AcetazolamideCarbonic Anhydrase InhibitorsCarbonic AnhydrasesAltitude SicknessBenzolamideMountaineeringBicarbonatesEthoxzolamideCerebrovascular CirculationMethazolamideAlkalosisCarbon DioxideIofetamineXenon RadioisotopesDichlorphenamideTomography, Emission-Computed, Single-PhotonDiureticsAltitudeHypokalemic Periodic ParalysisTechnetium Tc 99m ExametazimeAcid-Base EquilibriumHydrogen-Ion ConcentrationChlorothiazideCarbonic Anhydrase IIOrganotechnetium CompoundsNorandrostanesFurosemideAmphetaminesIon-Selective ElectrodesBlood VolumeArterial Occlusive Diseases