What is the name of this test to be done before drawing an arterial blood gas sample:: (A) Virchow test, (B) Water hammer test, (C) Allen test, (D) Trendelenburg test
Answer is C. c. Allen testA - Both radial & ulnar artery are occluded;B - Ulnar artery kept occluded, Radial artery released; These are steps of Allen's test