Aspiration precautions
Formal Definition
A bundle of nursing and dietary interventions to reduce the risk of oral or gastric contents entering the airway in patients at elevated risk for aspiration (impaired swallowing, decreased level of consciousness, gastroesophageal reflux disease, endotracheal intubation, post-stroke, neuro-degenerative disease like Parkinson's or ALS, post-extubation); components typically include head-of-bed elevation ≥30° (especially during and after feeding), speech-language pathology swallow evaluation before oral intake in high-risk patients, dietary texture modifications (puree, mechanical soft, thickened liquids), supervised meals with small bites, oral care before/after meals, and avoidance of feeding in drowsy patients.
How It's Used on the Ward
"Aspiration precautions" or "aspiration risk" — when a patient is identified as having an unsafe swallow or other risk factors for food/liquid going into the lungs (causing aspiration pneumonia), they're labeled aspiration precautions; the bedside sign is posted; meals become supervised and possibly texture-modified; if very high risk, they may be NPO pending formal swallow evaluation.
Example
""72-year-old man 2 days post-stroke with new right-sided weakness and dysarthria. Speech language pathology consult for bedside swallow eval — patient coughed with thin liquids on trial. Recommendation: nectar-thickened liquids, mechanical soft diet, upright position for all PO intake, small supervised meals. Aspiration precautions ordered. Head of bed elevated 30° at all times. Daughter educated before bringing food from home.""
Clinical Context
Risk factors for aspiration: altered mental status (intoxication, sedation, hepatic encephalopathy, post-ictal, dementia), neurological disease (stroke, TBI, MS, ALS, Parkinson's, myasthenia gravis), anatomic (esophageal stricture, Zenker's diverticulum, head/neck cancer), tubes (nasogastric feeding tubes — risk of dislodgement and aspiration, endotracheal tubes post-extubation), GERD/hiatal hernia, supine positioning, oral care deficit (bacterial colonization of oropharynx then microaspiration of secretions). Bedside swallow eval (by SLP): clinical exam with various liquid and food consistencies to identify silent aspiration (silent = patient doesn't reflexively cough when material enters airway). Videofluoroscopic swallow study (modified barium swallow / MBS) is gold standard for visualizing the swallow mechanism. Aspiration pneumonia risk: not all aspiration leads to pneumonia; depends on volume, bacterial load, host immunity. Prevention hierarchy: NPO if unsafe swallow (then NG/NJ tube or PEG if prolonged), SLP eval first, then advance diet with appropriate textures, position management, oral care.