 This is the Newark Urgent Care Medical Minute with Dr. Jack Horowitz. Today's subject, ultrasound in urgent care. For decades, the only imaging study available to us has been x-ray and the use of ultrasound has opened up many, many more possibilities. We can now look for things like gallstones, kidney stones, blood clots in the legs. We've even been able to diagnose a retinal detachment in the eye.