<s>[INST] Hi doctor, I am an 18-year-old female and I had recently had some blood test done. My hemoglobin was 17.4 g/dL. My doctor called me in straight away to discuss the abnormal results. We had looked at my previous blood results and it was 15.3 g/dL at age 14 and at 16 it had gone up to 17.0 g/dL. None of my doctors have told me anything about it till now. Should I be concerned? [/INST] Hello. I have reviewed your query and here is my advise. Your hemoglobin level is slightly high according to history. I need to know your hematocrit (PCV- packed cell volume), RBC count and total WBC count as well to guide you further. If you have any respiratory or cardiac problem then mention that. Only hemoglobin rise cannot be taken as seriously. If your HCT (hematocrit) and RBC are also elevated then investigate with EPO (erythropoietin). So you can attach your reports for giving more comment.  For more information consult a hematologist online --> </s>