Prior Flashcards
When do Koplik spots occur in relation to the rash of measles?
prior to onset of rash
Drugs with what mechanism of action should be avoided in patients with hypertrophic cardiomyopathy?
vasodilators, reduces preload and can worsen left ventricular outflow obstruction. Such drugs include nitroglycerin and dihydropyridine calcium channel blockers.
What infectious organism is associated with intussusception?
rotavirus
airborne precaustions - TB, SARS, measles, varicella
What defines a positive diagnostic peritoneal aspiration?
- > 10 mL frank blood aspirated
In patients with a left bundle branch block, what criteria can aid in the diagnosis of ST elevation myocardial infarction?
- concordant STE > 1mm, discordant > 5mm, STD > 1mm in V1-3
What is an objective method to distinguish low-flow from high-flow priapism?
- penile blood gasses
What are three paraneoplastic syndromes associated with small cell lung cancer?
- cushing syndrome, SIADH, lambert eaton
Spinal cord injuries above what level can result in neurogenic shock?
- at or above T5
Which other medications may be used to treat torsades de pointes that does not respond to intravenous magnesium?
- isoproterenol, lidocaine, phenytoin
What other clinical entity is associated with thiamine deficiency aside from Wernickes?
Wet beri-beri
How long after successful methotrexate therapy will the beta-hCG reach 0?
- 2-3 months
What cerebrospinal fluid (CSF) opening pressure is diagnostic for idiopathic intracranial hypertension?
- 250 mm H₂0 or 25 cm H₂0
What is the primary treatment intervention for a patient with sickle cell anemia who presents to the emergency department with an acute ischemic stroke?
- transfusion therapy
What is the most common cause of congenital hydrocephalus?
- aqueductal stenosis
What is the dose of epinephrine for a pediatric patient in cardiac arrest?
- 0.1 mg/kg