"And as far as I'm aware a negative hcg does rule out ectopic, or at least rules out an ectopic that's going to cause any problems."
Well it depends on what you mean by a negative test. I know of at least one young woman with a negative BHCG urine who had ruptured an ectopic. Blood HCG (result available after the operation!) was very weakly +ve. I'm afraid I don't know the values...
I know n=1 hardly makes for EBM but it does make you a bit edgy
Peter Cutting
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