
Had Reaction To Insect Bite On Arm With Dark Circle Around. Given Antibiotic. Blood Work Showed High MCV Level

Hypothyroidism can elevate MCV levels.
Detailed Answer:
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Yes, Hypothyroidism can definitely cause elevation of MCV (mean corpuscular volume) levels. Dehydration has got no direct bearing or relationship with an elevated MCV.
The normal values of MCV is between 80-100. You are just above normal (can otherwise be taken as high normal, in the absence of other known causes).
Vitamin B12 & Folic acid deficiency are the commonest causes of raised MCV. As they are normal in you (as checked by your physician), I feel there is nothing much to worry about as all other hematological parameters are normal in you.
Mild and Isolated elevation in MCV in the absence of Anemia is not a matter of concern and warrants no investigations.
Hope I have addressed your query. Happy to help further
Regards

Answered by

Dr. K. Naga Ravi Prasad
Orthopaedic Surgeon, Joint Replacement
Practicing since :1996
Answered : 2148 Questions
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