ACMT Toxicology Visual Pearls: Exotic Viper Envenomation
A man was bitten twice on the dorsal radial aspect of his right hand while feeding his pet West African Bush Viper. The patient immediately tied multiple tourniquets around his right arm before presenting to the emergency department. During examination he is complaining of swelling and severe pain in his right upper extremity, but has no other complaints. What are the appropriate next steps in managing this patient?
- Apply ice to the bites
- Measure compartment pressures in the right arm and forearm
- Perform a fasciotomy
- Remove the tourniquets and order hematologic studies
- Use a venom extractor to reduce venom burden

In emergency medicine, we are so heavily trained in resuscitation that any senior resident could recite the ACLS algorithm to you after being woken up at 3 am. However, the real work begins after the pulse return. Up to two-thirds of patients with return of spontaneous circulation (ROSC) will not survive to discharge.
The seeds of the Suicide Plant, when ingested, may result in significant toxicity, including the ECG findings shown. Which kind of toxicity does it cause?
It is thought that the autonomic nervous system is likely involved in migraines and other primary headache disorders given commonly associated symptoms such as nausea, lacrimation, emesis, and rhinorrhea. The sphenopalatine ganglion (SPG) is an extracranial parasympathetic ganglion with both sensory and autonomic fibers. It has therefore been hypothesized that blockade of the sphenopalatine ganglion may produce relief from primary headaches by modulating the autonomic fibers involved in headache disorders.
Pediatric community-acquired pneumonia (CAP) is an acute, common, and potentially serious infection of the pulmonary parenchyma in children. In November 2010, the American Academy of Pediatrics endorsed “The management of community-acquired pneumonia in infants and children older than 3 months of age: clinical practice guidelines by the Pediatric Infectious Diseases Society and the Infectious Diseases Society of America.” [