Oops... Like I said, I'm math-challenged...☺️

I hear ya on the reading of strips for medical tests. I remember when I was pregnant and my Dr's office had us patients dip a test strip ourselves in our urine. Then we were supposed to come out and put the strip on a piece of paper that had our name, the date, and the time of appt. Then we went back to the waiting room until they called us to get weighed and put in an exam room. It was at this point that the medical assistant would glance at the strip, toss it in the garbage and record the "results". I never saw her actually compare the strip to anything. Not that it was accurate at that point anyway... It was supposed to be read at intervals up to one minute, I think.... I know the colors changed while it laid there. Plus there's about 5 other problems with their method that I can think of.

I wonder how many extra lab tests had to be done because the reagent strips weren't used as designed.... Talk about wasted health care $$ ...

But I digress... Sorry...

Thank you for clarifying what chem geek said.... Reading it again, it shouldn't have needed any explanation.... Where do I report for my dunce cap?

Thank You, April