Glucose - Arterial on Labcorp's Arterial Blood Gas (ABG) Panel
The Glucose - Arterial marker on Labcorp's Arterial Blood Gas (ABG) Panel measures the concentration of glucose in arterial blood. Glucose is a primary energy source for the body's cells and is tightly regulated by hormones such as insulin and glucagon. Monitoring glucose levels is essential for assessing metabolic status and diagnosing conditions like diabetes mellitus and hypoglycemia.
Normal Reference Range
The normal reference range for arterial glucose levels varies by age:
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Neonates (<30 days): 40–90 mg/dL
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Infants (30 days–3 years): 60–100 mg/dL
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Children and adults (>3 years): 65–100 mg/dL
Critical values are:
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Neonates: <40 or >200 mg/dL
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Infants and older children/adults: <50 or >500 mg/dL
Clinical Significance
Abnormal glucose levels can indicate various health conditions:
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Elevated Levels (Hyperglycemia): May suggest diabetes mellitus, stress response, or endocrine disorders.
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Decreased Levels (Hypoglycemia): Can result from insulin overdose, adrenal insufficiency, or prolonged fasting.
Arterial glucose measurements are particularly useful in critical care settings for real-time monitoring of a patient's metabolic status.
Lab Results Explained and Tracked
What does it mean if your Glucose - Arterial result is too high?
Elevated levels of Glucose - Arterial (hyperglycemia) can indicate several conditions, primarily related to impaired glucose regulation. Some common causes include:
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Diabetes Mellitus: The most common cause of chronic hyperglycemia. In both Type 1 and Type 2 diabetes, the body either cannot produce enough insulin or cannot effectively use insulin, leading to high blood sugar levels.
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Stress Response: Conditions such as sepsis, surgery, or trauma can cause temporary spikes in blood glucose due to the body’s stress response, which increases the release of hormones like cortisol and adrenaline that raise blood sugar.
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Endocrine Disorders: Conditions like Cushing’s syndrome or acromegaly involve hormonal imbalances that can lead to elevated blood glucose levels, often due to increased production of cortisol or growth hormone.
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Pancreatic Disorders: Diseases such as pancreatitis, pancreatic cancer, or pancreatic insufficiency can impair the pancreas' ability to secrete insulin, leading to higher glucose levels.
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Medications: Certain medications, including steroids (e.g., prednisone), thiazide diuretics, and some antipsychotics, can induce hyperglycemia as a side effect by affecting insulin secretion or glucose metabolism.
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Hyperthyroidism: Overactive thyroid function can increase metabolic activity, which can result in elevated blood glucose levels.
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Gestational Diabetes: In pregnant women, especially in the second or third trimester, elevated glucose levels can be a sign of gestational diabetes, a form of diabetes that develops during pregnancy.
Persistently elevated glucose levels can lead to complications such as damage to blood vessels, nerves, kidneys, and the eyes, making proper management essential to avoid long-term health issues.
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