The patient then opens his or arterial distribution of either the � her hand and either the radial or radial or ulnar artery, depending on " the ulnar artery is released. The which was released. � g process is repeated for the other '" artery. o '" Homans' sign II- To detect the pres The calf muscle is gently squeezed, or Pain that is elicited with either squeezing � ence of deep vein the foot is quickly dorsiflexed. or dorsiflexing may indicate a deep :t -< � thrombosis vein thrombosis. � ,... • A 50% false·posirive rare occurs with this test. Vascular laboratOry studies are more sensitive. J! Sources: Data from JM Black, E Matassarin-Jacobs (eds). Luckmann and Sorensen's Medical-Surgical Nursing: A Psycnophysiologic Approach � (4th ed). Philadelphia: Saunders, 1993; P Lanzer, J Rosch (eds). Vascular Diagnostics: Noninvasive and Invasive Techniques, Peri·lnterven '" tional Evaluations. Berlin: Springer-Verlag, 1994; and JW Hallet, DC Brewster, RC Darling (cds). Handbook of Patient Care in Vascular Sur � gery (3rd ed).
