urine vs blood?

Question

got a positive urine test this morning, and my reproductive endocrinologist wants me to come in for a blood test today because I have PCOS. 
is there any possibility that a urine test would be wrong? A Dan, could a urine test be positive and then a blood test shows that it's negative? I'm under the impression that they are measuring the same thing.

Answer

Blood tests are more sensitive. They measure the same thing. When I was in high school I took accutane which can cause EXTREME birth defects so I was required to get a pregnancy test once a month (even though I wasn't sexually active) and it had to be a blood test because they are more accurate.

urine vs blood?

Let's Glow!

The Top Baby Tracker App: Embrace New Beginnings with Tender Care

The Top Fertility Tracker App: Your Path to Achieving Pregnancy

The Top Pregnancy App: Nurturing Your Journey to Motherhood

The Top Period Tracker for Empowering Your Menstrual Health Journey