Thank yousomuch.so even though the range of 0-229 being within normal my d-dimer quant of 228 is ok?although it's so close to the maximum range amount

Normal: The normal range for any test usually spans two standard deviations, or about 87% of normal. Thus about 6% of tests just above or just below normal are also normal. So a test result just within the upper limit of normal is quite normal, with a safety range just above or below for 6%!of the population from which the "normal" range is determined. That's a long way of saying your result is very norma