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RBC Folate (CMIA) 紅血球葉酸鹽

R046

Specimen Required

3 mL EDTA-wb. Send ambient to lab within 24 hr. Note draw times. Fast 9-12 hr.

Schedule

Monday-Friday

Notes

Specimens should be protected from light

Specimen Stability

Ambient:

24 hr

Refrigerated:

2 days

Frozen:

1 month

Reference Interval: Conv. Units

Healthy adults (Fasting)

126.0 - 651.0 ng/mL

Reference Interval: S.I. Units

Healthy adults (Fasting)

285.0 - 1475.0 nmol/L

Reference Notes and Guidelines

RBC Folate is useful for the evaluation of folate deficiency without significant fluctuations with diet. While serum folate concentrations may rise rapidly to a normal level after a balanced meal. RBC folate levels tend to increase more slowly. Furthermore, in iron deficiency, serum folate levels may be decreased whereas RBC Folate levels are not affected. RBC Folate concentrations may reduced in about 30% of patients with Vitamin B12 Deficiency.

*Note: Updated methodology and reference range effective August 1, 2017.

Components

Name

Reference Interval

RBC Folate (by CMIA) 紅血球葉酸鹽

Conv. Units

Healthy adults (Fasting)

126.0 - 651.0 ng/mL

S.I. Units

Healthy adults (Fasting)

285.0 - 1475.0 nmol/L

8/27/2025 9:59:20 PM