5 Key Things to Remember Before Getting Blood Work

Before blood work, a few simple mistakes can affect test results or make the appointment more difficult. If a primary care or urgent care provider has ordered blood work during an annual checkup or as a follow-up, a little preparation can help the process run smoothly and provide the care team with more useful information. Here are five things to remember before getting blood work.

1. Don't forget to fast before the appointment

Some blood tests require fasting for a set number of hours. Eating before these tests can affect results, particularly for tests that measure blood sugar, cholesterol, or other metabolic markers. Follow the fasting instructions from the provider or laboratory. In most cases, plain water is allowed and can help prevent dehydration. However, patients should avoid beverages such as coffee, juice, soda, and alcohol, as well as foods, as they can interfere with some tests.

2. Don't stop medications unless given instructions by a doctor

Medications and supplements can affect certain lab results. That does not mean they should be stopped before blood work. Prescription medications, over-the-counter drugs, vitamins, and herbal supplements should all be included on the patient’s medication list. The provider can explain whether anything needs to change before the test. Skipping a prescribed medication without medical advice can cause health problems, so patients should ask their provider whether they need to stop any regular medications or supplements before going to the blood lab.

3. Don't forget to stay hydrated

Dehydration can make a blood draw more difficult and may cause dizziness or lightheadedness. It can also affect some lab values. Unless a medical provider has placed limits on the patient’s fluid intake, drinking water before an appointment is a good idea, particularly if the patient is fasting for the blood test. Patients with specific medical conditions that require fluid restrictions should follow their usual medical instructions instead.

4. Don't complete a strenuous workout right before the appointment

A hard workout right before blood work can temporarily change certain lab values. Exercise may affect markers related to muscles, metabolism, and hydration. While normal daily activities are usually fine, patients should avoid strenuous exercise before certain tests, especially if their provider has advised against it. Even without instructions, the medical team can clarify whether exercise could affect the results.

5. Don't forget to mention any recent illnesses

Lab results do not tell the whole story of a patient’s health on their own. Recent illness, fever, medication changes, unusual symptoms, or other health changes can affect how results are interpreted. Before the blood draw, patients should inform the provider or lab staff of any relevant changes in their health. Even when details seem minor, they may provide useful context to the results.

Save yourself the trouble of repeat tests

Preparing for your blood work ahead of time can make the lab visit easier and help the provider get a clearer picture of your whole body health. If instructions are unclear, do not hesitate to call our Sterling office before you come in for your appointment. A quick question can prevent an unnecessary repeat test and help make sure the results are useful.

Request an appointment here: https://stonesprings.millenniummedicalcare.com or call Millennium Medical Care Stone Springs at (703) 665-3242 for an appointment in our Sterling office.

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