text: When recurrent deep vein thrombosis (DVT) is suspected, the initial test should be a compression ultrasound if a previous ultrasound is available for comparison. A highly-sensitive D-dimer is also a possible initial test. If the compression ultrasound results are abnormal but non-diagnostic (increase in residual venous diameter of < 4 but ≥ 2 mm), further testing with venography or CT venography may be indicated. Patients suspected to have a recurrent episode of DVT may benefit from thrombophilia evaluation.
option_0: Deep vein thrombosis special scenario recurrence
option_1: Suppurative thrombophlebitis risk factors
option_2: Deep vein thrombosis special scenario upper extremity
option_3: Varicose veins risk factors
option_4: Portal vein thrombosis risk factors
option_5: Deep vein thrombosis differential diagnosis
option_6: Deep vein thrombosis causes
option_7: Splenic vein thrombosis risk factors