Which of the following needle gauges has the smallest diameter?

To decrease the possibility of a faulty glucometer reading, you would:

A) use the first drop of blood obtained. B) use venous blood only for testing. C) avoid the use of alcohol as an antiseptic. D) make sure test strips are in date.

The best source of information about maintaining a piece of equipment is the equipment ________.

Fill in the blank(s) with the appropriate word(s).