USMLE Forum Archives - USMLE Step 3 - pediatric poisong q2
pediatric poisong q2
zkadhem - 06-05-09 11:09
A 16-year-old male with a history of bipolar disorder presents via EMS with confusion, nausea, vomiting, and ataxia noted this morning by his mother. His vital signs include: T 36.9° C, HR 100, BP 110/70, and SaO2 96% on room air. On physical exam, you note the patient to have a resting tremor with myoclonus. Which drug do you suspect is causing his condition?
1. Clonazapam (Klonopin)
2. Lithium
3. Cocaine
4. Fluoxetine (Prozac)
zkadhem - 06-05-09 11:09
A 16-year-old male with a history of bipolar disorder presents via EMS with confusion, nausea, vomiting, and ataxia noted this morning by his mother. His vital signs include: T 36.9° C, HR 100, BP 110/70, and SaO2 96% on room air. On physical exam, you note the patient to have a resting tremor with myoclonus. Which drug do you suspect is causing his condition?
1. Clonazapam (Klonopin)
2. Lithium
3. Cocaine
4. Fluoxetine (Prozac)
The correct answer and explanation will be available after you answer.
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#10
Re: pediatric poisong q2 conym5 - 04-08-10 20:41 his patient has signs and symptoms of lithium toxicity. The distinction that must be made is whether this represents an "acute on chronic" ingestion or if this is purely an acute ingestion. Single acute ingestions present with gastrointestinal symptoms of vomiting, diarrhea.
#14
Re: pediatric poisong q2 babbu5508 - 08-31-10 05:20 My answer is: d.
Drugs that are associated with myoclonic movements include anesthetic agents such as etomidate and propofol; serotonergic drugs, which can cause a serotonergic syndrome when used in patients who are elderly, in patients who have hepatic disease, or in combination with other serotonergic drugs; opiates, the influence of which is presumably due to antalgesic effects of the metabolite morphine-3-glucuronide8; and a wide variety of other drugs, including anticonvulsants , mefloquine, gatifloxacin, tranexamic acid1, Γ-hydroxybutyrate, antineoplastic agents, contrast agents, and dopamine agonists and antagonists.
#18
Re: pediatric poisong q2 babbu5508 - 09-24-10 06:31 Moderate-to-severe lithium toxicity is characterized by altered mental status, muscle fasciculations, stupor, seizures, coma, hyperreflexia, and cardiovascular collapse.
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