How to use "hypodermic" in a sentence

He removed other things from the bag too: a length of flexible rubber tubing, a sphygmomanometer for monitoring blood pressure, two small bottles of amber-colored fluid, and a packet of disposable hypodermic syringes.

"What are the hypodermic needles for?"

While Elliot drove, he told Tina what had happened at his house: the two thugs, their interest in the possibility of Danny's grave being reopened, their admission that they worked for some government agency, the hypodermic syringes...