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When results fall in this borderline range, a methylmalonic acid test is recommended to confirm whether a functional deficiency exists
Retention time and spectral identity confirmed through chromatographic analysis
WADA's 2022 Prohibited List now in force
Cyanocobalamin needs to be changed into active forms, while methylcobalamin is ready to use right away
If you are receiving maintenance B12 injections but symptoms return before your next scheduled dose, this should be discussed with your healthcare provider
If this occurs, seek emergency care immediately at a local emergency department or by calling 911
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