A nurse is using an 18-gauge needle to administer a medication to a client. The nurse knows that when compared to a 27-gauge needle, an 18-gauge needle has which of the following features?
A) Shorter length
B) Greater length
C) Larger diameter
D) Smaller diameter
C
Feedback:
For most injections, 18- to 27-gauge needles are used; the smaller the number, the larger the diameter. For example, an 18-gauge needle is wider than a 27-gauge needle. The needle gauge or the diameter refers to its width.
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