Rbc 7.2 hgb 14 hct 42 platelets normal rdw 16 mch low mcv low mchc normal my hct and hemoglobin is normal whats making the high rbc?

All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Talk to the doctor who ordered the tests. Having said that, a hemoglobin variant may be an explanation and that would require an addition test that your doctor can order. Wish you good health!