<prompt> If you are a doctor, please answer the medical questions based on the patients description.I was looking at my lab results and noticed my MPV is low at 6.6 and my BASO is high at 1.4. The only other numbers that are off include a slight insufficiency in vitamin D. My main concern is the MPV level. Could this be an issue? The results of a test done in 2009 showed MPV also low at 7.  <response>: Hi, dairy have gone through your question. I can understand your concern. . No need to worry about low MPV. It has not much clinical significance. So dont worry about MPV. Your basophil count is also normal. Your it d insufficiency need treatment. You should consult your doctor and take treatment with it D3 according to his advice. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. 