RT Book, Section A1 Arora, Nayan A1 Jefferson, J. Ashley A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1193125423 T1 Respiratory Alkalosis T2 Current Medical Diagnosis & Treatment 2023 YR 2023 FD 2023 PB McGraw-Hill Education PP New York, NY SN 9781264687343 LK accessmedicine.mhmedical.com/content.aspx?aid=1193125423 RD 2024/04/18 AB Respiratory alkalosis is always a disorder of hyperventilation, reducing the PCO2 and increasing serum pH (Table 21–16). In pregnancy, progesterone stimulates the respiratory center, producing an average PCO2 of 30 mm Hg and respiratory alkalosis. Salicylates directly stimulate respiration and aspirin toxicity should be suspected when both respiratory alkalosis and an anion gap metabolic acidosis are present, particularly with alkalemia. Symptoms of acute respiratory alkalosis are related to decreased cerebral blood flow induced by the disorder.