ESIC Nursing Officer study materials
ESIC Nursing Officer study resources

Alcohol Withdrawal on Day 2: Hallucinations, Autonomic Storm and a Drug Order to Question

ESIC Nursing Officer · Put your knowledge to work in context.

All case studies

Alcohol Withdrawal on Day 2: Hallucinations, Autonomic Storm and a Drug Order to Question

A 46-year-old man is admitted to a general de-addiction unit 36 hours after his last drink. He has a history of daily country liquor use for 15 years and one previous withdrawal seizure. On assessment he is tremulous and sweaty, with a heart rate of 118/min, blood pressure 162/96 mmHg, temperature 37.8 °C, dilated pupils, and he is picking at insects on the bedclothes. He is oriented to person but not to time or place, and he cannot perform serial sevens. His CIWA-Ar score is 19. The junior medical officer writes: 25% dextrose 100 mL IV stat, oral thiamine 100 mg once daily, and haloperidol 5 mg IM if agitated. The unit has no continuous monitoring and one staff nurse per 12 patients at night.

1. What is your priority risk assessment, and how would you distinguish this from three important alternatives?

Read the worked answer

Priority risk: alcohol withdrawal delirium (delirium tremens) with a high risk of generalised seizure, aspiration and cardiac arrhythmia. Untreated DTs carry substantial mortality; the previous withdrawal seizure and CIWA-Ar of 19 put him in the highest-risk group.

The clinical triad here is autonomic hyperactivity (tachycardia, hypertension, sweating, fever, dilated pupils), altered sensorium (disoriented to time and place), and perceptual disturbance (tactile hallucinations), appearing 36 hours after the last drink - the classic DTs window of 48–96 hours.

Distinguishing the alternatives:

  1. Hypoglycaemia - common in this group because of poor intake and depleted glycogen. It can produce sweating, tremor, confusion and even seizures. Check capillary blood glucose immediately; it takes seconds and must be done before attributing anything to withdrawal.
  2. Head injury - a fall during intoxication is easily forgotten. Look for focal neurology, asymmetry, headache, vomiting, unequal pupils, and a history of collapse; if present, this needs urgent imaging rather than more sedation.
  3. Hepatic encephalopathy - asterixis, jaundice, ascites, deranged liver function and a raised ammonia with a more fluctuating drowsiness. The florid autonomic overactivity fits withdrawal better, but both can coexist.

Also screen for: infection (aspiration pneumonia, cellulitis), hypomagnesaemia and hypokalaemia, and concurrent sedative or opioid use. Any of these can mimic or worsen delirium, and magnesium replacement is often needed because low magnesium lowers the seizure threshold.

2. Evaluate the drug order as written. What would you query, and what is the reasoning behind each change?

Read the worked answer

The order as written has three problems.

  1. Dextrose without thiamine first. Giving a glucose load to a malnourished, alcohol-dependent patient before thiamine can precipitate or worsen Wernicke's encephalopathy. Thiamine should be given before or at the same time as the dextrose, not once daily as an afterthought. In a treatment setting, the parenteral dose is also far higher than 100 mg - treatment regimens use roughly 300 mg or more daily, often as a parenteral multivitamin preparation, for several days. Oral 100 mg daily is a maintenance/prophylaxis dose, not a treatment dose for someone with delirium.
  2. Haloperidol as the first-line sedative. Benzodiazepines are the first-line treatment for alcohol withdrawal because they correct the underlying GABA deficit; antipsychotics do not, and they lower the seizure threshold, prolong the QT interval and impair thermoregulation. A single small dose may be used adjunctively for severe agitation, but it must not replace a symptom-triggered benzodiazepine regimen.
  3. No symptom-triggered regimen or monitoring plan. The order gives no benzodiazepine at all despite a CIWA-Ar of 19. The nurse should request a protocolised benzodiazepine dose, a CIWA-Ar reassessment frequency (usually hourly to 2-hourly while severe), and a plan for seizure prophylaxis.

Framing the query: present the observations and the CIWA score, state the specific concerns, ask for a written revised order covering thiamine timing and dose, the benzodiazepine regimen, and electrolyte replacement, and document the conversation. If the doctor will not revise the order, escalate to the consultant psychiatrist - this is a foreseeable harm, not a matter of preference.

3. Given one nurse to 12 patients at night, what are your priorities for the next 8 hours, and why is physical restraint alone the wrong answer?

Read the worked answer

Priorities, in order:

  1. Safety first, but through visibility rather than immobilisation. Move him to a bed near the nurses' station, keep the area well lit, reduce noise, and use a single named observer if the unit can provide one. Disorientation worsens in the dark and in an unfamiliar room.
  2. Seizure precautions: padded side rails, nothing in the mouth, suction and oxygen immediately available, and prompt recording of any seizure's duration and features.
  3. Monitoring at a frequency matched to risk: CIWA-Ar and full observations hourly while severe, with a lower threshold for calling the doctor - rising pulse or blood pressure, fever, worsening confusion, chest pain, or a seizure.
  4. Fluid and electrolyte management: thiamine as reordered, magnesium and potassium replacement, accurate intake–output, and monitoring for dehydration from sweating and vomiting.
  5. Reorientation and de-escalation: short, calm, repeated orientation; simple statements; involve family if appropriate; avoid arguing with the hallucinations.

Why restraint alone is wrong:

  • It does not treat the cause. The agitation is driven by GABA withdrawal, which needs benzodiazepines.
  • Restrained patients with DTs struggle harder, and the combination of straining, fever and autonomic overactivity increases the risk of rhabdomyolysis, hyperthermia, aspiration and cardiac strain.
  • Restraint without one-to-one observation simply creates an unseen patient who can aspirate or sustain a injury.
  • If restraint is genuinely necessary for immediate safety, it must be the least restrictive option, time-limited, ordered and reviewed by a doctor, with continuous observation, documented justification, and removal as soon as possible - never used as a staff-saving device for a 1:12 ratio. The real answer to that ratio is escalation to the nurse-in-charge about unsafe staffing.