Pulmonary Emboli (P 603)

● Occlusion of portion of pulmonary artery by a blood clot – from venous circulation – lower extremities or heart.

● Causes ventilation-perfusion mismatch (V/Q) – Ventilated alveoli no longer perfused due to clotted artery.

● Risk Factors

o Venous stasis (w/prolonged immobility); Central venous catheters; Surgery (NPO, dehydrated, immobilized

pts); Obesity; Advanced age; Hypercoagulability (Platelets >400K and not enough fluids; sticky blood); Hx of

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ATI Med-Surg Proctored Exam 2019 (Complete Version) Latest Updated Solution
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