Drinking 2 liters of water before a blood test

In some cases, you may need to drink more than 2 liters of water before a blood test. Your doctor will tell you how much water you need to drink in order to have a good blood test.

If you are dehydrated, your doctor will tell you how much water you should drink to avoid dehydration.

Other causes of a negative blood test result

Other reasons for a negative blood test result may include a variety of conditions. These include:

  • Anemia. Some disorders can cause iron to be low in the blood. This can cause a false negative result in the iron test.
  • Liver disease. When the liver is injured, it can release bilirubin into the blood. This can cause a false negative result in the bilirubin test.
  • Kidney disease. If the kidneys are damaged, there may not be enough blood flow to the intestines. This can cause a false negative in the blood urea nitrogen (BUN) test.
  • High potassium levels. This can cause a false negative result in the potassium test.
  • Low thyroid levels. Hypothyroidism can cause a false negative result in the thyroid-stimulating hormone (TSH) test.
  • Low sodium levels. This can cause a false negative result in the sodium test.
  • Low glucose levels. This can cause a false negative result in the glucose test.
  • Low white blood cell count. This can cause a false negative result in the white blood cell count (WBC) test.
  • Low blood pressure. This can cause a false negative result in your blood pressure (BP) test.
  • Low blood calcium levels. This can cause a false negative result in the blood calcium test.
  • Low sodium chloride levels. This can cause a false negative result in the sodium chloride test.
  • Low platelet count. This can cause a false negative result in the platelet count (PLT) test.
  • High uric acid levels. This can cause a false negative result in the uric acid test.

What should I do if I have a negative blood test result?

If you have a negative blood test result, you may want to ask your doctor what you should do next.

If you are concerned about your blood test results, talk with your doctor. They can help you understand what the result means.

You may want to do additional tests to figure out what’s going on in your body to explain your results.

Blood tests are only one part of your regular health care. You may also want to talk to your doctor about other diagnostic tests.

It’s a good idea to talk to your doctor about any concerns you have about your blood test results. They can help you understand what the results mean.

When should you call my office?

If you have a concern about your blood test results, or want to talk to your doctor about your results, contact our office.

If you are having a medical emergency, call 911.

What kind of office is this?

Our office is located in a large shopping center on the southwest side of Indianapolis, Indiana. We are in a central location that can easily be reached by car and bus.

How did I do on my last visit?

On your last visit, how was the experience with the receptionist? Did you have to wait a long time?

How was the experience with the doctor? Did you feel well taken care of?

If you had any trouble during your visit, how was the experience?

If you have any other questions or concerns, do not hesitate to call our office.

How can I get ahold of you?

Our office phone number is (317) 7332083. Our fax number is (317) 7332089.

Please let us know if you have any other questions or concerns.

Your privacy is important to us. Our office will take reasonable steps to protect your personal information. We are committed to doing our best to protect your privacy.

How can I get my test results?

If you have any questions, contact our office. We will mail your test results to your home.

If you need your test results sooner, you may call the IU Health laboratory at (317) 4973900. We may contact you to request your results and arrange for them to be mailed to you.

If you need to speak with someone other than our office, please call the IU Health laboratory at (317) 4973900.

How can I get a copy of my blood test?

If you would like to take a picture of the vial or container holding your blood sample, please contact the IU Health laboratory at (317) 4973900.

What happens if I need to speak with someone other than the doctor?

If you need to talk to someone other than the doctor, please call the IU Health laboratory at (317) 49739000.

What can I do at home?

Please take your time when you call.

What are my rights as a patient?

You have the right to ask questions, ask for your test results, and be referred to a doctor you feel is best for you.

How do I find a doctor?

You can do this by calling the IU Health Laboratory at (317) 4973900. You can also find a doctor by entering your zip code.

Will I get my results right away?

Many of our lab tests take a few days to process. It may take a few days from the date of your blood draw to get your test results, but it will be a few days from the date of your appointment. If you need your test results sooner, you may call the IU Health Laboratory at (317) 4973900.

Do you accept my insurance?

Yes. We accept most major insurance companies. To learn more about your insurance benefits, please call your insurance company.

Are my results confidential?

Yes. Your test results are confidential.

Will you contact me?

We will contact you to schedule your appointment if we need more information about your test results.

How do I take my test results?

If you need to take your test results, please call our lab at (317) 4973900. We will mail your results to you.

What if there is a problem?

Depending on the nature of your blood test, you may need to contact your doctor. We will do this if you do not get your test results in a reasonable time.

What if I have questions?

If you are not sure what to do, call us at (317) 4973900.

Additional information

The Indiana University Health Laboratory is accredited by the CLIA/ISF certified ISO/IEC 15189:2013 Laboratory accreditation program. Test results are also accepted for medical and scientific purposes in the United States and internationally.

The IU Health Laboratory also offers a full diagnostic testing service from the convenience of your home.

The bottom line

Getting your blood drawn can be exciting, but it can also be stressful. We make your whole experience a breeze. Our doctors are here to answer all of your questions, and our staff is friendly and efficient.

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