The concentration could be 5mg/mL, 10mg/mL, or 20mg/mL, and each one changes how many units you draw
Journal of Clinical Medicine , 9 (2), 474
For example, a 25G indicates that this is a 25 gauge needle that is a half-inch long
Renal function tests are important, as GLP-1 receptor agonists can occasionally affect kidney function, particularly in patients with pre-existing renal impairment or those experiencing severe gastrointestinal side effects leading to dehydration
While very high oral doses (1,000 to 2,000 mcg) can achieve some passive absorption without intrinsic factor roughly 1% of the dose is absorbed passively many clinicians prefer the reliability and rapid correction offered by injections in this population