I wonder if someone might help shed some light here. Post-op day 4, abdo abcess drainage patient who went from room air to tachypneic 30-40 and 100% FiO2 over a couple of hours. I did a D-dimer as I suspected a possible PE. Came back 6000. Doc said it would be elevated since the patient is 4 days post-op, and you need a result of 10 000 for it to indicate PE.
Then a few days later, 3 day post-op cystectomy, same symptoms as patient above, D-dimer 3120, but ultrasound showed PE.
I don't understand! Please help! Many thanks in advance.
Hmm, thanks for all the wonderful feedback. So in these cases, both patients should have been scanned then!
How many days post-op would I expect to see an elevated D-dimer in the absence of liver diseases?
Last edit by maloneys on Mar 11, '13