A client, experiencing respiratory distress, is ordered blood to be drawn for arterial blood gases (ABGs) via the radial artery. Before the blood is drawn, which circulation is assessed?
A) Carotid circulation
B) Ulnar circulation
C) Femoral circulation
D) Temporal circulation
B
Feedback:
Ulnar circulation is assessed using the Allen's test. The Allen's test is completed to assess blood supply through the ulnar and radial arteries. Noting both circulations is helpful when using an artery for the ABG draw. It is important to ensure adequate secondary blood flow to the hand other than through the radial artery in case the artery were to be damaged. No other circulation is assessed.
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