Steve Wickham, who is a nurse, draws blood at the midpoint of his and his wife Karen’s six-week diabetes seminar. The hemoglobin A1c levels measured by the lab test help patients monitor whether the diet and exercise changes they’re engaged in are making a difference in their blood sugar levels.

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Steve Wickham, who is a nurse, draws blood at the midpoint of his and his wife Karen’s six-week diabetes seminar. The hemoglobin A1c levels measured by the lab test help patients monitor whether the diet and exercise changes they’re engaged in are making a difference in their blood sugar levels.