In the following ABG, is it Respiratory or Metabolic; normal, acid, or alkaline. compensated, uncompensated, partially compensated.
pH 7.41
pCO2 48
HCO3 28
In Patient pH is 41, is within the normal range
PaCO2 is 48, is increased
HCO3 is 28, is increased
It represents a Compensated respiratory acidosis
The normal values are:
pH 7.35-7.45
PaCO2 35-45 mm Hg
PaO2 80-95 mm Hg
HCO3 22-26 mEq/L
O2 Saturation 95-99%
BE +/- 1
Compensation occurs as result of body’s effort to normalize the ph, both the PCO2 and HCO3 rise or decrease together to maintain a normal pH. Partially compensated occurs when the pH remains abnormal irrespective of the PCO2 and HCO3 rise or fall together. This indicates the body’s compensatory mechanism or attempts to regain a normal pH.
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