GLP-1 Baseline Panel
Your starting point before the first injection: blood sugar, cholesterol, pancreas, liver, kidneys, thyroid and nutrients in one measurement.
In Den Haag you can have blood drawn at 20 locations, 16 of them without an appointment according to the lab.
Kempstraat 230, Den Haag · 0.3 km from the centre
08:00 – 10:00 Tuesday Walk-in
Draw site of Star-SHL · hours per the lab
Hobbemaplein 8, Den Haag · 0.4 km from the centre
08:00 – 09:00 Monday, Wednesday and Friday Walk-in
Draw site of Star-SHL · hours per the lab
Ruijsdaelstraat 15, Den Haag · 0.6 km from the centre
09:30 – 11:30 on weekdays Walk-in
Draw site of Star-SHL · hours per the lab
Apeldoornselaan 265, Den Haag · 0.8 km from the centre
08:00 – 11:00 Monday, Tuesday, Wednesday and Friday Walk-in
Draw site of Star-SHL · hours per the lab
Asmansweg 6, Den Haag · 0.8 km from the centre
08:00 – 09:00 Monday, Wednesday and Friday Walk-in
Draw site of Star-SHL · hours per the lab
Vd Vennestraat 185, Den Haag · 0.9 km from the centre
08:00 – 10:45 on weekdays Walk-in
Draw site of Star-SHL · hours per the lab
Beeklaan 144, Den Haag · 1.0 km from the centre
08:00 – 09:30 Tuesday and Thursday Walk-in
Draw site of Star-SHL · hours per the lab
Varkenmarkt 19, Den Haag · 1.2 km from the centre
08:00 – 10:00 Monday, Tuesday and Thursday Walk-in
Draw site of Star-SHL · hours per the lab
Referral through ZorgDomein, barcode by e-mail within 1 business day. Bring a valid ID.
Map of the 20 draw sites in Den Haag
Order online and pick a location above. A doctor reviews your results.
Your starting point before the first injection: blood sugar, cholesterol, pancreas, liver, kidneys, thyroid and nutrients in one measurement.
The 3-month safety and progress check clinics do: pancreas, liver, kidneys, salts and your metabolic progress on GLP-1 medication.
The 6-month measurement: everything from the check-in plus insulin, ApoB and your nutrients — especially relevant if you have been eating much less for a while.
HDL, LDL, total cholesterol and triglycerides — your cholesterol often improves a lot while losing weight. This test makes it visible.
The compact blood sugar check: HbA1c and fasting glucose. Want insulin and safety values measured too? Choose the GLP-1 baseline panel instead.
Iron status (ferritin, iron, transferrin) and vitamin D — eating a lot less also means taking in fewer nutrients.
Choose your baseline test or follow-up, or build a custom test.
You'll receive an email from ZorgDomein with a barcode within 1 business day. Orders placed outside office hours are processed from the next business day.
Show the barcode on your phone and bring a valid ID. No BSN? Then bring your printed referral form instead. Done in under 15 minutes.
A BIG-registered physician reviews your results and writes a personal report. On your dashboard within a few business days.
Choose your baseline test or follow-up, or build a custom test.
You'll receive an email from ZorgDomein with a barcode within 1 business day. Orders placed outside office hours are processed from the next business day.
Show the barcode on your phone and bring a valid ID. No BSN? Then bring your printed referral form instead. Done in under 15 minutes.
A BIG-registered physician reviews your results and writes a personal report. On your dashboard within a few business days.
All addresses for a blood draw in Den Haag at a glance.
Closed
Next opening: opens at 08:30, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | - |
| Thursday | - |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens tomorrow 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | - |
| Thursday | Closed |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens tomorrow 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | Closed |
| Wednesday | - |
| Thursday | Closed |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:30, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | - |
| Thursday | - |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:30, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | - |
| Thursday | - |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens tomorrow 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | Closed |
| Tuesday | Closed |
| Wednesday | - |
| Thursday | Closed |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | - |
| Thursday | - |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | Closed |
| Thursday | - |
| Friday | Closed |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:30, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | Closed |
| Thursday | - |
| Friday | Closed |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens tomorrow 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | Closed |
| Wednesday | - |
| Thursday | Closed |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 09:30, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | - |
| Thursday | - |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | Closed |
| Tuesday | - |
| Wednesday | Closed |
| Thursday | - |
| Friday | Closed |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens tomorrow 10:45, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | Closed |
| Wednesday | - |
| Thursday | Closed |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | Closed |
| Tuesday | Closed |
| Wednesday | Closed |
| Thursday | - |
| Friday | Closed |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens Tuesday 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | Closed |
| Tuesday | - |
| Wednesday | Closed |
| Thursday | Closed |
| Friday | Closed |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | - |
| Thursday | - |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens tomorrow 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | Closed |
| Wednesday | - |
| Thursday | Closed |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens tomorrow 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | Closed |
| Wednesday | - |
| Thursday | Closed |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | - |
| Tuesday | - |
| Wednesday | - |
| Thursday | - |
| Friday | - |
| Saturday | Closed |
| Sunday | Closed |
Closed
Next opening: opens at 08:00, according to the lab's regular opening hours.
Opening hours
| Day | Hours |
|---|---|
| Monday | Closed |
| Tuesday | - |
| Wednesday | Closed |
| Thursday | - |
| Friday | Closed |
| Saturday | Closed |
| Sunday | Closed |
Location data: partner laboratories via the lab feed, updated 8 October 2026 00:00.
Coverage per venue is not available right now. At checkout you will see which venues can draw your test.
Ready to order a blood test? Order online and choose a location during checkout.
Upload it. We look up every determination and show you what we can and cannot run, before you pay.
Scan your test listChoose individual components, taken at a certified location in Den Haag.
HbA1c monitoring is increasingly important with age as diabetes risk rises. Regular testing supports early intervention and helps maintain metabolic health in later years.
Fasting glucose regulation can change with age. Regular monitoring supports diabetes prevention and metabolic stability for healthy ageing.
Insulin sensitivity naturally decreases with age. Monitoring fasting insulin supports early intervention and metabolic health maintenance in later years.
Amylase monitoring is important for seniors, as pancreatic function may change with age. Regular testing helps detect digestive health changes early.
Lipase monitoring is important for older adults, as pancreatic enzyme production may decrease with age, potentially affecting fat digestion and nutrient absorption. Regular testing helps identify age-related changes in pancreatic function early.
ALT is the liver value that moves most clearly with your weight. It is a protein that liver cells use to process nutrients; it leaks into your blood as soon as liver cells are damaged, so the number shows how much damage there is right now. For men up to 45 U/L is normal, for women up to 34 U/L. Anyone losing weight usually sees a mildly raised ALT fall within a few months, because the most common cause of such a rise, fat in the liver, is exactly the fat that goes first. That is why this is the most useful value to measure before a programme.
Your LDL cholesterol tells you how much cholesterol sits inside your LDL particles, the particles that can build up in your artery wall. If you lose weight, that value eventually falls, but almost never first and almost never in a straight line. That surprises many people. In the first weeks of a programme your LDL can even come out higher than at the start, while your triglycerides have already dropped sharply. Nothing has gone wrong: you are measuring a body mid-change rather than the end result. This page shows what moves in which phase, when to re-measure to see anything meaningful, what the 3.0 mmol/l target means for you, and why your result belongs next to your own starting value.
Triglyceride management is important for cardiovascular health as metabolic efficiency changes with age. Regular monitoring supports heart and metabolic health in later years.
Your ferritin value tells you how much iron you have in store, because ferritin is the protein that stores iron, but during a weight-loss programme it measures something else too. Excess weight involves low-grade inflammation, and ferritin rises in response as an acute-phase protein, so your starting value is often higher than your actual iron store justifies. As you lose weight that inflammation subsides and your ferritin falls with it, even if nothing about your iron changes. That makes a falling value during weight loss usually a good sign. It does mean, though, that a deficiency previously masked only becomes visible now.
Vitamin B12 is considered especially important for older adults, as absorption may decline with age. Low levels have been associated with cognitive changes and anaemia. Regular monitoring may help healthcare providers support healthy ageing.
Science-backed articles about blood values and health.
All phlebotomy points are operated by independent, certified laboratories. We partner with them to provide you with a reliable blood draw experience. These locations are not owned by SlimmerLab.
Have questions about your order, results, or the blood draw process? Please contact us directly, not the laboratory. We are happy to help.
Order your blood test online and choose a location near you during checkout.
Our team is happy to help. Ask your question and we'll respond as soon as possible.
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