How to Prepare for a Blood Test: Tips from La Crosse Experts

Dec 23, 2025

Preparing for a blood test can sometimes feel daunting, but with the right guidance, it can be a straightforward process. Whether it's your first time or you've had many, knowing how to prepare can make the experience smoother and more efficient. Here are some expert tips from La Crosse to help you get ready for your next blood test.

Understand the Purpose of the Test

Before undergoing any medical procedure, it's essential to understand why it's being done. Blood tests can serve various purposes, such as diagnosing diseases, checking the function of organs, or monitoring health conditions. Knowing the reason for your test can help you feel more comfortable and informed.

Consult with Your Doctor

Talk to your doctor about what the test involves and any specific preparations you need to make. Some tests may require fasting, while others might not. Understanding these details can help you adhere to any necessary guidelines.

blood test discussion

Follow Fasting Instructions

Many blood tests require fasting for accurate results. This means avoiding food and drinks, except water, for a specified period before the test. Typically, fasting lasts between 8 to 12 hours. Make sure to follow your doctor's instructions carefully to ensure accurate results.

Stay Hydrated

Drinking plenty of water before your blood test is crucial. It helps keep your veins more accessible, making the blood draw easier and more comfortable. However, be sure to avoid any drinks that are not allowed if you're fasting.

drinking water

Manage Medication and Supplements

If you're taking any medications or supplements, consult with your healthcare provider about whether you should continue taking them before your test. Some substances can affect the results, so it's essential to follow your doctor's advice.

Dress Comfortably

Wearing loose-fitting clothing, especially around the arms, can make the process more comfortable. Choose a shirt with sleeves that are easy to roll up, allowing easy access for the technician drawing your blood.

comfortable clothing

Relax and Stay Calm

Feeling anxious about a blood test is normal, but staying relaxed can make a significant difference. Practice deep breathing techniques or distraction methods such as listening to music or reading while waiting for your turn.

Plan Your Day Accordingly

After a blood test, some people may feel lightheaded or tired. It's a good idea to plan a calm day, avoiding any strenuous activities immediately after the test. Consider taking a small snack if fasting is required, to help restore your energy levels afterward.

relaxing post test

By following these expert tips from La Crosse, you can ensure that your blood test experience is as stress-free and efficient as possible. Remember, being well-prepared not only helps you feel more at ease but also contributes to obtaining accurate results, providing valuable insights into your health.