ABGs

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Author:
pm08jnh
ID:
134928
Filename:
ABGs
Updated:
2012-02-13 08:21:22
Tags:
ABG blood gas analysis
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Description:
ABGs
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  1. true or false.
    When HCO3 is raised so is the base excess.
    True. This occurs in metabolic alkalosis. A respiratory alkalosis would have a raised pH with low CO2. BE and HCO3 may be normal or low if the body has compensated.
  2. Normal HCO3 range
    22-26. (remember a number in the 20s is normal)
  3. Normal range for BE?
    -2 TO +2.

    When >+2 indicates a metabolic alkalosis or a compensated respiratory acidosis (where pH is down, CO2 is up and the bicarb raises to compensate).
  4. Interpret the following:
    pH 7.25
    CO2 11kPa
    O2 11kpa
    BE +3
    Compensated respiratory acidosis.
  5. pH 7.6
    CO2 5kpa
    02 14kpa
    bicarb 55
    metabolic acidosis (no respiratory compensation as CO2 not increased from hypoventilation)
  6. pH 7.4
    CO2 10kpa
    02 7kpa
    BE +5
    • type II respiratory failure with chronic compensation of raised CO2.
    • CO2 must be >6.5 in type II with, often hypoxaemia (<8kpa).

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