Database: thrombosis_prediction
Question: How old was the patient who had the highest hemoglobin count at the time of the examination, and what is the doctor's diagnosis?
SQL: SELECT STRFTIME('%Y', T2.Date) - STRFTIME('%Y', T1.Birthday), T1.Diagnosis FROM Patient AS T1 INNER JOIN Laboratory AS T2 ON T1.ID = T2.ID ORDER BY T2.HGB DESC LIMIT 1