Psychiatry EOR Flashcards
What are the symptoms of serotonin syndrome?
Mental status changes Autonomic instability (Tachy, diarrhea, diaphoresis, mydriasis) Neuromuscular abnormalities (Clonus, hyperreflexia, tremor, seizures)
Is serotonin syndrome fast or slow onset?
Fast onset
What criteria is used to diagnosis serotonin syndrome?
Hunter criteria
What is the treatment for serotonin syndrome?
Benzodiazepines
Hydration/Cooling
Cyproheptadine
What syndrome presents very similar to serotonin syndrome, but is caused by exposure to halogenated anesthetics(halothane) or depolarizing muscle relaxants (Succinylcholine, suxamethonium)?
Malignant hyperthermia
What is the pharmacologic treatment for malignant hyperthermia?
Dantrolene
What syndrome presents similarly to serotonin syndrome, but develops slowly, and is associated with slowed neuromuscular activity rather than hyperactivity.
Neuroleptic malignant syndrome.
What medications can cause neuroleptic malignant syndrome?
Neuroleptic agents (antipsychotics - such as haloperidol, fluphenazine, clozapine) Antiemetics (metoclopramide, promethazine) Withdraw from dopamine agonist therapy
Where are neuromuscular symptoms most profound in a patient with serotonin syndrome?
In the lower extremities.
Is autism spectrum disorder more common in males or females?
Males
What 2 criteria must be met to diagnose autism spectrum disorder? (From the DSM-5)
- Persistent deficits in social communication and interaction
- Restricted, repetitive patterns of behavior, interests, or activities.
Patients who are diagnosed with conduct disorder have a high likelihood of developing which personality disorder?
Antisocial personality disorder.
What is the mechanism of actions for benzodiazepines?
Potentiation of endogenous gamma-aminobutyric acid type A. (GABA)
What are the signs and symptoms of benzo withdrawal?
Anxiety, insomnia, tremor, diaphoresis, nausea, vomiting, palpitations, headache, and poor concentration.
Is benzo withdrawal fatal?
Yes
What is the mechanism of action of ampheteamines?
Increased release of catecholamines through inhibition of monoamine oxidase.
Inhibition of dopamine receptors is the mechanism of action of what type of medications?
Antipsychotics
What can be used for sleep in a patient who has insomnia and is being tapered off benzodiazepines?
Melatonin.
What illicit drug is known commonly as angel dust?
Phencyclidine (PCP)
What are some common physical exam findings in a patient who ingested PCP?
HTN, tachycardia, nystagmus (horizontal, vertical, or rotatory), and behavior changes.
Argyll Roberston pupil most commonly occurs with what condition?
Neurosyphilis
What is an argyll robertson pupil?
A pupil that accommodates when the patient is asked to focus on near and distant objects alternatively, but does not react to light exposure.
Which modern anesthetic is derived from phencyclidine?
Ketamine.
What are the core characteristics of schizotypal personality disorder?
Cognitive and perceptual disturbances (magical thinking, paranoia, suspiciousness, and ideas of reference), interpersonal difficulties, oddities of behavior or appearance, and disorganized thought or speech.