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Venography, Lower Extremity Studies

Venography, Lower Extremity Studies is a topic covered in the Davis's Lab & Diagnostic Tests.

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Synonym/Acronym:
Lower limb venography, phlebography, venogram.

Rationale
To visualize and assess the venous vasculature in the lower extremities related to diagnosis of deep vein thrombosis (DVT) and congenital anomalies.

Patient Preparation
There are no activity restrictions unless by medical direction. Instruct the patient to fast and restrict fluids for 8 hr, or as ordered, prior to the procedure. Fasting may be ordered as a precaution against aspiration related to possible nausea and vomiting. The American Society of Anesthesiologists has fasting guidelines for risk levels according to patient status. More information can be located at www.asahq.org.

Note: If iodinated contrast medium is scheduled to be used in patients receiving metformin or drugs containing metformin for type 2 diabetes, the drug may be discontinued on the day of the test and continue to be withheld for 48 hr after the test.

Regarding the patient's risk for bleeding, the patient should be instructed to avoid taking natural products and medications with known anticoagulant, antiplatelet, or thrombolytic properties or to reduce dosage, as ordered, prior to the procedure. Number of days to withhold medication is dependent on the type of anticoagulant. Note the last time and dose of medication taken. Protocols may vary among facilities.

Normal Findings
No obstruction to flow and no filling defects after injection of radiopaque contrast medium; steady opacification of superficial and deep vasculature with no filling defects.

Critical Findings and Potential Interventions

  • DVT
  • Pulmonary embolism (PE)

Timely notification to the requesting health-care provider (HCP) of any critical findings and related symptoms is a role expectation of the professional nurse. A listing of these findings varies among facilities.

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Citation

Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Venography, Lower Extremity Studies." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425344/5.0/Venography_Lower_Extremity_Studies.
Bladh ML, Van Leeuwen AM. Venography, Lower Extremity Studies. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425344/5.0/Venography_Lower_Extremity_Studies. Accessed August 17, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Venography, Lower Extremity Studies. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425344/5.0/Venography_Lower_Extremity_Studies
Bladh ML, Van Leeuwen AM. Venography, Lower Extremity Studies [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 August 17]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425344/5.0/Venography_Lower_Extremity_Studies.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Venography, Lower Extremity Studies ID - 425344 A1 - Bladh,Mickey Lynn, AU - Van Leeuwen,Anne M, BT - Davis's Laboratory & Diagnostic Tests UR - https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425344/5.0/Venography_Lower_Extremity_Studies PB - F.A. Davis Company ET - 7 DB - Nursing Central DP - Unbound Medicine ER -