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Showing posts from September, 2011

Ionizing Radiation in Medical Diagnosis and Treatment

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Overview: “The dose makes the poison,” Paracelsus said some 500 years ago. Paracelsus was a 16th century Renaissance physician who is often credited as the father of toxicology. A doctor’s duty is to diagnose and treat but, if mishandled; the treatment can often do as much damage as the disease. Nowhere is this truer than in the field of ionizing radiation, particularly in medical procedures that use of x-rays, as in computed tomography (CT) scans, or in interventional procedures such as cardiac catheterization for angioplasty. What happens if a patient receives a very high dose of radiation during a radiological procedure? There are two general types of risks he/she might face the first one is readily visible and the symptoms can come relatively early, such as skin reddening, or erythematic and hair loss. The second effect might manifest itself slowly and take years to appear, such as an increased risk of cancer. Radiation effects on skin have been reported primarily in patients unde...

Organ Donation the Gift of Life

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Overview: “Human organ can either be donated as free (gift) or sold by the donor. The organ could be accepted/purchased directly by a patient/ his relatives or “through a third party”. Selling of human organ has enormous ethical, socio-cultural and religious implications and is prohibited in majority of countries of the world. It is banned in US and most of the European countries. The Islamic religious scholars also disapprove this practice of selling human organ. The organ donation is based on three Islamic principles i.e. beneficence, gift (donation) and usefulness and sustenance of human life”. Background: Organ transplantation is the established treatment for the failure of vital organ such as the kidney, pancreas, liver, heart or lung. Kidneys are by far the most common type of organ transplant. Future demand for organ transplants is likely to increase due to the rapid rise in some diseases, such as diabetes and hepatitis C, together with an ageing population. Organ transplantat...