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A complete blood count (CBC), given as part of a routine physical examination, can provide some clues that vitamin B12 levels may be low

Sterile 0.9% saline is appropriate where a physiological salt concentration is required by the experimental design

Therefore, the Secretary has determined that this HH PPS final rule would have significant economic impact on a substantial number of small entities

for instance, certain vitamin B-dependent epilepsies necessitate doses up to 100-600 mg per day to control seizures, with long-term supplementation of about 30 mg daily for life to prevent symptom recurrence

Nevertheless, use of metformin may decrease vitamin B 12 status: a meta-analysis of four short-term intervention trials (up to 4 months duration) in patients with type 2 diabetes found that metformin use decreased serum cobalamin concentrations by 57 pmol/L, which could have clinical implications if such patients have suboptimal vitamin B 12 status (146)