Date Published
September 25, 2025
Updated For
ALS PCS Version 5.4
#SWORBHPTips
Pulmonary Thrombosis
What is it?
- Refers to a pulmonary embolism (PE)
- When a blood clot blocks the main artery (or arteries) of the lungs, thus blocking air exchange and causing heart failure. In severe cases, it can cause cardio-respiratory collapse (cardiac arrest)
Clinical Findings:
- JVD
- Clinical signs of DVT
*Note that these signs are very difficult to identify in a patient who is VSA
Risk Factors:
- Deep vein thrombosis (DVT)
- Hx Cancer, pregnancy, or recent surgery
Why Leave Early
- There is a "hail mary" treatment of thombolytics (TPA) in-hospital
- Note that this treatment has very poor efficacy in the setting of cardiac arrest
When to Leave Early
- In the vast majority of times you will NOT: Given the difficulty in identifying PE in the pre-hospital setting and the poor efficacy of the "hail mary" treatment, focus on the basics, utilizing your excellent quality resuscitation via the Cardiac Arrest Medical Directive
- One exception would be when you have a VERY HIGH degree of suspicion of PE, you may consider early transport.
- Example of high degree of suspicion:
- The patient was diagnosed with a DVT, has not been compliant with their anticoagulant and became suddently and severely SOB prior to arrest.
In Summary
- Pulmonary Thrombosis refers to a PE - when a blood clot blocks arteries of the lungs.
- Thrombolysis is a potential treatment available in-hospital to break down the clot
- Consider leaving very early ONLY when you have a VERY HIGH degree of suspicion for a PE as the cause of arrest:
- A very clear incident history AND a clear PMHx highly suggestive of PE (e.g. known PE or DVT) +/- clinical signs
Categories
Additional Resources:
No additional resources available for this #SWORBHPTip.