Base Excess (ECF) - Arterial on Labcorp's Arterial Blood Gas (ABG) Panel
The Base Excess (ECF) - Arterial marker on Labcorp's Arterial Blood Gas (ABG) Panel quantifies the amount of acid or base required to restore a liter of arterial blood to a normal pH of 7.40 at a PaCO2 of 40 mmHg and a temperature of 37C. This value reflects the metabolic component of acid-base balance, independent of respiratory influences.
Clinical Significance
Positive Base Excess: Indicates metabolic alkalosis, where there is an excess of base or a deficit of acid in the blood.
Negative Base Excess: Suggests metabolic acidosis, characterized by an excess of acid or a loss of base.
Base Excess (ECF) is particularly useful in assessing the severity of metabolic disturbances and guiding therapeutic interventions, such as the administration of bicarbonate in cases of significant acidosis.
Interpretation Considerations
While Base Excess (ECF) provides valuable information about the metabolic component of acid-base status, it should be interpreted alongside other ABG parameters, such as pH, PaCO2, and bicarbonate levels, to obtain a comprehensive understanding of the patient's acid-base balance. Additionally, clinical context and other laboratory findings are essential for accurate diagnosis and management.
Import lab results from multiple providers, track changes over time, customize your reference ranges, and get clear explanations for each result. Everything is stored securely, exportable in one organized file, and shareable with your doctor—or anyone you choose.
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Decreased levels of Base Excess (ECF) - Arterial (indicating a negative base excess) are typically associated with metabolic acidosis. This condition occurs when there is an accumulation of acid in the body or a loss of base (bicarbonate), leading to a disruption in the normal acid-base balance. Some common causes of decreased Base Excess include:
Diabetic Ketoacidosis (DKA): In this condition, excessive ketone production due to insulin deficiency leads to the accumulation of acidic substances in the blood, causing a negative base excess.
Lactic Acidosis: This results from the buildup of lactic acid in the blood, often due to severe infections (sepsis), shock, or prolonged hypoxia (lack of oxygen), leading to a decrease in bicarbonate levels.
Chronic Kidney Disease: The kidneys' impaired ability to excrete acid or retain bicarbonate can lead to metabolic acidosis and a decreased base excess.
Diarrhea: Severe or prolonged diarrhea can cause a loss of bicarbonate through the gastrointestinal tract, resulting in metabolic acidosis and negative base excess.
Starvation or Malnutrition: Inadequate food intake leads to the breakdown of fat for energy, producing acidic ketones that decrease the base excess.
Toxic Ingestion: The ingestion of toxins like methanol, ethylene glycol, or salicylates (aspirin) can result in metabolic acidosis, lowering the base excess.
A decreased Base Excess value is indicative of an acidotic state, and further evaluation is needed to determine the underlying cause, guiding appropriate treatment to correct the acid-base imbalance.
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Easily upload lab results from any provider, whether it's a hospital, independent lab, or home testing service. We support PDFs, scanned documents, and JPEGs from patient portals. No need to log in to multiple platforms — everything is centralized in one secure space.
Easily upload lab results from any provider — we support PDFs, scans, and images. Keep all your reports organized in one secure place.
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Every lab result is automatically organized on a chronological timeline, giving you a complete picture of your health journey.
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Whether it's a blood test, GI panel, urinalysis, or something else, lab reports measure numerous biomarkers that reveal what's happening inside your body. Our extensive database covers over 10,000 biomarkers, providing clear, simple explanations of what each result means and how you can take action—no matter your membership level. Say goodbye to confusion and get the insights you need to better understand your health.
Our database covers over 10,000 biomarkers with clear, simple explanations—so you can finally understand your results and what to do next.
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Enter Your Lab Reports — Always Free
If you'd like to handle inputting your health data into your account, you can do so with our easy-to-use data entry forms. Our user-friendly form is designed to guide you through the quick and easy submission process, making it simple to keep track of your health metrics. This is available to both Complete plan and Unlimited plan members.
Our user-friendly form guides you through a quick, simple submission process, making it easy to enter your health metrics.
Add your results anytime with our easy entry form. It's quick, guided, and helps you stay organized — free for all members.
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View your lab data through easy-to-read graphs and tables. Quickly spot patterns, track changes, and compare results across different dates — all without digging through multiple reports. You can also select and compare graphs of specific biomarkers side-by-side to better understand how they relate and change over time.
See your lab reports in clear graphs and tables. Spot patterns, track changes, and compare results over time — all in one place.
Export Your Complete Lab History in a Single File
Export Your Complete Lab History
After collecting lab results from different providers, you can download your entire history combined into a single file. Choose from PDF, Excel, or CSV formats to easily review, share, or get a second opinion—no more juggling multiple reports.
After collecting lab results from different providers, you can download your entire history combined into a single file.
Comprehensive Data Entry Service for Your Reports
Data Entry Service for Your Reports
Our inclusive service handles the data entry for your lab reports. Just submit your information and we'll take care of the rest. Complete plan members receive one report entered for free, then $15 per report after that. Unlimited plan members receive ten report entries for free, then $15 per report after that.
Our inclusive service handles the data entry for your lab reports. Just submit your information and we'll take care of the rest.
Securely Share With Anyone You Trust
Whether you're working with a doctor, nutritionist, caregiver, or wellness coach, you can securely share your complete lab history by sending an invite link to anyone you trust. You have full control over who sees your information and for how long, ensuring your privacy and peace of mind at every step.
Share your full lab history with your doctor, nutritionist, or coach using a secure invite link.
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There are two ways to add your test reports to your Healthmatters account. One option is to input the data using the data entry forms. The other method is to utilize our "Data entry service."
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Optimal Result:
-2.5 - 2.5 mmol/L.