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    Blood test information

    Hemoglobin A1c (HbA1c) Blood Test

    Measures average blood sugar levels over the last 2-3 months and is a key tool for diagnosing and monitoring diabetes.

    Result: 2-4 days Code: 83036
    201 

    Description of the blood Analysis: 

    Hemoglobin A1c, often called the “A1c” or “glycated hemoglobin” test, measures your average blood sugar levels over the past 2 to 3 months. When sugar (glucose) enters your bloodstream, it naturally sticks to hemoglobin, the protein in your red blood cells. Since red blood cells live for about 120 days, the A1c test can “read” the sugar record stored on those cells, providing a long-term picture rather than a single moment in time.

     

    What Does the Analysis Represent?

    • Goal: To diagnose prediabetes and diabetes, and to monitor how well a person is managing their blood sugar over time.
    • Main Application: This is the “gold standard” for assessing long-term glucose control.
    • Biological Process: It reflects the glycation process. The higher the glucose in your blood, the more “sugar-coated” your hemoglobin becomes. Unlike a finger-prick test, it isn’t affected by what you ate for dinner last night or a morning workout.

    Recommendations for the Test (General)

    • Fasting: Not required. You can take this test at any time of day, regardless of when you last ate.
    • Stable Health: Recent heavy bleeding or a blood transfusion can make results inaccurate, as they change the age and type of your red blood cell population.
    • Material: Venous blood (whole blood).

    What Can Affect the Results?

    • Anemia: Conditions that change the lifespan of red blood cells (like iron deficiency or hemolytic anemia) can lead to falsely high or low A1c levels.
    • Hemoglobin Variants: Rare genetic traits (like Sickle Cell or Thalassemia) can interfere with some A1c testing methods.
    • Pregnancy: A1c levels may slightly drop during pregnancy or be less reliable due to increased red cell turnover.
    • Kidney/Liver Disease: Severe chronic illness can alter the accuracy of the glycation record.

    When to Take the Test?

    • Routine Screening: All adults over 45, or younger individuals with risk factors (overweight, family history).
    • Symptoms of High Sugar: Increased thirst, frequent urination, blurred vision, or unexplained fatigue.
    • Diabetes Management: Usually performed every 3 to 6 months to see if diet, exercise, or medications are working.

    How to Interpret the Results?

    Important: A physician must evaluate these results to diagnose diabetes or monitor long-term blood sugar control. 5.7% to 6.4%: Represents the prediabetes window where intervention is key. 6.5% or higher: Typically used by doctors as a diagnostic threshold for Diabetes Mellitus.

     

    Possible Further Investigations

    • Fasting Plasma Glucose: To see your blood sugar level at a single, controlled moment.
    • Oral Glucose Tolerance Test (OGTT): To see how your body handles a large “load” of sugar (common in pregnancy).
    • Estimated Average Glucose (eAG): Many labs convert the A1c percentage into a mg/dL number that looks like a standard glucose meter reading.

    When Does the Next Step Make Sense? 

    The next step is necessary if your result falls in the Prediabetes or Diabetes range. Because A1c represents a 3-month average, a high result isn’t a fluke; it means your blood sugar has been consistently elevated. Early intervention—often starting with just dietary changes and increased walking—can actually reverse prediabetes or significantly delay the progression of diabetes.

    👉 If necessary, you can discuss the results of the analysis with a specialist, such as an Endocrinologist (Doctors – TAMC)

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      Tel Aviv Medical Clinic

      Weizman st. 14, Tel Aviv, Israel

      972-7337-46844

      972-5233-73108

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