Electrolyte blood test with sodium, potassium and calcium
Comprehensive metabolic panel: electrolytes, kidney, liver, glucose, HbA1c, and protein.
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Included Markers
18 markersHbA1c (Glycated Hemoglobin), ALT (Alanine Aminotransferase), Calcium, ALP (Alkaline Phosphatase), AST (Aspartate Aminotransferase), Bilirubin (Total), Urea (BUN), Creatinine, eGFR (Estimated Glomerular Filtration Rate), Glucose (Fasting), Bicarbonate, Chloride, Sodium, Potassium, Albumin, Total Protein, Bilirubin (Direct), Bilirubin (Indirect)
Behind the scenes, your body keeps a finely tuned balance, from your salt levels to your kidneys and your liver. A complete metabolic panel looks at these everyday processes and can give you insight into how your metabolism is doing right now.
This panel brings together sixteen blood values that together may say something about your fluid and salt balance, your kidney and liver function and your blood sugar. That can give you a little more grip on signals that are otherwise hard to read.
Why this test?
Vague complaints like tiredness, thirst or a bloated feeling can have many causes. A broad metabolic panel looks at a number of basic systems in your body at once, so you do not have to guess where to start.
This panel combines your electrolytes with markers for your kidneys, your liver and your blood sugar. Together they can give an impression of how your metabolism and fluid balance are doing at this moment.
Who is this test for?
This panel can be useful if you want a broader view of your metabolic health, for example with ongoing tiredness, frequent urination or thirst, or simply if you are curious about your values.
It can also be a handy starting point if you want to check in on your salt balance or your kidney and liver function. You do not need a referral from your GP.
What is tested?
This panel measures sixteen values in your blood, spread across your salt balance, kidneys, liver, blood sugar and proteins:
- Sodium: an electrolyte that helps regulate your fluid balance.
- Potassium: involved in nerve and muscle function, including your heartbeat.
- Chloride: an electrolyte that, together with sodium, helps set your fluid balance.
- Bicarbonate: involved in the acid-base (pH) balance of your blood.
- Calcium: important for bones, muscles and nerves.
- Creatinine: a waste product that can say something about your kidney function.
- eGFR (Estimated Glomerular Filtration Rate): a calculated estimate of how well your kidneys filter.
- Urea (BUN): a waste product from protein metabolism that your kidneys excrete.
- ALT (Alanine Aminotransferase): a liver enzyme that can reflect the condition of your liver.
- AST (Aspartate Aminotransferase): an enzyme found in the liver and muscles, among other places.
- ALP (Alkaline Phosphatase): an enzyme linked to the liver and bones.
- Bilirubin (Total): a breakdown product of red blood cells that your liver processes.
- Glucose (Fasting): your blood sugar after a period of fasting.
- HbA1c (Glycated Hemoglobin): gives an impression of your average blood sugar over the past weeks.
- Albumin: a protein made by your liver.
- Total Protein: the total amount of protein in your blood.
What can this test tell you?
The results can give you an impression of how different systems in your body are working together right now. Your electrolytes say something about your fluid and salt balance, while creatinine, eGFR and urea can paint a picture of your kidney function.
The liver enzymes and bilirubin may reflect how your liver is doing, and glucose and HbA1c offer insight into your blood sugar. Individual values say little on their own; it is the whole picture, combined with your situation, that can take on meaning.
How is the sample collected?
This test requires a blood draw at a certified laboratory. In the Netherlands you can choose from 650+ sample points, so there is almost always a location near you.
After ordering, you pick a location and schedule a moment that suits you. The draw itself usually takes only a few minutes, and you do not need a referral.
When is this test useful?
A metabolic panel can be valuable at different moments, for example:
- when you feel persistently tired and want a broader view of your values
- with complaints like frequent thirst, frequent urination or a bloated feeling
- when you want to check in on your kidney and liver function
- when you like to follow your metabolic health periodically to stay informed
This panel does not replace a visit to your GP, but it can give you more context for what you feel.
What do the results mean?
Your result shows each value with a corresponding reference range and a short explanation. What counts as usual can vary by laboratory and from person to person.
A value that falls outside the range does not automatically mean something is wrong; it can also relate to your diet, fluid intake or the timing of the draw. The doctor helps you place your values in the right context.
What happens after the results?
Your results are usually in your Lunarahealth account within 2 working days of the blood draw, often the next day. Some markers take longer. Each value is shown clearly with a reference range and an explanation, so you understand what you see.
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
Usually yes. Because your glucose is affected by food, it is advisable not to eat for 8 to 12 hours beforehand and to drink only water. You receive the exact instructions with your order.
Electrolytes are minerals such as sodium, potassium, chloride and calcium that are dissolved in your blood. They play a role in your fluid balance and in the working of your nerves and muscles.
No, you can order this blood test online without a referral and choose your own sample point. For treatment decisions, discuss your results with your GP.
Your result is usually online within 2 working days of the blood draw, with a reference range and explanation for each value.
You pay €149,-. The blood draw is already included, so nothing is added.
No, a test you request yourself is not part of the basic Dutch insurance. You pay it yourself, and your deductible (eigen risico) stays untouched.
Count on one business day, a day longer for an order after 17:00 or at the weekend: by then the referral email has arrived, and you cannot go before it does. Some draw sites then take walk-ins and the rest work by appointment. Each location says which.
Your barcode from the ZorgDomein email and a valid ID. Showing the barcode on your phone is fine. Without a BSN you get no barcode; print the referral form from the link in the email instead.
Yes, unless your own doctor said otherwise. Some markers ask for extra preparation, such as no alcohol for 24 hours or no heavy training for 48 hours. You see this on the test and in the instructions after you order.
You show your barcode and your ID at the draw site, and then your blood is taken. Allow about a quarter of an hour.
Yes, a BIG-registered doctor assesses every result and explains your values in your account. If you want treatment, discuss the result with your GP.
In one of the independent, certified laboratories across the Netherlands that Lunarahealth works with. They also run the draw sites, which Lunarahealth does not own. Reference values can differ a little between labs.
No, your test bypasses your GP and does not end up in your medical record. Data goes to a healthcare provider only with your written consent, and it is never sold. Anonymous is not possible: a valid result needs your name, date of birth and ID.
What We Test
| No. | Biomarker | Unit |
|---|---|---|
| 01 | HbA1c (Glycated Hemoglobin) | mmol/mol |
| 02 | ALT (Alanine Aminotransferase) | u/l |
| 03 | Calcium | mmol/l |
| 04 | ALP (Alkaline Phosphatase) | u/l |
| 05 | AST (Aspartate Aminotransferase) | u/l |
| 06 | Bilirubin (Total) | umol/l |
| 07 | Urea (BUN) | mmol/l |
| 08 | Creatinine | umol/l |
| 09 | eGFR (Estimated Glomerular Filtration Rate) | ml/min/1,73m² |
| 10 | Glucose (Fasting) | mmol/l |
| 11 | Bicarbonate | mmol/l |
| 12 | Chloride | mmol/l |
| 13 | Sodium | mmol/l |
| 14 | Potassium | mmol/l |
| 15 | Albumin | g/l |
| 16 | Total Protein | g/l |
| 17 | Bilirubin (Direct) | umol/l |
| 18 | Bilirubin (Indirect) | umol/l |
| Your results are usually in your Lunarahealth account within 2 working days of the blood draw. The laboratory states a longer turnaround for Bicarbonate, Bilirubin (Total), Calcium, Chloride, Total Protein and Urea (BUN). | ||
Preparation
-
No hard training beforehand
RequiredNo heavy training, long endurance sessions or anything that leaves you out of breath in the 48 hours before the draw. Normal walking is fine.
-
Come fasting
RequiredFrom 22:00 the evening before, eat and drink nothing except water. That is at least 8 hours. Skip coffee, tea, chewing gum and smoking that morning. Plan the draw before 10:00.
- Water is always fine. Drink as usual beforehand, it makes the draw easier.
- Take your usual medication, unless your own doctor told you otherwise.
Extend this panel
Same draw, no second appointment.
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