If the diagnosis is wrong, incorrect prescribing will occur. It also occurs when a physician is forget and not aware that genetic and environtmental factors or the disease per se may alter the patient's response to a drug. For example; (1) Cigarette-smoking may markedly accelarate the rate elimination of a variety of drugs, (2) Patients with the nephrothc syndrom have low plasma albumin concentrations. These condition are associated with an increased fraction of unbound clofibrate and phenytoin, but the steady state concentration of the unbound drug is not altered because of compensatory changes

LASIK is an elected laser eye surgery that reshapes the beguiler rise of the eye (the cornea) to meliorate sensation. It is the most touristed sensation redaction surgery performed in the Unsegmented States and worldwide.

LASIK can reverse a sweeping extent of ametropia (ametropia), farsightedness (hyperopia) and ametropia. Variations and enhanced versions of LASIK countenance all-laser LASIK, trade LASIK (also called surface LASIK or wavefront-guided LASIK) and multifocal LASIK.

One machine that is really important in medical field is CT scanner. CT scanners are machines that give three-dimensional pictures that give an almost surgical view of the body. This procedure is conducted to evaluate trauma, seizures, belly pain, chronic headache, and so on. The development in technology is attempting to manufacture CT scanners that give less radiation. FDA stated that the radiation produced by one CT scanner as nearly 400 chest X-rays. Good news come to the horizon is that medical imaging trade group announced that CT scanners manufacturers will start installing safety controls to prevent of excessive radiation. It would help patients by reducing the radiation they receive.

Many sources have officially reported the effect of consuming Avandia. In 2007, New England Journal of Medicine reported the serious effects of consuming this type 2 diabetes drugs. The study concluded that Avandia potentially cause cardiac effects. Therefore, this announcement has pulled reactions from public especially those who are consuming Avandia. Of course the drug manufacturer, GlaxoSmithKline objected the report.

Starting from 2007 to 2009, some documents delivered similar reports which were announced stating that Avandia may cause some serious risks of health problem. It is found out that people who taking Avandia will have higher risk of heart attack or probably death from cardiovascular causes. Furthermore, compare to the diabetes drug in the same class, Actos, older patients with diabetes taking Avandia have more risks for getting heart attack or death.