High hemoglobin what to do?

Question
Hello doctor,
I had a blood test 1.5 years ago, hemoglobin 18.4 and recently 18.1 but still higher than normal. The doctor asked me, what should I do with high hemoglobin?
Phan Van Hoang (2000)
Answer
Answered by Doctor, Specialist II Le Thi Na - Hematologist - Laboratory Department, Vinmec Times City International Hospital.
Hello,
With the question "What to do with a high hemoglobin index?", the doctor would like to answer as follows:
Hemoglobin plays the role of transporting oxygen from the lungs to the organs and receiving CO2 from the organs. organ that transports CO2 to the lungs. Hemoglobin increases when the body is dehydrated, cardiopulmonary disease, polycythemia vera... The hemoglobin index has units of g/l or g/dl, the reference range depends on age, sex and Laboratory. Your test result does not specify the unit of calculation, you need to compare it with the reference range and the unit on the result sheet. If the results are higher than normal, you should see a hematologist to find the cause and get specific advice.
If you still have questions about the hemoglobin index, you can go to the hospital of Vinmec Health System for further examination and advice. Thank you for trusting and sending questions to Vinmec. Wishing you lots of health.
Best regards!