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Nurs 5463 - Exam 1 Detailed Questions And Expert Answers
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Nurs 5463 - Exam 1 Detailed Questions And Expert Answers
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Nurs 5463 - Exam 1 Detailed Questions AndExpert Answers
Normal acid base values
pH:
pCO2:
HCO3:
PaO2: - ANS pH: 7.35 - 7.45
pCO2: 35-45 / respiratory
HCO3: 22-26 / metabolic
PaO2: 80-100
What happens to hydrogen ions and bicarbonate in acidosis? - ANS Hydrogen ions
increase because of the increase in CO2 (CO2 is an acid) or decrease in bicarb.
What happens to hydrogens ions and HCO3 in alkalosis? - ANS reduction of
hydrogen ions as evidenced by a decrease in the pCO2 or increase in the HCO3.
How will the body compensate in respiratory acidosis? - ANS - the cell buffering
will occur primarily through hemoglobin and proteins which leads to the
production of HCO3 within the kidneys.
, - If the CO2 remains persistently elevated, then there is an increased excretion of
titratable acid and ammonium by the kidneys leading to the development of
HCO3.
How will the body compensate in respiratory alkalosis? - ANS - cellular buffering
occurs in which bicarbonate is combined to hydrogen ions (excrete).
- Ultimately, there is a decrease in the overall plasma bicarb. The kidneys over time
will increase bicarbonate excretion as well as various other components to help
decrease overall plasma bicarbonate.
How will the body compensate for metabolic acidosis? - ANS - compensation is
attempted by decreasing the pCO2.
- How is this accomplished?
- The patient will become tachypneic to blow off extra CO2. The patient attempts
to do this by increasing their tidal volume or rate of breathing.
How will the body compensate for metabolic alkalosis? - ANS - compensation is
attempted by increasing the pCO2.
- There is a decrease alveolar ventilation. The patient may take shallow or less
breaths to hold onto more CO2.
What's the goal of acid-base compensation? - ANS - to return pH as close to
physiologically as normal
Cause of respiratory acidosis - ANS · CNS Depression
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