Diagnosis
Although NDPH is classified as a primary headache syndrome, it must be remembered that a number of important conditions can present with a new-onset persisting headache, and these must be excluded prior to making a diagnosis of a primary headache disorder.The diagnosis is one of excluding the many secondary types or NDPH mimics, which is especially critical early in the course of the disease when a secondary etiology is more likely. NDPH mimics include but are not limited to:
neoplasms
subarachnoid hemorrhage
idiopathic intracranial hypertension
temporal arteritis
chronic subdural hematoma
post-traumatic headaches
sphenoid sinusitis
hypertension
spontaneous cerebrospinal fluid leak
cervical artery dissections
pseudotumor cerebri without papilledema
cerebral venous thrombosis
Chiari malformation
NDPH with medication overuse headacheMany doctors state that the condition is best viewed as a syndrome rather than a diagnosis. Once a diagnosis of NDPH is made, clinicians argue that patients are best managed according to the more detailed pathophysiology-based diagnosis than lumped together into a single group, since a single disorder is unlikely to exist.NDPH is classified as a Primary Headache Disorder by the ICHD-2 classification system (by the IHS) using number 4.8. It is one of the types of primary headache syndromes that present as a chronic daily headache, which is a headache present for more than 15 days a month for more than 3 months.
Orthostatic proteinuria (synonyms: orthostatic albuminuria, postural proteinuria)  is a benign condition. A change in renal hemodynamics, which in some otherwise normal individuals, causes protein (mostly albumin) to appear in urine when they are in the standing position. Urine formed when these individuals are lying down is protein-free.There is normal urinary protein excretion during the night but increased excretion during the day, associated with activity and upright posture. Total urinary protein excretion may be increased but levels above 1 g per 24 hours are more likely to be associated with underlying renal disease. The exact cause for orthostatic proteinuria is not known. == References ==