The following algorithm schematic shows part of Acute Rheumatic Fever (ARF) Diagnosis Guide. The guideline was issued by the National Heart Foundation of New Zealand and the Cardiac Society of Australia and New Zealand.
This Acute Rheumatic Fever Diagnosis Guide Algorithm Diagram outlines Diagnostic Requierement and Category of ARF (Definite, Probable, and Possible ARF), Streptococcal Antibody Titres, Epidemiological Risk Factors, Differential Diagnoses of Common Major Manifestations of ARF, and Investigations in Suspected ARF.
Read more »
Anti Diuretics Hormone (ADH) is a hormone secreted by the hypothalamus and is stored in the pituitary gland which has target cells at the endothelial cells of the collecting ducts of the kidney nephrons. The following schematic appears The Effect of Anti Diuretics Hormone:

In order to prevent loss or gain of water from cells, water potential of the blood must be regulated. It is the hypothalamus that control blood water homeostasis since it contains osmoreceptor cells, which can detect changes in the water potential of the blood passing through the brain.