Tests such as fasting blood sugar and the lipid profile measure values that rise after a meal. Preparing correctly makes sure your report reflects your true health – and saves you a repeat visit.

How long should I fast?

Most fasting tests need 8 to 12 hours without food. A lipid profile is best done after 10–12 hours. Booking an early-morning slot means most of the fast happens while you sleep.

Do’s

• Drink plain water – it keeps you hydrated and makes the blood draw easier.
• Take your regular medicines unless your doctor has told you otherwise, and tell our staff what you take.
• Wear a loose, short-sleeved top.
• Carry your doctor’s prescription and any previous reports.

Don’ts

• No tea, coffee, milk, juice or chewing gum during the fasting period.
• Avoid alcohol for 24 hours before the test.
• Avoid heavy exercise on the morning of the test.
• Do not smoke before the test.

Diabetic? Ask your doctor how to adjust insulin or sugar-lowering tablets while fasting, and carry a snack to eat right after your sample is taken.