Related Experiment Video
Updated: May 15, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Lowering DVT-Related ED Visits via a Primary Care POCUS Pathway
William Hui1, Jo-Anne Suffoletto1, Steven Lin1
1Division of Primary Care and Population Health, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.
Background:
Lower extremity deep vein thrombosis (DVT) requires prompt diagnosis to prevent pulmonary embolism (PE). DVT point of care ultrasound (POCUS) is shown to be effective in emergency department (ED) settings, though few studies have demonstrated impact in primary care settings. This quality improvement (QI) project aimed to establish a primary care DVT POCUS pathway to reduce ED visits.
Methods:
From June 2024 to August 2025, a POCUS fellowship-trained physician at an academic family medicine clinic received referrals from other primary care clinicians for suspected DVTs and performed POCUS evaluations and DVT management. Patient outcomes and clinician feedback were collected via chart review and surveys to assess the project's feasibility and acceptability.
Results:
Eighty patients were evaluated, with a positive DVT rate of 5% (4/80). The pathway potentially avoided ED visits for 46% of patients (37/80), translating to an estimated cost savings of $85,100. With a 98% (43/44) response rate, most referring clinicians strongly agreed that the DVT pathway improved patient safety and access, reduced their cognitive burden, and reduced ED referrals.
Conclusions:
The DVT POCUS pathway effectively managed patients with suspected DVT in the primary care setting, demonstrating feasibility and acceptability with clinicians, as well as potential cost savings. This model warrants further research as a framework for integrating DVT POCUS into primary care, enhancing diagnostic capabilities and patient care, while alleviating pressures on EDs.
Related Concept Videos
Venous Thrombosis III: Interprofessional Care
Pulmonary Embolism III: Nursing Management
Peripheral Artery Disease III: Interprofessional Care
Venous Thrombosis IV: Nursing Management
Peripheral Artery Disease V: Postoperative Nursing Management
Peripheral Artery Disease IV: Nursing Management