deck_1649963 Flashcards
The very serious business of recognising respiratory and metabolic acidaemia and alkalosis
And I mean serious.
pH - D pCO2 - UHCO3- - -/-pO2 - DD - DownU - Up -/- - No change
• Hypoventilation means raised pCO2 • Hyper capnia -> Low pH • HCO3- unchanged • Respiratory acidaemia
pH - D/-pCO2 - UHCO3- - UPO2 - D
• Compensated (partially or fully) respiratory acidaemia • Kidneys have increased HCO3- • Increases buffering of H+ ions caused by increased pCO2
pH - UpCO2 - DHCO3- - -/-PO2 - -/U
• Respiratory alkalaemia • Hyperventilation has lower pCO2 • Hypocapnia -> High pH • HCO3- unchanged
pH - UpCO2 - DHCO3- - DPO2 - U
• Compensated (partially or fully) respiratory alkalemia • Kidneys have decreased HCO3- • Decreased buffering of H+ ions
pH - DpCO2 - -/-HCO3- - DPO2 - -/-Anion Gap - U
• Metabolic acidosis • Decreased HCO3- -> Less buffering of H+ ions Increase in unmeasured anions
pH - DpCO2 - DHCO3- - DPO2 - UAnion gap - U
• Compensated (partially or fully) metabolic acidosis • Increased respiratory rate -> Hypocapnia -> Raised pH • Anion gap still increased
pH - UpCO2 - -/-HCO3- - UPO2 - -/-
• Metabolic alkalosis
pH - UpCO2 - U HCO3- - UPO2 -D
• Compensated metabolic alkalosis • Decreased respiratory rate -> Hypercapnia • Decreased pH Can only partially compensatte