methylene blue antidote cyanide poisoning

❑ Cyanide poisoning is an inhalation hazard in many enclosed-space fires.Ĭyanide is one of the most rapidly acting poisons known and accounts for many suicidal and homicidal deaths. ❑ Cyanide contamination in air and water arises primarily from industrial pollution and vehicle exhaust. ❑ Many fruits and vegetables contain cyanide-generating substances. The following day, having heard that cyanide may have played a role in the condition of these smoke-inhalation victims, a neighboring couple, who have recently learned that for 2 years they had been drinking well water containing 212 parts per billion (ppb) cyanide, are concerned that they may experience adverse health effects. The child remains bradycardic and hypotensive. The mother’s initial carboxyhemoglobin level is 25% the child’s carboxyhemoglobin level is 40%.

Upon arrival at the hospital, the woman is improved but is lethargic and disoriented the child is still unresponsive even to deep pain. He is intubated and mechanically ventilated, and is being administered supplemental oxygen.

The child’s vital signs include BP 50/20 mm Hg, pulse 50/min, respiration rate 0/min. She is being administered 100% oxygen via face mask. The woman’s vital signs include BP 70/50 mm Hg, pulse 120/min, respiration rate 30/min. Soot is present in the child’s nose and throat.Įn route to the hospital, IVs were started. The mother has nonpurposeful movements, but the child is flaccid and unresponsive to painful stimuli. The paramedics report no evidence of trauma or burns in either victim.

It is probable that the woman was in another part of the house when the fire began and attempted to rescue the child but was overcome by the thick black smoke. The fire, which was confined to the child’s bedroom and two adjacent rooms, was started by a toy that the child poked into an electric space heater. Upon arrival at the scene, firefighters found both victims unconscious near the doorway the entire house was smoke-filled. They will arrive within 10 minutes with two apparent smoke-inhalation victims: a young woman, approximate age 35, and her son, approximate age 5. You are alerted by paramedics who are en route to the emergency department. Hypotension and coma in a 5-year-old victim of smoke inhalation

Methylene blue antidote cyanide poisoning