ZocdocAnswersI have elevated platelets, elevated calcium and low vitamin D. Is this a concern?


I have elevated platelets, elevated calcium and low vitamin D. Is this a concern?

I recently had a blood draw and the results came back with high calcium 10.3, high platelets 380, and low vitamin D 21.7. Is this something I should be overly concerned about? The only medical issue I've ever had is hypothyroidism which i was diagnosed with in 2008/2009. I'm 30 years old and the rest of the blood counts are in the normal range.


Thank you for your interesting question. In order to provide an accurate diagnosis, I would need more information. I would need to review your entire medical history and also perform a thorough physical exam. I would also need to review the full details of your blood work. Only after collecting this information would it be possible to provide a diagnosis. Therefore, I strongly encourage you to discuss these results with a primary care doctor. An elevated platel count, or thrombocytosis, has several potential causes. However, it is important to note that you have not provided the normal range for a platelet count for the lab that processed your test. The platelet count can become elevated as a general inflammatory response to illness or injury. There is also a hematologic disorder known as essential thrombocytosis which can cause an elevated platelet count. Vitamin D helps control calcium absorption and may explain some of these blood findings. Your history of hypothyroidism is interesting, as a nearby gland, the parathyroid gland, helps regulate calcium levels. Our main source of vitamin D is sunlight, although we also collect it from our diet. I strongly encourage you to discuss these issues with a primary care doctor.

This answer is for general informational purposes only and is not a substitute for professional medical advice.

If you think you may have a medical emergency, call your doctor or (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under Zocdoc’s Terms of Service.