Most people with high blood pressure have essential, or primary, hypertension, for which no specific cause can be determined.
When a cause cannot be identified, families often embark on a diagnostic odyssey that can last for years until the exact cause can be determined.
Although "additional analysis is needed before a cause can be determined," the safety board said recently, an NTSB document released June 8 contained a possible explanation.
South African police investigating the death of the former Somerset captain and cricket writer Peter Roebuck expect an inquest to last at least six weeks before an official cause can be determined.
However, when cause can be determined, uveitis is often found to originate from an infection (viral, fungal, bacterial, or parasitic), systemic disease (typically an autoimmune disorder), or injury to the eye.
Other sensory disturbances associated with conversion disorder may encompass the special senses of vision, hearing, taste, or smell; or they may involve the experiencing of severe pain for which no organic cause can be determined.
The groups —the Sierra Club, the Wilderness Society and the Natural Resources Defense Council — appealed to U.S. Interior Secretary Ken Salazar to suspend the drilling plan at least until a cause can be determined for the disastrous blowout in the Gulf of Mexico.
Non-polio enteroviruses account for 80to90%0% of cases of viral meningitis where a cause can be determined [ 2, 3].
Antibiotics are prescribed if patients meet any of the following criteria: increase of the amount of mucus, mucus purulence or CRP > 50 for which no other cause can be determined.
