Aidan: /* Interpretation */

2021-09-05T18:48:43Z

Interpretation

← Older revision		Revision as of 18:48, 5 September 2021
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	$$ Avg Glucose \approx 1.59 \times HbA1c - 2.59 $$		$$ Avg Glucose \approx 1.59 \times HbA1c - 2.59 $$
			{\| class="wikitable"

			!HbA1c (%)
	* Normal <5.7%
			!Interpretation
	* Elevated 5.7% to 6.4%
			\|-
	* Diabetes ≥6.5%
			\|<5.5
			\|normal
			\|-
			\|5.6 to 5.9
			\|at risk
			\|-
			\|6 to 6.4
			\|prediabetes
			\|-
			\|≥6.5
			\|diabetes
			\|}

	=== Falsely high ===		=== Falsely high ===

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2020-07-04T01:17:37Z

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== Interpretation ==

* Approximates 90-day random blood glucose

$$ Avg Glucose \approx 1.59 \times HbA1c - 2.59 $$

* Normal <5.7%
* Elevated 5.7% to 6.4%
* Diabetes ≥6.5%

=== Falsely high ===

* It can be elevated in people whose red blood cells have a longer lifespan
** '''Vitamin B12''' and '''iron deficiency'''
** Splenectomy
* Also laboratory artifact
** Aspirin
** Cigarette carboxyhemoglobin
** Hb S, G, D, C, and E
** Hypertriglyceridemia
** Hyperbilirubinemia
* Others
** Afro-Caribbeans (+0.4%)
** Chronic renal failure

=== Falsely low ===

* It can be decreased by anything that shortens the lifespan of red blood cells
** Hemolysis
** Blood loss
** Spherocytosis
** Thalassemia HbS
** Supplementation with erythropoietin
** Supplementation with iron or vitamin B12
* Also laboratory artifacts
** Sickle cell HbF
* Others
** Vitamin A or C supplementation
** HIV antiretrovials
** Chronic liver disease
** Chronic renal failure

== Alternatives ==

* Fructosamine
* Self-monitored capillary blood glucose

Hemoglobin A1c - Revision history

Aidan: /* Interpretation */

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