Syringe needles are essential medical tools used for injecting substances into the body or withdrawing fluids. It’s important to understand the different characteristics of syringe needles to ensure they are used properly and safely. Let’s explore which statements about syringe needles are correct.

Key Features of Syringe Needles

1. Needle Size is Measured in Gauge

• Correct: Needle size is indeed measured in gauge. The gauge of a needle refers to its diameter, with a higher gauge number indicating a smaller needle. For example, a 25-gauge needle is smaller than an 18-gauge needle. The appropriate needle gauge is selected based on the type of injection and the viscosity of the substance being injected.

2. Larger Needles Are Always More Painful

• Not Correct: The pain level of a needle insertion depends on factors like the needle’s sharpness, the injection site, and the depth of injection rather than just the size. While larger needles (lower gauge) can cause more tissue damage, the pain also depends on the individual’s sensitivity and the procedure being performed.

3. Needles Are Always Single-Use

• Correct: Syringe needles are designed for single-use only. After one injection or withdrawal, needles should be safely discarded to prevent infection or injury. Reusing needles increases the risk of infection and transmission of diseases.

4. The Needle Length Determines How Deep the Injection Will Be

• Correct: Needle length is a critical factor in determining how deep the injection will be. A longer needle is typically used for intramuscular (IM) injections, while a shorter needle may be used for subcutaneous (SC) injections. The correct needle length ensures the medication is administered to the appropriate tissue layer.

5. Needles Can Be Reused If Sterilized Properly

• Not Correct: Needles should not be reused, even if sterilized. Sterilizing needles does not guarantee that they remain free of bacteria or that they maintain their sharpness and safety for reuse. Reuse can cause tissue damage and increase the risk of infection.

Conclusion

The statements that are correct about syringe needles are that needle size is measured in gauge, needles are always single-use, and the needle length determines how deep the injection will be. Reusing needles, even after sterilization, is not safe.