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Needle Gauge

Meaning

Needle gauge is a standardized measurement system used in clinical practice to precisely denote the external diameter of the hollow shaft of a hypodermic needle. In the context of hormonal administration, particularly for injectable therapies like testosterone or growth hormone, the gauge is a critical factor influencing patient comfort, minimizing injection site trauma, and determining the viscosity-dependent flow rate of the medication. It is important to remember that a higher gauge number corresponds inversely to a smaller needle diameter.