ABSTRACT
Nitric acid (HNO3) is a strong acid and oxidizing agent used for various applications including production of ammonium nitrate in the fertilizer industry. Nitrogen oxides formed when nitric acid interacts with the environment have been implicated in inhalation injuries. This describes a case of a 49-year-old male who presented to the emergency department complaining of an acute onset of shortness of breath approximately 12 hours after being exposed to nitric acid fumes. He presented with a room air oxygen saturation of 80 percent with moderate to severe respiratory distress. His plain film chest radiograph showed bilateral pulmonary infiltrates and pulmonary edema. Over a seven-day hospital course, he had an improvement in his clinical status and chest X-ray with normal pulmonary function tests one month after discharge. Although exposure to the fumes of nitric acid is known to cause delayed pulmonary edema, it is rarely reported in the medical literature. This case serves as a reminder to consider exposure to fumes of nitric acid in a patient presenting with pulmonary edema and highlights the importance of obtaining a work history.
ABSTRACT
Lionfish (Pterois volitans) are venomous fish most often found as aquarium pets throughout the United States. Lionfish envenomations frequently occur on the upper extremities, with pain as the predominant symptom. Immersing the injured part in warm (45 degrees C) water is considered the first and foremost important treatment as it is reported to relieve pain and inactivate the venom. Other methods of analgesia are discussed. We present a case of lionfish envenomation that failed to respond to warm water immersion.
