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Test Code LAB69 Folate

Important Note

This test is recommended in place of the obsolete test "RBC Folate" / "Folate, RBC". Care providers should be contacted and encouraged to order this test in place of RBC Folate orders.

Additional Codes

CPT Code: 82746

Methodology

Electrochemiluminescence immunoassay (ECLIA)

If vitamin B12 level is also requested, order Vitamin B12 and Folate, Plasma or Serum (LAB2405).

Performing Laboratory

TidalHealth Peninsula Regional - Core Laboratory: Chemistry

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma

Draw blood in a green-top (lithium heparin) tube from a fasting patient. (Hemolyzed specimen is not acceptable.) Spin down and send 2 mL of lithium heparin plasma.

Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

 

Serum

Draw blood in a gold-top serum gel tube from a fasting patient. (Hemolyzed specimen is not acceptable.) Spin down and send 2 mL of serum.

Note: 1. Indicate serum.

2. Label specimen appropriately (serum).

Reference Values

≥4.6 ng/mL