Related Experiment Video
Updated: Aug 23, 2025

A Porcine Model of Acute Autologous Pulmonary Embolism
Published on: September 6, 2024
An Ambulatory Pathway for the Investigation of Patients with Suspected Pulmonary Embolism
J Mulcaire1, P O'Brien1, M Sheehan1
1Emergency Department, St. Vincent's University Hospital.
Abstract:
Aims The aim of this project was to provide an ambulatory pathway for diagnosis and management of patients with suspected Pulmonary Embolism (PE) with "low-risk" features. Methods A structured algorithm for the management of suspected PE was designed and implemented in April 2021. This involved the development of local guidelines to identify those "low-risk" patients with suspected PE, through the use of modified sPESI and Hestia criteria. This pathway was audited monthly to establish effect on admission and hospital length of stay. Results 51 CT PAs were performed by the Emergency Department in April 2021. Total number of CT confirmed PEs in April was 7(11%). 12 "low-risk" patients with suspected PE were identified and placed on the "Ambulatory Suspected Pulmonary Embolism Pathway". One (8.3%) patient on this pathway had a confirmed PE. Patients placed on this pathway spent significantly less time in the Emergency Department and in hospital with greater satisfaction by physicians using this pathway. Conclusion This pathway has succeeded in significantly decreasing length of stay both in the ED and in hospital for patients with suspected and confirmed PE.
Related Concept Videos
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Pulmonary Embolism I: Introduction
Pulmonary Embolism III: Nursing Management
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Venous Thrombosis IV: Nursing Management

