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Mental Health Nursing · Chapter 12

Delirium: Score the CAM, Then Sweep for the Cause

Delirium is acute brain failure, it is missed in most cases, and the miss almost always happens with the quiet patient. Run each Confusion Assessment Method feature on three people — you must actually perform the attention test, not guess it — and score them against the rule 1 and 2 and (3 or 4). Then sweep one patient for the cause, because a positive screen is the beginning of the work, not the end of it.

Run the CAM

The five-minute sweep — Mrs Okafor, 412

82 years old, day 2 after hip fracture repair. She lives alone, manages her own medications, and has no history of dementia. Her CAM is positive. Work the sweep: every item here is within nursing scope, and most ward delirium is found before a single laboratory result returns.
Now triage her medication list. For each drug given or due in the last 48 hours, decide whether it is a high-risk delirium precipitant you would raise with the provider.

The CAM rule, drawn

FEATURE 1 Acute onset + fluctuating FEATURE 2 Inattention (mandatory) FEATURE 3 Disorganised thinking FEATURE 4 Altered consciousness OR AND CAM not yet scored
Not yet scoredTest each feature, mark it present or absent, then score. Feature 2 is mandatory — a CAM cannot be positive without demonstrated inattention.
Establishing feature 1 needs collateral history. You cannot call something an acute change without knowing the baseline, which means telephoning the daughter or the care home and asking a specific question: “Two weeks ago, was he doing his own medications and his own shopping? Was he like this yesterday morning?”

Sweep findings

0 checks done · 0 findings. PINCH ME is the frontline nursing sweep: Pain, Infection, Nutrition, Constipation, Hydration, Medication, Environment. The letters above light as you find them.
The treatment for delirium is the cause. Medication is for one narrow indication only — severe distress or agitation posing imminent danger that has not responded to non-pharmacological measures. It does not treat delirium, does not shorten it, and is never indicated for the hypoactive form.
Benzodiazepines worsen delirium and are contraindicated except in three situations: alcohol or benzodiazepine withdrawal, neuroleptic malignant syndrome, and catatonia. In alcohol withdrawal delirium they are the treatment, guided by a CIWA-Ar protocol — and thiamine is given before any glucose load.
Physical restraint is not a treatment. It increases agitation, injury, aspiration, deconditioning, delirium duration and death, and it re-enacts trauma for anyone with an assault history. A raised side rail used to stop a person leaving the bed is a restraint, whatever the order set calls it.