title: Central venous pH changes during major operations.
mesh_terms: D000005:Abdomen / Q000601:surgery; D000136:Acid-Base Equilibrium; D000138:Acidosis; D000328:Adult; D000368:Aged; D000471:Alkalosis; D000758:Anesthesia; D001769:Blood; D001800:Blood Specimen Collection; D001810:Blood Volume; D006348:Cardiac Surgical Procedures; D005260:Female; D006400:Hematocrit; D006801:Humans; D007668:Kidney / Q000502:physiology; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000097:blood; D013514:Surgical Procedures, Operative; D013903:Thoracic Surgery; D013909:Thorax / Q000601:surgery; D014656:Vascular Surgical Procedures; D014680:Veins