The hormones secreted from each zone all resemble the molecule cholesterol and are called steroids , but each zone secretes slightly different hormones. The zona glomerulosa secretes hormones that influence the kidneys to excrete or retain sodium and potassium, depending on the needs of the body. These hormones are called mineralocorticoids (sodium and potassium are minerals ). The zona fasiculata secretes hormones called glucocorticoids that influence the metabolism of carbohydrates , including glucose . The glucocorticoids include hydrocortisone, corticosterone, and cortisone.
The ‘Two-Pin’ technique increases sanitation for multiple dose vial users. They draw with the first pin, and then shoot/inject into the body with a new one. This procedure prevents any residual contaminants that may have remained on the drawing pin from being transferred into the body via the injection site. It also makes injection less painful since the drawing needle is necessarily dulled during passage through the rubber stopper atop the vial. A dulled needle increases injection pain because it doesn’t pierce the body as cleanly as an unused one. The protocol below is followed by AAS users who draw from multiple dose vials, but steps 4 - 8 are routinely disregarded by those users who draw from ampoules (also called ampules) and sachets.