Blood Work Basics: What to Know Before Your Draw

You’re on track for great health this year: you’ve got your workout plan in place, you’re munching on those five fruits and veggies per day, and you’ve just made an appointment for your annual physical exam. Next up on your list: blood work.

Getting a needle stuck in your arm can be quite a drain (bad pun intended), so it’s best to come prepared for the smoothest possible draw. Here are some basic facts about blood tests:

One question patients often ask is, “Can I just get the regular blood work?” It usually surprises them to hear that a “standard set” of tests doesn’t exist. Every patient is different, which means that there are different kinds of tests that are appropriate for each individual, depending on their risk factors, family history, and lifestyle. It’s best to chat with your primary care provider to determine which tests are right for you. It will save you from unnecessary discomfort and it will save you money.

Many tests do not require fasting, but lipid panels (also known as cholesterol tests), glucose testing, and stool tests are a few that do. If your provider orders blood work during a visit, be sure to ask your provider if you need to fast beforehand.

Fasting means that, with the exception of water, you refrain from eating or drinking for a minimum of 8 hours (10 to 12 hours is preferable) prior to the draw. This means no coffee or tea, so save that morning trip to the café for after your draw. Taking your vitamins or medications is OK, though.

Drinking water is highly encouraged before a blood draw. Being well-hydrated means your veins are full and easier for the phlebotomist (the person who draws your blood) to find. In essence, being well-hydrated could mean a quicker, less painful draw for you!

For more questions about labs and blood work, email your primary care physician.

Lauren Pollini is an administrative assistant for One Medical Group. You can find her at our 489 5th Avenue office in Manhattan.