Research Characteristics
Patients who have undergone gastric banding should be aware of the following signs that may indicate falling B12 levels and warrant prompt blood testing: Neurological symptoms: Tingling, numbness, or 'pins and needles' in the hands or feet Difficulty with balance or coordination Memory problems, difficulty concentrating, or 'brain fog' Mood changes, including low mood or irritability Haematological symptoms: Persistent fatigue or weakness disproportionate to activity levels Breathlessness on mild exertion Pallor or a slightly yellowish tinge to the skin Other indicators: A sore, smooth, or inflamed tongue (glossitis) Mouth ulcers occurring frequently It is important to recognise that some of these symptoms particularly fatigue and low mood are non-specific and may overlap with other post-operative nutritional deficiencies, such as iron or vitamin D deficiency
These include the bell-shaped dose-response curve, central effects after peripheral administration, a delayed and prolonged time course, and some penetration of the blood-brain barrier in essentially intact form
For easier dosing calculations, many practitioners use: 2 mg vial + 2 mL bacteriostatic water = 1 mg/mL (1,000 mcg/mL) 5 mg vial + 2 mL bacteriostatic water = 2.5 mg/mL (2,500 mcg/mL) Step 3: Draw Bacteriostatic Water Clean the rubber stopper of the bacteriostatic water vial with an alcohol prep pad
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aemia, certain gut surgeries, or dietary restrictions
