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Delirium Prevention

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In one line

·Find patients who might become confused in the hospital, then use simple, non-drug steps to keep their brain organized before delirium starts.

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Normal physiology

·The brain stays organized by knowing where you are, what time it is, and what is happening around you (called 'orientation'). It needs good sleep every night to clear out waste and reset. It needs to see and hear clearly to take in the world. It needs to move, because movement keeps blood flowing to the brain and keeps the body's rhythm steady. When all of these things work together, the brain can filter what is important from what is not, stay calm, and think clearly.

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What goes wrong

·Delirium happens when the brain loses its tools to stay organized. Three big forces break it: (1) the hospital itself (new place, bright lights and noise all night, no familiar faces, tubes and wires attached to the body); (2) the patient's risk (older age, already sick, brain already working hard from dementia or past stroke, weak body); and (3) things doctors and nurses do that hurt the brain without meaning to (give medicines that fog thinking, keep the patient lying in bed all day, take away glasses and hearing aids, wake them up every hour at night). When all three forces hit at once, the brain cannot filter what is real anymore, and it gets confused.

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Hallmark signs

·Older age (over 65 years)
·Hearing or vision problems
·Dementia or memory problems
·Taking three or more medicines (polypharmacy)
·Recent surgery or anesthesia
·Severe illness or infection
·Using a bladder catheter or being unable to move (immobility)
·Not eating or drinking enough (malnutrition or dehydration)

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Red flags · escalate now

·New or sudden confusion that was not there before (the main sign delirium has started)
·Being very sleepy and hard to wake up (may mean the brain is dangerously slowed or shutting down)
·Seeing or hearing things that are not real, or believing things that make no sense (hallucinations or delusions — signs the brain is misfiring badly)

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Workup

·Confusion Assessment Method (CAM) score at admission and daily
·Complete metabolic panel (CMP): sodium, glucose, creatinine, calcium
·Complete blood count (CBC) with differential
·Urinalysis and urine culture (if catheter present or patient cannot void)
·Chest X-ray (if fever, cough, low oxygen, or crackles on exam)
·Oxygen saturation (pulse oximetry) at rest and with activity
·Medication reconciliation (review all home and hospital medicines for anticholinergics, benzodiazepines, opioids)
·Thyroid-stimulating hormone (TSH) and liver function tests (if cause unclear after basic work-up)

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Treatment

·Assess delirium risk at admission using a validated tool (e.g., age above 70, known dementia, severe illness, vision or hearing loss, abnormal sodium or glucose)
·Reorient constantly: put a clock and calendar in the room, open the window, tell them the date and where they are, explain who you are and why they are here — repeat every two hours
·Stop or reduce anticholinergic drugs (diphenhydramine, oxybutynin), benzodiazepines (lorazepam, diazepam), opioids (morphine, oxycodone), and other sedating medicines
·Restore the sleep-wake cycle: lights on and blinds open during the day, lights off and quiet at night, no unnecessary alarms or care rounds between 10 p.m. and 6 a.m.
·Return glasses and hearing aids immediately; assign the same nurse and doctor each shift; involve family in care rounds and daily decisions
·Mobilize early: sit in a chair by day one if safe, walk in the hall with help twice a day; give water and food by mouth instead of IV or tube; treat constipation and urinary retention daily
·Remove unnecessary tubes and lines (urinary catheter, IV if patient can drink, restraints) as soon as possible

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NCLEX trap

·Sedatives and sleeping pills often CAUSE delirium in the first place. Giving more drugs usually makes it worse. Delirium prevention means stopping medicines that cloud the brain, not adding more. Use the ABCDEF bundle instead: wake him up and let him breathe without a tube (A and B), help him think about where he is (C), move his body (D and E), and bring his family (F). Add good sleep in a dark, quiet room, water, glasses, hearing aids, and help him poop.
·Delirium is NOT the same as dementia. Dementia develops slowly over months or years and stays steady. Delirium is NEW confusion that happens over hours or days and can be reversed. It comes from being in a hospital (no sleep, bright lights, strange sounds) plus being high-risk (old, sick, or frail) plus harm from hospital care (too many drugs, tubes, no movement). Delirium prevention means finding and fixing those harms RIGHT NOW.
·Restraints make delirium WORSE, not better. They scare the brain, stop movement (which the brain needs to stay clear), and make the patient fight harder. Delirium prevention means letting him move safely WITH HELP from family or staff, using a bed alarm, or having someone sit with him — not tying him down. Restraints should be a last resort only when the patient is an immediate danger to himself or others.
·Yes, check oxygen (hypoxia, which means not enough oxygen in the blood), blood sugar (hypoglycemia, which means blood sugar too low), and infection (like a urinary tract infection or pneumonia) FIRST — those are medical emergencies that can cause delirium. But delirium prevention also means looking at what the HOSPITAL did: poor sleep, new medicines (especially benzodiazepines like lorazepam, anticholinergics like diphenhydramine, opioids like oxycodone), tubes (like a urinary catheter), and no movement. Being in a hospital plus being high-risk plus these harms together CAUSE delirium. Fix the upstream harms, not just the labs.
·Delirium prevention means tracing back what changed AFTER admission. On day one: new medicines started, sleep broken by noise and lights, family sent home, glasses taken off, movement stopped by tubes or bed rest. That is when delirium began. Delirium is HOSPITAL-ACQUIRED in most cases. Fix those changes — better sleep, remove unnecessary tubes, bring back glasses and family, let him move — and the confusion often improves.
·That reflex makes delirium WORSE. Most sedatives and sleeping pills (like benzodiazepines such as lorazepam and Z-drugs like zolpidem) cloud the brain and are a TOP CAUSE of delirium. Delirium prevention means using the ABCDEF bundle and non-drug fixes FIRST: reorient him (tell him where he is and what day it is), let him move, give him water, turn off lights at night for natural sleep, give him his glasses and hearing aid, bring his family, and treat constipation. Match the care to the PERSON and the hospital risks, not to one symptom.

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