A 24-year-old male is brought in by ambulance to the emergency department after he was found unresponsive at home for an unknown length of time. Upon arrival, he is found to be severely altered and unable to answer questions about his medical history. Based on clinical suspicion, a panel of basic blood tests are obtained including an arterial blood gas, which shows a pH of 7.32, a pCO2 of 70, and a bicarbonate level of 30 mEq/L. Which of the following is most likely the primary disturbance leading to the values found in the ABG?
ARespiratory acidosis
BMetabolic alkalosis
CRespiratory alkalosis
DMetabolic acidosis
EMixed alkalosis
A 35-year-old man presents to pulmonary function clinic for preoperative evaluation for a right pneumonectomy. His arterial blood gas at room air is as follows: pH: 7.34 PaCO2: 68 mmHg PaO2: 56 mmHg Base excess: +1 O2 saturation: 89% What underlying condition most likely explains these findings?
ACystic fibrosis
BBronchiectasis
CChronic obstructive pulmonary disease
DObesity
EAcute respiratory distress syndrome
In which of the following pathological states would the oxygen content of the trachea resemble the oxygen content in the affected alveoli?
AEmphysema
BExercise
CPulmonary embolism
DPulmonary fibrosis
EForeign body obstruction distal to the trachea
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