Patients should be informed of the pros and cons of oral versus parenteral therapy, and regardless of the form of treatment, those with pernicious anemia or malabsorption should be reminded of the need for lifelong replacement
Cutting Through the Marketing Spin B12 and MIC B12 injections aren't miracle workers
During rapid correction of severe anemia, potassium may need monitoring in some higher-risk patients
A small amount (approximately 1% of the total amount ingested) is absorbed by simple diffusion, but this mechanism is adequate only with very large doses
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It acts as a metabolic "messenger," translocating to the nucleus in response to metabolic stress to regulate genes involved in glucose handling
