Substance Use, Withdrawal, And Overdose Care - NCLEX Pn
- What assessment finding is most consistent with cannabis intoxication?
- Conjunctival injection with impaired coordination. Cannabinoid receptor activation causes ocular vasodilation and motor impairment as common acute effects.
- Identify the key safety risk after naloxone is given to an opioid-dependent patient.
- Acute withdrawal with agitation and recurrent respiratory depression. In dependent patients, naloxone precipitates abrupt withdrawal, and its short half-life allows opioid effects to potentially recur.
- Identify the best initial nursing action for a patient with suspected overdose of unknown substance.
- Assess ABCs and obtain vital signs; initiate emergency response as needed. Initial focus on airway, breathing, circulation, and vitals ensures rapid identification of life-threatening issues.
- Which lab/monitoring is most important to obtain early in suspected overdose with altered mental status?
- Point-of-care blood glucose. Hypoglycemia can mimic overdose symptoms and is a reversible cause of altered consciousness requiring prompt detection.
- What is the priority assessment for a patient with suspected benzodiazepine overdose?
- Airway and respiratory status. Benzodiazepines enhance GABA inhibition, potentially causing profound respiratory depression requiring priority monitoring.
- What vitamin should be given before glucose in a patient at risk for Wernicke encephalopathy?
- Thiamine (vitamin B1). Chronic alcohol use depletes thiamine, and glucose without prior supplementation can precipitate acute encephalopathy.
- What is the most serious complication of severe alcohol withdrawal (delirium tremens)?
- Seizures and autonomic instability (can be fatal). Delirium tremens involves extreme autonomic dysregulation and neuronal hyperexcitability, leading to potentially lethal outcomes.
- Which assessment finding suggests opioid overdose rather than opioid withdrawal?
- Respiratory depression with pinpoint pupils. Overdose involves mu receptor-mediated suppression, contrasting with the dilated pupils and agitation of withdrawal.
- Which finding most strongly suggests stimulant (cocaine/amphetamine) intoxication?
- Agitation with tachycardia, hypertension, hyperthermia, dilated pupils. Stimulants enhance catecholamine release, producing sympathetic activation and these characteristic adrenergic signs.
- What is the priority intervention for severe hyperthermia from stimulant intoxication?
- Rapid cooling and supportive care. Stimulant-induced hyperthermia risks organ failure, so prompt cooling and support are critical to restore homeostasis.
- Which assessment finding most strongly suggests alcohol withdrawal rather than intoxication?
- Tremors with tachycardia and hypertension. Withdrawal triggers sympathetic hyperactivity, producing these signs in contrast to the depressant effects of intoxication.
- Which medication can precipitate withdrawal if given to a patient currently using opioids?
- Naltrexone. This opioid antagonist displaces active opioids from receptors, triggering immediate and severe withdrawal symptoms.
- Which teaching point is essential after naloxone is used in the community for opioid overdose?
- Call emergency services; naloxone can wear off and relapse can occur. Naloxone's shorter duration compared to many opioids risks symptom recurrence, necessitating professional medical follow-up.
- Which withdrawal syndrome is most associated with life-threatening seizures: alcohol or opioids?
- Alcohol withdrawal. Abrupt alcohol cessation causes neuronal hyperexcitability, heightening seizure risk unlike the flu-like symptoms of opioid withdrawal.
- Which finding is most consistent with hallucinogen (LSD) intoxication?
- Perceptual disturbances with anxiety and dilated pupils. Hallucinogens like LSD alter serotonin transmission, inducing sensory distortions and sympathetic arousal.
- Which medication is commonly used for opioid use disorder maintenance to reduce cravings and withdrawal?
- Methadone. As a long-acting opioid agonist, it stabilizes patients by suppressing withdrawal and cravings without euphoria.
- Which medication class is often used first to treat severe agitation from stimulant intoxication?
- Benzodiazepines. These agents provide GABA-mediated sedation to counteract the excessive sympathetic stimulation from stimulants.
- Which medication class is first-line for acute alcohol withdrawal symptom control?
- Benzodiazepines. These agents enhance GABA activity to mitigate withdrawal-induced hyperexcitability and prevent complications like seizures.
- What symptom cluster is most consistent with opioid withdrawal?
- Rhinorrhea, lacrimation, yawning, piloerection, diarrhea, mydriasis. These autonomic rebound symptoms occur due to sudden cessation of opioid suppression in dependent individuals.
- What is the priority nursing action during an active generalized tonic-clonic seizure?
- Protect airway; turn to side; do not restrain or place objects in mouth. These measures prevent aspiration and injury while avoiding actions that could cause harm during uncontrolled movements.
- What is the nursing priority intervention for suspected opioid overdose with apnea?
- Support airway and breathing; provide bag-valve-mask ventilation. Opioids suppress respiratory drive, making immediate airway support and ventilation essential to prevent hypoxia and cardiac arrest.
- Which antidote may reverse benzodiazepine effects but is used cautiously due to seizure risk?
- Flumazenil. As a GABA receptor antagonist, it reverses sedation but may provoke seizures in dependent patients or mixed overdoses.
- What is the priority environmental intervention for a patient in alcohol withdrawal with confusion?
- Provide a quiet, well-lit room with frequent reorientation and safety precautions. This setup reduces sensory overload and disorientation while promoting safety in confused, agitated patients.
- What classic triad is most associated with opioid overdose?
- CNS depression, respiratory depression, pinpoint pupils. Opioid receptor activation causes profound sedation, slowed breathing, and miosis as hallmark physiological responses.
- What medication is the antidote for opioid overdose?
- Naloxone. As a competitive opioid antagonist, it rapidly displaces opioids from mu receptors to reverse life-threatening effects.