Your primary research question dictates the most appropriate delivery method
Separate reporting from office visit : If done during an E/M visit (e.g., 99213), Modifier 25 may be required on the E/M code to indicate the injection is a separately identifiable service
Every vitamin B12 shot at our La Grange clinic is given as an intramuscular injection into the deltoid (upper arm) by a licensed clinician under nurse-practitioner supervision
Weight-based dosing considerations Some protocols adjust dosing based on body weight
[1] A common starting regimen in adults with normal renal and hepatic function is 1 mL intramuscularly once or twice weekly, titrated every four weeks according to biochemical markers such as fasting lipid panel, liver transaminases, and serum carnitine
The amount of homocysteine in the blood is regulated by at least four vitamins: folate, vitamin B 6 , riboflavin, and vitamin B 12 (see Figure 1 )