top of page
Blood Test

Prepare For Your Blood Test

Please wear comfortable clothing and let your clinician know if you need anything.


Why do I need to fast?

Your test results may be influenced by what you eat. For instance, consuming sugary foods can temporarily elevate your blood sugar levels. Fasting before the test provides a baseline result that allows for consistent comparisons over time.


How do I fast?

Before your blood test, avoid eating or drinking anything (except water) for 12 hours, usually starting from 8 p.m. the night before. You can drink water, but skip juice, tea, or coffee. Also, refrain from smoking, chewing gum, or exercising, as these activities can affect the test results by stimulating your digestive system. Once the blood is collected, feel free to return to your regular diet."

Which blood tests need fasting?

The blood test that need fasting to provide an accurate result are cholesterol and glucose tests. If you have selected a blood test that includes these then please fast


Should I take medication?

Absolutely, continue taking any prescribed medications unless your doctor advises otherwise.

What medications can affect blood tests?

Beta-blockers such as propranolol can reduce HDL (good) cholesterol and raise triglycerides.

Steroids such as prednisolone can raise HDL (good), LHL (bad) cholesterol, and triglycerides.

Herbal remedies, vitamins, and supplements can affect several blood tests especially your liver function.


Nervous about needles

Up to 1 in 4 adults are nervous about needles.

Tell the clinician taking your bloods. They will reassure you and make sure you are comfortable.

Take someone to hold your hand while undergoing the procedure.

Keep yourself distracted such as listening to music.

Breathing techniques can help with keeping your nerves in control.

Feeling faint

Feeling faint is not uncommon. If you feel faint please tell your clinician. they will make you comfortable and set you up in a safe place in case you do faint.

This can be worse when you are nervous of needles. Focus on something else during the procedure such as an object in the room and only think about that one thing.

Ensuring a smooth procedure

Drink water to keep hydrated before your test but ensure you follow the guidance for fasting if required.

Wear a warm jumper to help your veins become more visible.

Contact us

If you have any concerns or specific requests please let us know

bottom of page