A24-year-old g4p2 woman at 34 weeks gestation complains of a cough and whitish sputum for the last three days. she reports that everyone in the family has been sick. she reports a high fever last night up to 102°f (38.9°c). she denies chest pain. she smokes a half-pack of cigarettes per day. she has a history of asthma with no previous intubations. she uses an albuterol inhaler, although she has not used it this week. vital signs are: temperature 98.6°f (37°c); respiratory rate 16; pulse 94; blood pressure 114/78; peak expiratory flow rate 430 l/min (baseline documented in the outpatient chart = 425 l/min). on physical examination, pharyngeal mucosa is erythematous and injected. lungs are clear to auscultation. white blood cell count 8,700; arterial blood gases on room air (normal ranges in parentheses): ph 7.44 (7.36 - 7.44); po2 103 mm hg (> 100), pco2 26 mm hg (28 - 32), hco3 19 mm hg (22 - 26). chest x-ray is normal. what is the correct interpretation of this arterial blood gas? a. acute metabolic acidosisb. compensated respiratory alkalosisc. compensated metabolic alkalosisd. hypoventilatione. hyperventilation