RBC FOLATE

LAB70

 

Collect

Lavender (EDTA) or pink (K2EDTA).

Specimen Preparation

Protect from light during collection, storage, and shipment. Mix specimen well. Transfer 1 mL whole blood to an ARUP Amber Transport Tube.

Unacceptable Conditions

Non-frozen specimens. Clotted specimens.

Storage/Transport Temperature

1 mL whole blood, frozen. Submit specimen in an ARUP amber transport tube.

Offsite: Hematocrit result required.  Either submit a hematocrit result obtained within 24 hours of collection, or send a separate sample ofunfrozenEDTA whole blood to lab so hematocrit result can be obtained. 

Stability (from collection to initiation)

Ambient: 2 hours; Refrigerated: 4 hours; Frozen: 2 months

Remarks

Hematocrit must be performed and indicated on the test request form.  If the patient has not received a transfusion or experienced excessive bleeding between the RBC folate draw and the hematocrit draw, any hematocrit drawn within 24 hours of the RBC folate draw is acceptable.

Performed

Sun-Sat

Methodology

Quantitative Chemiluminescent Immunoassay

Reported

Within 24 hours

Synonyms

  • LAB70

Ordering Recommendations

Aids in detection of folate deficiency.

Reference Interval

Greater than or equal to 366 ng/mL

CPT Codes

82747
Collection

LAB70

 

Collect

Lavender (EDTA) or pink (K2EDTA).

Specimen Preparation

Protect from light during collection, storage, and shipment. Mix specimen well. Transfer 1 mL whole blood to an ARUP Amber Transport Tube.

Unacceptable Conditions

Non-frozen specimens. Clotted specimens.

Storage/Transport Temperature

1 mL whole blood, frozen. Submit specimen in an ARUP amber transport tube.

Offsite: Hematocrit result required.  Either submit a hematocrit result obtained within 24 hours of collection, or send a separate sample ofunfrozenEDTA whole blood to lab so hematocrit result can be obtained. 

Stability (from collection to initiation)

Ambient: 2 hours; Refrigerated: 4 hours; Frozen: 2 months

Remarks

Hematocrit must be performed and indicated on the test request form.  If the patient has not received a transfusion or experienced excessive bleeding between the RBC folate draw and the hematocrit draw, any hematocrit drawn within 24 hours of the RBC folate draw is acceptable.
Ordering

Performed

Sun-Sat

Methodology

Quantitative Chemiluminescent Immunoassay

Reported

Within 24 hours

Synonyms

  • LAB70

Ordering Recommendations

Aids in detection of folate deficiency.
Result Interpretation

Reference Interval

Greater than or equal to 366 ng/mL
Administrative

CPT Codes

82747

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