Exercise-induced asthma is a condition of respiratory difficulty (bronchoconstriction) that is related to histamine release,is triggered by aerobic exercise, and lasts several minutes. Causes include medical conditions, environmental factors, and medications. The image below illustrates the pathogenesis of asthma.
A myelogram is an invasive diagnostic test that uses x-rays to examine the spinal canal. A special dye is injected into the spinal canal through a hollow needle. An x-ray fluoroscope then records the images formed by the dye. Myelograms can show conditions affecting the spinal cord and nerves within the spinal canal.
An angiogram is an X-ray picture of the inside of your blood vessels. carotid angiogram is a study of the inside of your carotid arteries. The carotid artery is the large artery that supplies the brain with oxygen-rich blood. The carotid artery carries blood from the heart to the head via the neck. If a person has a blockage in the carotid artery, such as a carotid stenosis (narrowing of the carotid artery) or atherosclerosis (plaque