Answer 1: Deep venous thrombosis is more likely to occur in the deep venous system than in the superficial veins because the deep veins are larger and have slower blood flow, which increases the risk of clot formation.
Answer 2: A thrombus in the anterior tibial veins is rare because the anterior tibial veins are relatively small and have a higher rate of blood flow, which reduces the risk of clot formation.
Answer 3: Some situations that may lead to false-positive results during the compression portion of an extremity venous evaluation include incorrect technique, incorrect positioning of the patient, and incorrect interpretation of the results.
Answer 4: The advantages of the new oral anticoagulants include fewer drug interactions, fewer dietary restrictions, and fewer monitoring requirements. The disadvantages include a higher risk of bleeding, a higher risk of drug interactions, and a higher cost.