All of the Following Are True About Capillary Blood Gas

Multiple Choice

All of the following are true about capillary blood gas sampling except:

A) capillary sampling can be used in lieu of direct arterial access in some infants and small children.
B) a capillary sample PO₂ provides a fairly close estimate of actual arterial oxygenation.
C) clinicians should exercise caution when using capillary samples to guide decisions.
D) properly obtained capillary blood can provide estimates of arterial pH and PCO₂ levels.