Hi all! I'm an ER nurse, and had a pt last noc who swore up and down "there's no way I can be pregnant....my period is 4 days late, but I took a test (urine) this morning and it was negative" The doc wanted to do a serum beta, and lo and behold PREGNANT! Thought I would come to the source and see if any of you guys know how common this is. I've had a couple in the last 6 months (one was a urine preg we did 2 days previous, pt came back and we did a beta).
Anyone know what the percentage is of women who don't show positive on urine HCGs?