(73) A 4-year old is brought to the emergency deparmtnet because of a 12-hour history of lethargy. She has vomitted twice during this period. She has not had fever,cough or diarrhea. During the past 2 days, she and her parents have been vacationing in a cabin heated by a wood-burning stove. Both parents report feeling nauseated.. The patients have no history of serious illness, indicating no history of respiratory disease. On arrival, she is somnolent but responsive to verbal stimuli. She is breathing rapidly. Her temperature is 37 degrees celcius(98.6F) , pulse is 140/min, and respiratory are 52/min. Pulse oximetry on room air shows an oxygen saturationof 96%. Physical examination shows slightly flushing cheeks and bright red lips. The lungs are clear to ausculations . Measurement of which of the following is the most appropriate next step in diagnosis? (A) Carboxyhemoglobin concentration (B) Deoxyhemoglobin concentration (C) Methamoglobin concentration (D) FEV1 (E) FVC
(73) A 4-year old is brought to the emergency deparmtnet because of a 12-hour history of lethargy. She has vomitted twice during this period. She has not had fever,cough or diarrhea. During the past 2 days, she and her parents have been vacationing in a cabin heated by a wood-burning stove. Both parents report feeling nauseated.. The patients have no history of serious illness, indicating no history of respiratory disease. On arrival, she is somnolent but responsive to verbal stimuli. She is breathing rapidly. Her temperature is 37 degrees celcius(98.6F) , pulse is 140/min, and respiratory are 52/min. Pulse oximetry on room air shows an oxygen saturationof 96%. Physical examination shows slightly flushing cheeks and bright red lips. The lungs are clear to ausculations . Measurement of which of the following is the most appropriate next step in diagnosis?
(A) Carboxyhemoglobin concentration
(B) Deoxyhemoglobin concentration
(C) Methamoglobin concentration
(D) FEV1
(E) FVC
Step by step
Solved in 2 steps
