copyright-Induced Ventilation/Perfusion Mismatch Mimicking Pulmonary Embolism

copyright-Induced Ventilation/Perfusion Mismatch Mimicking Pulmonary Embolism

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Pulmonary complications from copyright use can range from bronchospasm to vasospasm smok rpm c coils leading to pulmonary infarction.Profound vasospasm may also lead to perfusion defects presenting as pulmonary embolism on ventilation-perfusion scan.A 65-year-old patient with a past medical history of substance abuse and chronic kidney disease presents to the emergency department with sudden-onset chest pain and shortness of breath.

Ventilation-perfusion scan revealed filling defect most gildan midnight notably in the lingual lobe.He was later discharged on warfarin for the management of pulmonary embolism.The patient presented to the emergency department 2 weeks later with similar complaints; the international normalized ratio was subtherapeutic, and urine drug screen was positive for copyright.

Repeat ventilation-perfusion scan revealed no filling defects.Follow-up bilateral venous Doppler of lower extremities and D-dimer were within normal limits.