After obtaining an arterial blood sample from an arterial line, you would do all of the following except:

a. flush the line and stopcock with the hepa-rinized intravenous solution.
b. aspirate at least 5 ml of fluid or blood (dead space or waste).
c. confirm stopcock port open to intravenous bag solution and catheter.
d. confirm undamped pulse pressure wave-form on monitor.

ANS: B
Box 19-4 outlines the proper procedure for taking an arterial blood sample from a three-way stopcock system.

Health Professions

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