Files stored in the UPD format are more commonly known as program update information files. These .upd files are text documents, and its content can be viewed by any text editing or word processing application. Users of Microsoft Windows-based systems can use the Microsoft Notepad application to open and edit these .upd text documents.
Croup (acute laryngotracheobronchitis) on X-ray with steeple sign. Croup, also called acute laryngotracheobronchitis is caused by viral infection of the upper airway usually parainfluenza virus or respiratory syncytial virus (RSV).
The tilt-table test is performed to detect one of the most common causes of fainting, orthostatic hypotension (postural hypotension). During the test, the patient's blood pressure and pulse are recorded while lying on the table as the table is tilted upward.