Wonderfull great site cuanto tarda en hacer efecto el viagra de 100 mg Then there are bizarre drivers of costs. One is the prevalence of high-tech tests. Brill cited research showing that “the use of CT scans in America’s emergency rooms has more than quadrupled in recent decades” in the name of safer and better care. And that’s true up to a point. But many instances have been documented where patients have gone on to suffer needless invasive techniques or exposure to radiation, for instance. In-house laboratories are another major source of hospital profits. Patients are sent for testing so hospitals can charge the captive consumer more.