Pretreatment of patients with asthma who are administered low-osmolar contrast material.
D001249:Asthma / Q000139:chemically induced* / Q000517:prevention & control*; D003287:Contrast Media / Q000009:adverse effects*; D004342:Drug Hypersensitivity / Q000517:prevention & control*; D006801:Humans; D011292:Premedication; D012307:Risk Factors