Ultrasound Doppler Lower Extremity Vessels

Indications:
 Suspected DVT
 Follow-up examination to evaluate propagation of venous thrombus
 Source evaluation for known or suspected PE
 Chronic venous insufficiency
 Swollen or painful leg

Strengths:
 Noninvasive
 Fast
 Can be repeated serially
 Readily available
 Inexpensive
 Can be performed at bedside
 No ionizing radiation

Weaknesses:
 Poor visualization of pelvic and calf veins
 Negative test does not conclusively “rule out” DVT at presentation; repeat examination after 5 to 7 days may be necessary to exclude clinically suspected thrombosis in symptomatic patients
 Operator dependent; results may be affected by skill of technician

Comments:
 Venous Doppler is the initial test of choice in suspected DVT.

  • Imaging

Patient Instructions:
-
Sample Type:
Others
Result Time:
-
Storage & Transportation:
-
Cutoff Times:
-

30 minutes required for samples arrived at Cao Thang till receive by Laboratory

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