Order a complete metabolic panel and check your metabolism
Comprehensive metabolic panel: electrolytes, kidney, liver, glucose, HbA1c, and protein.
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Included Markers
16 markersA metabolism test gives you insight, in one go, into how your body manages its internal balance: from electrolytes and kidney function to liver, blood sugar and protein. This complete metabolic panel bundles 16 blood values into a single draw.
You order online, need no referral and choose a certified sample point yourself. Your results are available online within a few working days, including an assessment by a BIG-registered doctor.
Why this test?
Your body constantly maintains a fine balance between salts, sugars, proteins and waste products. Shifts in these can develop gradually and often cause no noticeable symptoms in the early stages.
A metabolism test can bring changes in your kidney filtration, liver processing, blood sugar regulation or electrolytes into view before you notice them. For busy professionals, it is an efficient way to get preventive insight into your metabolism.
Who is this test for?
This panel may suit people who:
- want a broad view of their metabolic health and organ function
- want to check their kidney or liver function
- would like to know more about their blood sugar regulation
- take medications that may affect electrolytes or organ function
- want to record a large blood test as a baseline
Would you like to measure more specifically? A doctor can advise which values are relevant for you.
What is tested?
This complete metabolic panel measures 16 blood values across five themes:
- Electrolytes and minerals: Sodium, Potassium, Chloride, Bicarbonate and Calcium, involved in fluid balance, acid-base balance and nerve and muscle function.
- Kidney function: Urea (BUN), Creatinine and eGFR, which together reflect your kidneys' filtration capacity.
- Liver function: ALT, AST, ALP (Alkaline Phosphatase), Bilirubin (Total) and Albumin, enzymes and proteins that may reflect the activity and processing of your liver.
- Blood sugar: Glucose (Fasting) and HbA1c, for your current blood sugar and the average over the past 2 to 3 months.
- Protein: Total Protein, a combined measure of albumin and globulin in your blood.
What can this test tell you?
The values in this panel touch several interconnected systems. Creatinine and eGFR can say something about how well your kidneys filter, while urea adds context about your protein metabolism. Liver enzymes such as ALT and AST can show how active your liver cells are, and your electrolytes give an impression of your fluid and hydration balance.
Glucose and HbA1c together sketch both your blood sugar at the moment of measuring and the average over a longer period. A metabolic test is most useful when you view the values as a whole rather than in isolation. The result is not a diagnosis, but a set of data you can discuss with a doctor.
How is the sample collected?
For this test, blood is drawn at a certified sample point (afnamepunt). In the Netherlands you can choose from 700+ locations, which you select yourself after ordering, at a time that suits you.
Because this is a blood test without a referral, you do not need to see your GP first. A trained phlebotomist draws your blood, which usually takes only a few minutes.
When is this test useful?
A metabolism test can be useful when:
- you want a broad overview of your metabolic and organ function
- you take medications that may affect your liver, kidneys or electrolytes
- you have a family history of kidney or liver conditions or diabetes
- you want to track how your body responds to changes in diet or lifestyle
What do the results mean?
Each value appears alongside a reference range. Values within that range generally suggest normal function for that parameter. When a value falls outside it, that may be a point to discuss with a healthcare provider. An elevated creatinine with a reduced eGFR may, for example, fit altered kidney function, while raised liver enzymes may point to more liver cell activity.
Individual values can fluctuate due to hydration, diet and timing. A doctor can interpret your result in the context of your overall health picture.
Preparation
For reliable glucose values you need to fast for 8 to 12 hours before your appointment. Drinking water during that period is fine. A morning draw usually gives the most consistent readings.
Avoid strenuous exercise in the 24 hours before the test, and check with your doctor if you use medications that may affect your values.
What happens after the results?
Your results are usually available online within a few working days. You see your measured values, their reference ranges and a plain-language explanation for each marker. Values outside the expected range are clearly indicated.
Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Frequently Asked Questions
From order to report in 4 steps
A blood test without referral means no waiting. Just order and go.
Choose your blood test
Browse our blood tests and pick what you want checked. Compare markers and prices, or build a custom test.
Receive your lab referral
On the same business day you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed the next business day.
Get tested at a lab near you
Show the barcode on your phone and bring a valid ID. Done in under 15 minutes.
Receive your report from the doctor
A BIG-registered physician reviews your results and writes a personal report. On your dashboard within a few business days.
Choose your blood test
Browse our blood tests and pick what you want checked. Compare markers and prices, or build a custom test.
Receive your lab referral
On the same business day you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed the next business day.
Get tested at a lab near you
Show the barcode on your phone and bring a valid ID. Done in under 15 minutes.
Receive your report from the doctor
A BIG-registered physician reviews your results and writes a personal report. On your dashboard within a few business days.
Always a location near you
With 700+ certified phlebotomy points across the Netherlands.
What We Test
This health panel includes 16 biomarkers to give you a comprehensive picture of your health.
Bicarbonate is an electrolyte that helps maintain the body's acid-base balance. It acts as a buffer in the blood, neutralising excess acids and helping to keep your pH within a healthy range.
Learn moreCalcium is the most abundant mineral in the body, essential for strong bones and teeth, muscle contraction, nerve signalling, and blood clotting. Most calcium is stored in bones and teeth, with a small amount circulating in the blood.
Learn moreChloride is an essential electrolyte that helps maintain fluid balance, blood pressure, and the body's acid-base equilibrium. It works closely with sodium and potassium to regulate these vital functions.
Learn morePotassium is an essential electrolyte and mineral that helps regulate heartbeat, muscle contractions, nerve signals, and fluid balance. It is one of the most important minerals for cardiovascular health.
Learn moreSodium is a vital electrolyte that regulates fluid balance, blood pressure, and nerve and muscle function. It is the primary cation in extracellular fluid and is closely regulated by the kidneys.
Learn moreFasting glucose measures the level of sugar (glucose) in your blood after an overnight fast. It is one of the primary tests used to screen for and monitor diabetes and pre-diabetes.
Learn moreHbA1c (glycated haemoglobin) reflects your average blood sugar levels over the past 2-3 months. It is the gold standard for long-term blood sugar monitoring and diabetes management.
Learn moreAlbumin is the most abundant protein in the blood, produced by the liver. It maintains fluid balance, transports hormones and nutrients, and serves as an indicator of liver and kidney function.
Learn moreAlkaline Phosphatase (ALP) is an enzyme found in the liver, bones, kidneys, and digestive system. ALP levels can help evaluate liver health, bone disorders, and bile duct function.
Learn moreALT (alanine aminotransferase) is a liver enzyme that serves as a key indicator of liver health. Elevated levels may suggest liver cell damage and can be associated with various liver conditions.
Learn moreAST (aspartate aminotransferase) is an enzyme found in the liver, heart, and muscle cells. Elevated levels may indicate liver damage, but because AST is present in multiple tissues, results are best interpreted alongside other liver markers such as ALT.
Learn moreTotal bilirubin measures the combined amount of direct and indirect bilirubin in your blood. Bilirubin is a waste product formed during the normal breakdown of red blood cells, and elevated levels may indicate liver disease, bile duct problems, or increased red blood cell destruction.
Learn moreBUN (blood urea nitrogen) measures the amount of urea nitrogen in your blood, a waste product formed when the body breaks down protein. It is primarily used to evaluate kidney function and can be influenced by diet, hydration status, and liver health.
Learn moreCreatinine is a waste product generated by normal muscle metabolism that is filtered out of the blood by the kidneys. It is widely regarded as the gold standard marker for evaluating kidney function, as consistent production makes it a reliable indicator of filtration efficiency.
Learn moreeGFR (estimated glomerular filtration rate) is a calculated measure of how effectively your kidneys filter waste from the blood. It is the gold standard for diagnosing and staging chronic kidney disease and is derived from blood creatinine or cystatin C levels along with demographic factors.
Learn moreTotal protein measures the combined amount of albumin and globulins in your blood. These proteins play essential roles in maintaining fluid balance, fighting infections, transporting substances, and supporting tissue repair.
Learn moreBicarbonate
MineralsBicarbonate is an electrolyte that helps maintain the body's acid-base balance. It acts as a buffer in the blood, neutralising excess acids and helping to keep your pH within a healthy range.
Proper bicarbonate levels are essential for maintaining blood pH. Imbalances may indicate respiratory or metabolic conditions and can affect organ function. Consult your healthcare provider for interpretation of your results.
Calcium
MineralsCalcium is the most abundant mineral in the body, essential for strong bones and teeth, muscle contraction, nerve signalling, and blood clotting. Most calcium is stored in bones and teeth, with a small amount circulating in the blood.
Calcium balance is critical for bone health, heart function, and muscle contraction. Abnormal levels may be associated with bone disorders, parathyroid conditions, or kidney problems. Consult your healthcare provider for personalised advice.
Chloride
MineralsChloride is an essential electrolyte that helps maintain fluid balance, blood pressure, and the body's acid-base equilibrium. It works closely with sodium and potassium to regulate these vital functions.
Chloride imbalances can indicate dehydration, kidney disease, or acid-base disturbances. Maintaining proper chloride levels is important for overall metabolic health. Consult your healthcare provider for result interpretation.
Potassium
MineralsPotassium is an essential electrolyte and mineral that helps regulate heartbeat, muscle contractions, nerve signals, and fluid balance. It is one of the most important minerals for cardiovascular health.
Potassium is critical for maintaining heart rhythm, blood pressure regulation, and proper muscle function. Both low and high levels can be dangerous and may require medical attention. Consult your healthcare provider for interpretation.
Sodium
MineralsSodium is a vital electrolyte that regulates fluid balance, blood pressure, and nerve and muscle function. It is the primary cation in extracellular fluid and is closely regulated by the kidneys.
Sodium balance is essential for proper nerve transmission, muscle contraction, and blood pressure regulation. Significant imbalances can affect brain function and require medical attention. Consult your healthcare provider for guidance.
Glucose (Fasting)
MetabolicFasting glucose measures the level of sugar (glucose) in your blood after an overnight fast. It is one of the primary tests used to screen for and monitor diabetes and pre-diabetes.
Fasting glucose is a cornerstone of metabolic health assessment. Elevated levels may indicate pre-diabetes or diabetes, while very low levels can also be clinically significant. Consult your healthcare provider for interpretation.
HbA1c (Glycated Hemoglobin)
MetabolicHbA1c (glycated haemoglobin) reflects your average blood sugar levels over the past 2-3 months. It is the gold standard for long-term blood sugar monitoring and diabetes management.
HbA1c provides a long-term view of blood sugar control, unlike fasting glucose which reflects a single point in time. It is essential for diabetes diagnosis and management. Consult your healthcare provider.
Albumin
LiverAlbumin is the most abundant protein in the blood, produced by the liver. It maintains fluid balance, transports hormones and nutrients, and serves as an indicator of liver and kidney function.
Albumin is important for maintaining blood volume, transporting substances, and reflecting overall health status. Low levels may indicate liver disease, kidney disease, or malnutrition. Consult your healthcare provider.
ALP (Alkaline Phosphatase)
LiverAlkaline Phosphatase (ALP) is an enzyme found in the liver, bones, kidneys, and digestive system. ALP levels can help evaluate liver health, bone disorders, and bile duct function.
ALP is a useful screening marker for liver and bone conditions. Elevated levels may indicate bile duct obstruction, liver disease, or bone disorders. Consult your healthcare provider for interpretation.
ALT (Alanine Aminotransferase)
LiverALT (alanine aminotransferase) is a liver enzyme that serves as a key indicator of liver health. Elevated levels may suggest liver cell damage and can be associated with various liver conditions.
ALT levels provide important insight into liver function. Elevated levels may indicate conditions such as hepatitis, fatty liver disease, or medication-related liver damage. Early detection of elevated ALT can help identify liver problems before symptoms develop, allowing for timely intervention and lifestyle modifications.
AST (Aspartate Aminotransferase)
LiverAST (aspartate aminotransferase) is an enzyme found in the liver, heart, and muscle cells. Elevated levels may indicate liver damage, but because AST is present in multiple tissues, results are best interpreted alongside other liver markers such as ALT.
AST levels provide important information about the health of your liver, heart, and muscles. Elevated levels may be associated with conditions such as hepatitis, cirrhosis, heart attack, or muscle injury. When evaluated alongside ALT, the AST:ALT ratio can help your healthcare provider identify the underlying cause of liver enzyme elevation. An AST:ALT ratio greater than 2:1, for instance, may suggest alcohol-related liver damage.
Bilirubin (Total)
LiverTotal bilirubin measures the combined amount of direct and indirect bilirubin in your blood. Bilirubin is a waste product formed during the normal breakdown of red blood cells, and elevated levels may indicate liver disease, bile duct problems, or increased red blood cell destruction.
Total bilirubin is a fundamental marker for assessing liver function and diagnosing the cause of jaundice. By comparing total bilirubin with direct bilirubin, healthcare providers can determine whether elevation is due to liver disease, bile duct obstruction, or haemolysis. Mild elevations may occur in common and generally harmless conditions such as Gilbert syndrome, which affects approximately 5-10% of the population. However, significant elevations warrant further investigation to rule out serious underlying conditions.
Urea (BUN)
KidneyBUN (blood urea nitrogen) measures the amount of urea nitrogen in your blood, a waste product formed when the body breaks down protein. It is primarily used to evaluate kidney function and can be influenced by diet, hydration status, and liver health.
BUN is a valuable marker for assessing how effectively your kidneys are filtering waste from your blood. Elevated levels may indicate that the kidneys are not functioning optimally, which can be associated with dehydration, kidney disease, or other underlying conditions. Monitoring BUN alongside other kidney markers such as creatinine and eGFR provides a more comprehensive picture of renal health and helps detect potential problems early.
Creatinine
KidneyCreatinine is a waste product generated by normal muscle metabolism that is filtered out of the blood by the kidneys. It is widely regarded as the gold standard marker for evaluating kidney function, as consistent production makes it a reliable indicator of filtration efficiency.
Creatinine is central to assessing kidney health. It is used to calculate the estimated glomerular filtration rate (eGFR), which is the primary measure for staging chronic kidney disease. Early detection of rising creatinine levels can prompt timely intervention, helping to slow the progression of kidney damage. Monitoring creatinine is also important for adjusting medication dosages, as many drugs are cleared by the kidneys.
eGFR (Estimated Glomerular Filtration Rate)
KidneyeGFR (estimated glomerular filtration rate) is a calculated measure of how effectively your kidneys filter waste from the blood. It is the gold standard for diagnosing and staging chronic kidney disease and is derived from blood creatinine or cystatin C levels along with demographic factors.
eGFR is the most important single measure for assessing overall kidney function. It is used internationally to diagnose chronic kidney disease, determine its stage, and guide treatment decisions. Regular eGFR monitoring allows early detection of kidney function decline, often before symptoms appear. This is critical because early intervention can significantly slow the progression of kidney disease and reduce the risk of complications such as cardiovascular disease.
Total Protein
OtherTotal protein measures the combined amount of albumin and globulins in your blood. These proteins play essential roles in maintaining fluid balance, fighting infections, transporting substances, and supporting tissue repair.
Total protein gives a broad first impression of your nutrition, liver function, kidney function and immune activity, because all of these influence how much protein circulates in your blood. A low total protein can fit with a diet low in protein, a liver that makes less albumin, a kidney that loses protein into the urine, or a gut that absorbs less. A high total protein is less common and can accompany dehydration or long-standing inflammation, where the body produces extra globulins. Because the value is a sum, it rarely gives a diagnosis on its own. It mainly tells your doctor whether the individual protein fractions are worth investigating further.
Related biomarkers
Biomarkers often explored alongside this test for a fuller picture.
Amitriptyline
Amitriptyline monitoring is part of a comprehensive approach to managing your prescribed medication. Tracking blood levels helps your healthcare team ensure your treatment plan is both safe and effective.
Amylase
Amylase testing provides insight into pancreatic and digestive health. Regular monitoring supports early detection of pancreatic conditions.
Bilirubin (Direct)
Direct bilirubin testing provides insight into your liver's ability to process and excrete waste products. Regular monitoring supports early detection of bile duct or liver conditions as part of proactive health management.
C-Peptide
C-Peptide provides early insight into pancreatic function and insulin resistance. Proactive testing supports early detection of metabolic changes before diabetes develops.
Carbamazepine
Carbamazepine monitoring is an important part of managing your prescribed anticonvulsant therapy. Regular blood level checks support your healthcare team in maintaining effective and safe treatment.
Carnitine Differentiation
Carnitine differentiation provides insight into your body's fatty acid metabolism as part of a comprehensive health assessment. Understanding your carnitine profile can help identify energy metabolism concerns early.
Related Health Panels
Discover more panels for a comprehensive health picture.
HbA1c Test
Measure your HbA1c, your average blood sugar over the past weeks. No referral needed.
Insulin Resistance (HOMA-IR)
A focused look at insulin resistance from fasting glucose and insulin, with your HOMA-IR score.
Liver Function
Liver Function Test (LFT).
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