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People who have a mild insufficiency of vitamin B12 may experience fatigue, memory loss, and depression
The no longer available Schillings test Back in the 1950s Robert Friederick Schilling (born in 1919) introduced the test that bears his name: the Schillings test
IM administration should be done with an appropriate needle to reach muscle tissue, and the site should be rotated (for example, alternate buttocks) if injections are repeated regularly to avoid soreness
Systemic adverse effects may include dizziness, drowsiness, confusion, blurred vision, nausea, vomiting, and respiratory depression
I have blogged about this before but it is worth revisiting because it is so shocking
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