Definition
The term fever of unknown origin (FUO) is best reserved for children with a fever documented by a health care provider and for which the cause could not be identified after 3 wk of evaluation as an outpatient or after 1 wk of evaluation in hospital.
Nelson Text Book 18thEdition
Ergönül O, Willke A, Azap A, et al. Revised definition of ‘fever of …

Rapidly progressive is characterized by the histopathologic finding of crescents in the majority of glomeruli. The natural history in most forms is rapid progression to end-stage renal failure.
It is characterized by rapid deterioration of renal functions over days to weeks.
MANAGEMENT of RPGN-
We have elaborated “The regimen used by the Glomerular Disease Collaborative Network at the University of North Carolina at …

Cough is one of the most common presenting complain in children at Out-patient. Cough may be just a benign protective phenomenon , but at times it become troublesome . Cause of Cough Should be sought for even outside the respiratory system, like ears,abdomen etc.
CHRONIC COUGH
Cough  lasting for 4 weeks or more -CHEST January 2006
1.Inflammatory disorder of airway
Asthma & Loeffler’s syndrome, Tropical …

Sometimes during manual blood pressure measurement by auscultatory method, after a few initial tapping sounds, no sound is heard for a variable duration and then the sounds are heard again. This period when no sound is heard is called as auscultatory gap.
Korotkoff sounds:
When the cuff pressure is great enough to close the artery during part of the arterial pressure cycle, …