Help with test results high rbc 5.19, hgb 15.5, hct 45.4, low rdw 11.6, &ldh 117? what does this mean? does my obgyn need this info, cause miscarriage?

Normal.: Labs look normal. The most important piece of this is missing - why were these drawn? It is always good to have your gyn doc know your numbers.

No major issue, but.: Should tell your ob, since the h&h are a little high for female, so could indicate mild dehydration--which can cause ptl / irritation. Rdw is measure of the diameters of red blood cells (rbc) to see if too high a #, suggests problem. Little low no biggie. Lactate dehydrogenase (ldh - aka: "little darn help") is a very nonspecific marker of inflammation / body activity, but is ok.