Blood collection: The device painlessly and passively collects a small sample of blood without the need for traditional needles or finger pricks. This typically takes around 5 minutes.

Following your doctor’s instructions is the most important part of preparing for a blood test. Other tips include sleeping well, staying hydrated, and avoiding certain foods and drinks. Learn more.

Before a blood test, the GP or health-care provider will give you specific instructions. These may include fasting for up to 12 hours or temporarily discontinuing certain medications.