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FAST REVISION
General Medicine
Nitroglycerin is a vasodilator that primarily acts by relaxing vascular smooth muscles, which leads to dilatation of coronary arteries.
Endodontics
The designation "D2" on an endodontic file indicates the diameter of the file at the tip, measured in hundredths of a millimeter. This helps clinicians select the appropriate file size for root canal treatment.
Biochemistry
repeatablity of test is precision and getting results within reference range is accuracy