5.4 Mental Health Concepts
Key Takeaways
- Any statement suggesting suicidal ideation must be assessed directly first ('Are you thinking about killing yourself?') and the patient is never left alone.
- Delirium has a sudden, fluctuating onset and is usually reversible; dementia is gradual and progressive - the onset clue decides the answer.
- Alcohol and benzodiazepine withdrawal can be life-threatening (seizures, delirium tremens); opioid and stimulant withdrawal is miserable but rarely fatal.
- Alcohol withdrawal follows a timeline: tremor/anxiety at 6-24 h, seizures at 12-48 h, and delirium tremens at 48-72 h.
- Substance use disorder is a medical condition - the tested nursing stance is non-judgmental assessment and monitoring, not moralizing.
Suicide Risk Comes First
When a stem hints at self-harm ("I just want to fall asleep and never wake up"), the FIRST nursing action is to ask directly: "Are you thinking about killing yourself?" Asking does not plant the idea - it opens assessment. After confirming, the LPN stays with the patient, removes hazards, and notifies the RN and provider. The classic wrong answers are leaving to get the RN, documenting and moving on, or reassuring the patient. A sudden calm or mood lift after deep depression is an ominous warning sign, not improvement - the patient may have decided on a plan.
Anxiety and Depression - What to Report
Anxiety presents physically (tachycardia, diaphoresis, dyspnea, trembling, GI upset) and psychologically (dread, restlessness, poor concentration). At escalating levels the LPN reduces stimuli, uses short clear sentences, and reports severe or panic-level anxiety to the RN.
Depression is screened with the SIG-E-CAPS pattern: Sleep change, loss of Interest (anhedonia), Guilt, low Energy, poor Concentration, Appetite change, Psychomotor change, and Suicidal thoughts. Persistent anhedonia plus any suicidal ideation is an immediate report.
Delirium vs. Dementia (Onset Is the Tiebreaker)
| Feature | Delirium | Dementia |
|---|---|---|
| Onset | Sudden (hours to days) | Gradual (months to years) |
| Course | Fluctuates over the day | Slowly progressive |
| Consciousness | Clouded, altered | Clear until late stages |
| Attention | Severely impaired | Relatively preserved early |
| Reversible? | Usually, once cause is treated | Generally not |
| Cause | Infection, drugs, metabolic, hypoxia | Brain disease (Alzheimer's, vascular) |
When a previously alert older adult becomes confused and inattentive within a single shift, suspect delirium and look for the cause. Use the DELIRIUM mnemonic: Drugs, Electrolytes, Lack of oxygen, Infection (often a UTI in elders), Retention (urine/stool), Intracranial event, Undernutrition, Metabolic disturbance.
Substance Withdrawal - Lethality and Timeline
The most testable fact: alcohol and benzodiazepine withdrawal can kill (seizures, delirium tremens), while opioid and stimulant withdrawal is severe but rarely fatal.
| Substance | Withdrawal signs | Danger level |
|---|---|---|
| Alcohol | Tremor, anxiety, sweating, tachycardia, hypertension, seizures, DTs | Potentially LIFE-THREATENING |
| Benzodiazepines | Anxiety, tremor, insomnia, seizures | Potentially LIFE-THREATENING |
| Opioids | Muscle aches, yawning, diarrhea, mydriasis, cravings | Miserable, rarely fatal |
| Stimulants | Crash: fatigue, depression, increased appetite | Not typically dangerous |
Alcohol withdrawal timeline (verify against the patient's last drink): tremor and anxiety at 6-24 hours, withdrawal seizures at 12-48 hours, and delirium tremens at 48-72 hours. DTs bring agitation, global confusion, hallucinations, fever, and severe autonomic instability (tachycardia, hypertension). Severity is quantified with the CIWA-Ar (Clinical Institute Withdrawal Assessment for Alcohol, revised), a 10-item scale; rising scores prompt benzodiazepine treatment per protocol. The LPN monitors vital signs and reports escalating tremor, hallucinations, or vital-sign changes to the RN immediately.
The tested nursing attitude toward any substance use disorder is non-judgmental - it is a medical condition, not a moral failing.
Safety Environment for the At-Risk Patient
When a patient is identified as a suicide risk, environmental safety is a tested intervention set. The LPN removes potential means - sharps, glass, belts, cords, medication left at the bedside, and restricts access to windows. For high or imminent risk, one-to-one constant observation is implemented and the patient is not left alone, including during toileting if ordered. Frequent documented checks, a calm low-stimulus environment, and clear communication with the team round out the plan. A 'no-suicide contract' is not a substitute for observation and is not relied upon for an actively suicidal patient.
The LPN reports the patient's statements, behavior, and any change in mood - especially a sudden lift - to the RN and provider.
Recognizing Psychosis and Mania Briefly
While anxiety and depression dominate, the exam includes basic recognition of other states. Psychotic symptoms include hallucinations (sensory experiences without a stimulus - auditory are most common), delusions (fixed false beliefs), and disorganized thinking; the nurse does not argue with or reinforce a delusion but acknowledges the patient's feeling and gently presents reality ('I don't hear the voices, but I can see you feel frightened'). For command hallucinations telling the patient to harm self or others, assess and report immediately as a safety issue.
A patient in a manic episode may show pressured speech, grandiosity, decreased need for sleep, and poor judgment; the nursing priorities are reducing stimulation, providing structure, ensuring nutrition and rest, and protecting the patient from impulsive harm.
Why Withdrawal Lethality Matters Clinically
The alcohol and benzodiazepine versus opioid distinction is not trivia - it drives priority and reporting. Because alcohol and benzodiazepine withdrawal can produce seizures and delirium tremens with a meaningful mortality risk if untreated, these patients require close vital-sign monitoring, the CIWA-Ar protocol, and prompt escalation; abrupt cessation is dangerous.
Opioid withdrawal, by contrast, produces severe discomfort - body aches, gastrointestinal distress, dilated pupils, yawning, and intense craving - but is rarely fatal in an otherwise healthy adult, so the priority shifts to comfort, hydration, and relapse prevention rather than seizure precautions. Matching the monitoring intensity to the substance is exactly what the NCLEX-PN rewards.
A patient on a medical unit tells the LPN, "I just don't want to be here anymore. I wish I could go to sleep and never wake up." What should the LPN do FIRST?
An older adult who was alert and oriented at 8 a.m. is, by noon, confused, agitated, and unable to focus on the LPN's questions. This presentation is most consistent with:
A patient with alcohol use disorder had their last drink about 18 hours ago. Which findings should the LPN expect and report?