminal respiratory secretionGive 200 micrograms subcutaneously as needed, commonly every 4 hours under the local protocol, and use 600 to 1200 micrograms over 24 hours by continuous subcutaneous infusion when repeated doses help.
Hyoscine butylbromide for secretionA common palliative regimen is 20 mg subcutaneously as needed up to every 4 hours and 60 to 120 mg over 24 hours by continuous infusion when the local protocol selects it.
National guidance is shown before implementation-dependent detail. Typical adult dose examples remain subject to patient factors, contraindications and the live BNF or specialist protocol. Source check completed 27 Aug 2026; clinical approval remains outstanding.
NICE NG31 care of dying adultsAssessment, non-drug measures, antimuscarinic options and individual review of noisy secretions.