Flashcards
Acid Base Disorders
Cards in this deck (20)
- 1What are the primary measurements of the blood gas machinepH, pCO2, and pO2
- 2What is pH?The negative log of the Hydrogen concentration -log[H+]
- 3What is pCO2?The partial pressure of carbon dioxide
- 4What is pO2?The partial pressure of oxygen
- 5What are 'Respiratory acid' and 'Respiratory acidosis'?Carbon dioxide is 'respiratory acid' and is the only acid which can be controlled by respiration. When the pCO2 is high, there is 'respiratory acidosis'
- 6What are 'Metabolic acid' and 'Metabolic acidosis'?Metabolic acids are all the body's acids except carbon dioxide - they are not controlled by respiration, hence they have to be neutralised, metabolised, or excreted by the kidney. Metabolic acidosis is a pH which is more acid than appropriate for the pCO2.
- 7What is an acid?A substance that dissociates in water to produce hydronium ions (H3O+) or more commonly (H+)
- 8What is a base?A substance that can accept protons (H+)
- 9What is a buffer?A mixture of a weak acid and its conjugate base that attenuates a change in pH when a strong acid or base is added
- 10Acute Respiratory Acidosis: pH, pCO2, HCO3, Base excesspH: Low
pCO2: High
HCO3: N
Base excess: N - 11Acute Metabolic Acidosis: pH, pCO2, HCO3, Base excesspH: Low
pCO2: N
HCO3: low
Base excess: low - 12Acute Respiratory Alkalosis: pH, pCO2, HCO3, Base excesspH: High
pCO2: low
HCO3: N
Base excess: N - 13Acute Metabolic Alkalosis: pH, pCO2, HCO3, Base excesspH: High
pCO2: N
HCO3: High
Base excess: High - 14Chronic Respiratory Acidosis: pH, pCO2, HCO3, Base excesspH: N
pCO2: High
HCO3: High
Base excess: High - 15Chronic Metabolic Acidosis: pH, pCO2, HCO3, Base excesspH: N
pCO2: Low
HCO3: Low
Base excess: Low - 16Chronic Respiratory Alkalosis: pH, pCO2, HCO3, Base excesspH: N
pCO2: Low
HCO3: Low
Base excess: Low - 17Chronic Metabolic Alkalosis: pH, pCO2, HCO3, Base excesspH: N
pCO2: High
HCO3: High
Base excess: High - 18What can be the cause of respiratory acidosis?Rise in CO2 production (fever, sepsis), or failure of ventilation (CNS causes, muscle weakness, increased dead space)
- 19What can be the causes of respiratory alkalosis?Result of hyperventilation or decreased CO2 production
- 20—
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- Clinical Chemistry Flashcards on Acid Base Disorders, created by Jessica Taylor on 12/05/2020.
- Created by
- Jessica Taylor · May 2020
- Updated
- May 12, 2020
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