In what gauges are our needles available?

The availability of needles in specific gauges is significant because different gauges are suited for varying applications in procedures. The correct choice reflects the commonly used sizes for a variety of medical or practical tasks, particularly in contexts like injections, blood draws, or suturing.

In this case, the gauges 16, 18, 20, and 22 represent a commonly accepted range that balances the needs for both fluid administration and patient comfort. The lower the gauge number, the larger the diameter of the needle, which is useful for tasks that require a quicker flow of fluid, such as intravenous (IV) therapies or the transfusion of blood products. Conversely, smaller gauges are useful for more delicate tasks, such as pediatric administrations or subcutaneous injections. This range allows for versatility in different clinical situations.

The other options provide different sets of needle gauges that might not align as closely with standard practices or preferences for particular medical procedures. Examining the specific gauges listed in each choice reveals that they do not encompass the same breadth of practical applications as the correct answer, which makes it the preferred selection for standard needle sizes used in various medical settings.