Failure of the mature hemodialysis arteriovenous fistula (AVF) is frequently suspected during monitoring designed to detect stenosis so that it can be identified and treated prior to thrombosis, usually on the basis of physical examination findings, flow measurements, or duplex ultrasound [2,3].
An objective perspective is one that is not influenced by emotions, opinions, or personal feelings - it is a perspective based in fact, in things quantifiable and measurable. A subjective perspective is one open to greater interpretation based on personal feeling, emotion, aesthetics, etc. For example: I may take an objective perspective that the Bible is the most published book in all of history.
Objective (optics) In optical engineering, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image. Objectives can be a single lens or mirror, or combinations of several optical elements. They are used in microscopes, telescopes, cameras, slide projectors, CD players and many other optical instruments. Objectives are also called object lenses, object glasses, or objective glasses