Re: Hashi's, What does mid range mean?
To find the middle of a lab range, add together the high and low ends of the range and divide by 2. That's mid-range.
To find what percentage of a range your result is, here's the calculation. For demonstration purposes, I’m using a reference range for FT4 of 0.8 - 1.8 (ng/dL) and a test result of 1.23:
1. Subtract the bottom of the range from the top (1.8-0.8 = 1)
2. Subtract the bottom of the range from your value (1.23 - 0.8 = 0.43)
3. Divide #2 by #1 (0.43/1 = 0.43) and turn the 0.43 into a percentage = 43%
"We can complain because rose bushes have thorns, or rejoice because thorn bushes have roses." Abraham Lincoln