ISO $15189$:$2007[4\mathrm{.}14\mathrm{.}2]$ states: $$The main elements of the quality management

system should normally be subject to internal audit once every twelve months$.$

This requirement does not mean that a complete audit needs to be done annually.

Rather, it means that over a period of a year, every part of the laboratory should

have at least one inspection. Doing a number of small, bench$-$specifi c or sectionspecifi c audits is much easier than trying to do them all at the same time.

Establish a policy that, at specifi ed intervals, some section of the laboratory or a

specifi c process will have an internal audit. In general, audit regularly and consider

three to six$-$month intervals between audits. If audits reveal specifi c problems, it

may be necessary to include more frequent audits. List some MCQ With correct answer