Medicine, 07.03.2020 05:42 alcott1110
A 57 year old man undergoes total knee replacement for severe degenerative joint disease. four days after surgery, he develops an acute onset of shortness off breath and right-sided pleuritic chest pain. He is now in moderate respiratory distress with a respiratory rate of 28 breaths per minute, heart rate of 120 bpm, blood pressure of 110/70 mm Hg. Oxygen saturation is 90%. Lung examination is normal. Cardiac examination reveals tachycardia but is otherwise unremarkable. The right lower extremity is post surgical, healing well and 2+ pitting edema, calf tenderness, erythema, an warmth; the left leg is normal. He has a positive Homan sign on the right (calf pain on dorsiflexion).
What is the patient's diagnosis?
What is the risk factors for the diagnosis?
What are the pathophysiological changes associated with this disorder?
What changes might you expect in ventilation/perfusion?
Would you expect to see changes in the spirometry readings (tidal volume and FEV1)?
Answers: 2
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A 57 year old man undergoes total knee replacement for severe degenerative joint disease. four days...
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