Which of the following statement(s) is/are true concerning the diagnosis of a peripheral vascular injury?
A.	The presence of a Doppler signal over an artery in an extremity essentially rules out an arterial injury
B.	Doppler examination is a valuable tool in the diagnosis of venous injuries
C.	A gunshot wound in the proximity of a major vessel is an absolute indication for arteriography
D.	Both the sensitivity and specificity of arteriography of the injured extremity approaches 100%
Answer:D
Which of the following statement(s) is/are true concerning the diagnosis of a peripheral vascular injury?
A.	The presence of a Doppler signal over an artery in an extremity essentially rules out an arterial injury B.	Doppler examination is a valuable tool in the diagnosis of venous injuries C.	A gunshot wound in the proximity of a major vessel is an absolute indication for arteriography D.	Both the sensitivity and specificity of arteriography of the injured extremity approaches 100%