In suspected PE with low probability, which test should be performed first?

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Study for the Clinical Decision-Making (CDM) Cases Part I Test. Engage with challenging scenarios and questions, complete with hints and explanations for better understanding. Prepare thoroughly for your exam!

Multiple Choice

In suspected PE with low probability, which test should be performed first?

When the likelihood of pulmonary embolism is low, start with a D-dimer test. Its high sensitivity means a negative result effectively rules out PE in patients with low pretest probability, sparing them unnecessary imaging. If the D-dimer is positive, you then move on to imaging to confirm the diagnosis, typically CT pulmonary angiography. Chest X-ray isn’t helpful to diagnose PE, and echocardiography can show complications like right heart strain but isn’t diagnostic for PE itself. CT pulmonary angiography is the definitive imaging test used after a positive D-dimer or when clinical suspicion remains high.

In suspected PE with low probability, which test should be performed first?

Study for the Clinical Decision-Making (CDM) Cases Part I Test. Engage with challenging scenarios and questions, complete with hints and explanations for better understanding. Prepare thoroughly for your exam!

In suspected PE with low probability, which test should be performed first?

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