Percutaneous dilatational tracheostomy (PDT) is an invasive procedure in which the placement of a tracheostomy tube is achieved after establishing a tracheal stoma through dilation, rather than ...
The Amsler grid tests the condition of the center of the retina or "macula". It is a good test for screening for the development of "wet" macular degeneration in patients with "dry" macular ...
A uric acid test measures the amount of a waste product called uric acid (urate) in your blood or urine. Uric acid is a byproduct of the breakdown of chemicals called purines found in foods and drinks ...