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Folate Whole Blood Test, RBC

The Folate Whole Blood Test, RBC, measures folate RBC levels in the blood to screen for megaloblastic anemia.

Sample Report

Test Code: 266015

CPT Code: 82747,85014

Also Known As: RBC Folate; hematocrit

Methodology:

Electrochemiluminescence Immunoassay (ECLIA)

Specimen Type: Blood

Preparation:

No fasting is required. Patients should avoid taking vitamins containing folic acid three to five days prior to testing. Patients should also stop biotin consumption at least 72 hours prior to the collection.

Test Results:

2-3 days. May take longer based on weather, holiday, or lab delays.


Test Code: 467

CPT Code: 82747

Also Known As: RBC Folate; hematocrit

Methodology:

Immunoassay (IA)

Specimen Type: Blood

Preparation:

No fasting is required. Patients should avoid taking vitamins containing folic acid three to five days prior to testing. Patients should also stop biotin consumption at least 72 hours prior to the collection.

Test Results:

3-5 days. May take longer based on weather, holiday, or lab delays.

Description

What is the purpose of this test?

Order this Folate Serum Test, which measures folate RBC levels in the blood to screen for megaloblastic anemia. Folate, also referred to as folic acid or vitamin B9, has many crucial functions in the body, such as aiding in the creation of DNA, which is responsible for your distinct genetic makeup. Folate testing is done to check for low levels of the nutrient.

 

Folate is found naturally in certain foods like:

  • Leafy greens
  • Nuts 
  • Citrus fruits
  • It's also added to many foods in the form of folic acid

 

Folate testing is typically done to detect a deficiency. Your healthcare provider may request folate testing if you've had an abnormal CBC or blood smear test that indicates megaloblastic anemia. Megaloblastic anemia causes red blood cells to be unusually large, deformed, and immature and can be caused by a deficiency in folate or vitamin B12. In the early stages, it frequently has no symptoms. During treatment, folate levels are tracked to ensure they return to normal.

 

When should I order a Folate Whole Blood Test, RBC?

Individuals may order this test if they have experienced symptoms related to megaloblastic anemia. Common signs or symptoms of megaloblastic anemia include:

 

  • Weakness and fatigue
  • Shortness of breath
  • Abnormal heartbeat
  • Pale skin
  • Dizziness or feeling light-headed

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