hba1c
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HbA1c, Fasting Glucose or OGTT: Choosing the Test
The three routes to a diabetes diagnosis measure different things, and they disagree often enough that which one you are given genuinely matters.
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HbA1c: What Three Months of Glucose Looks Like
HbA1c is described as a three-month average, but recent weeks count far more than older ones, and several common conditions distort it substantially.
