Blood test in Leiden.

Yes, Winkelhof takes walk-ins. There too you pick a one-hour arrival window in the Optimize app and confirm you are coming, so the lab expects you. The other locations draw at a time slot you schedule in the app.

No. You start online yourself, without a GP referral, and then pick a Leiden location and a time slot in the Optimize app.

You draw at a location run by SCAL or Atalmedial, but you schedule and pay through Optimize, without a referral, and your results come with explanations in the Optimize app. Have a referral from your GP? Then you make the appointment with the lab itself and the results go to your GP.

At 26 locations in and around the city: at De Singel, the Poortgebouw, the Leidse Hout, the main location on the Rooseveltstraat, the Alrijne hospital, the Merenwijk and the Stevenshof, and beyond that in Leiderdorp, Oegstgeest, Warmond, Valkenburg, Rijnsburg, Voorschoten, Voorhout, Hazerswoude-Rijndijk, Katwijk and Sassenheim. All addresses are on this page, sorted by distance.

Yes. In Oegstgeest you draw at Actea on the Piet Heinlaan, the Poelgeest practice, MC Oegstgeest or Rhijngeest, in Leiderdorp at the Florijn or at the Alrijne hospital on the Simon Smitweg. In the app you simply pick the address that suits you best; the lab and the results are the same everywhere.

Not automatically. You draw without a referral, so your GP need not be involved: your results come with explanations in the Optimize app, and you can always take them along to a consultation yourself.

Yes. Every draw is fasted: nothing to eat or drink from midnight, only water. Appointments are therefore in the morning, until 12:00, so you only postpone breakfast. The app tells you exactly how to prepare.

Usually within 24 hours of your appointment. As soon as SCAL is done, your results appear in the Optimize app, explained per value in plain language and translated into what it means for your lifestyle.