title: Limitations of serum digitalis levels.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000097:blood / Q000209:etiology; D001281:Atrial Fibrillation / Q000097:blood / Q000188:drug therapy; D001282:Atrial Flutter / Q000188:drug therapy; D001283:Atrioventricular Node / Q000187:drug effects; D003937:Diagnosis, Differential; D004071:Digitalis Glycosides / Q000032:analysis / Q000097:blood* / Q000494:pharmacology / Q000633:toxicity; D004074:Digitoxin / Q000097:blood / Q000627:therapeutic use; D004077:Digoxin / Q000097:blood / Q000627:therapeutic use; D006331:Heart Diseases / Q000188:drug therapy; D006339:Heart Rate / Q000187:drug effects; D006352:Heart Ventricles / Q000187:drug effects; D006801:Humans; D009206:Myocardium / Q000032:analysis; D011041:Poisoning / Q000175:diagnosis; D011863:Radioimmunoassay
chemical_list: D004071:Digitalis Glycosides; D004077:Digoxin; D004074:Digitoxin