Had an 83 year old ER patient with chest and shoulder pain and a room air O2 sat of 89%. Cardiac labs came back normal. D-dimer was critically elevated at 700. ER doc ordered chest and shoulder X-rays and a CT c-spine (no hx of trauma, but thought something in his neck could be causing shoulder pain.) Everything came back normal. I finally asked the ER doc if he was worried about the d-dimer, and he said no. He said it was normal for his age. He refused to order a PE study. This is brand new information for me. Anyone else?
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source https://www.reddit.com/r/Radiology/comments/o7hk6n/ddimer/
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