Which of the following statements is true with respect to the gauge of the needle?
a) they are ranked from largest to smallest, 25, 27, and 30 gauges
b) the gauge of the needle refers to the length
c) the 40-mm needle is used for most injections
d) the 30-gauge needles are stiffer and deflect less as they penetrate
e) the smaller-gauge needles provide easier and more accurate aspiration

D) The 30-gauge needles are stiffer and deflect less as they penetrate

Explanation:

Needle gauge is referred by the circumference of the opening or the inner measurement of the needle. Gauge size of larger value comes with narrow bore size and the diameter of the hole is smaller. So larger gauge needle such as 25 G, 27 G, 30 G gauge needle provides less pain when penetrated in the body and also minimizes  the damage cause to the blood vessels by the penetration of the needle.

                   These needle are strong and stiffer and they cause less pain to the body. These are highly preferred as they do not deflect when penetrated.

Thus the answer is D) The 30-gauge needles are stiffer and deflect less as they penetrate.

obviously, the latter.

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