Specific xanthine agents. Methylxanthines (nursing considerations: • Advise clients to avoid consuming caffeinated beverages (coffee, caffeinated colas). Methylxanthines are bronchodilators used in the treatment of asthma and chronic obstructive pulmonary disease (COPD). IV Therapeutic Level: 10 - 20. Liver disease. Caffeine: (Major) Methylxanthines, through antagonism of adenosine and thus pharmacologic-induced coronary vasodilation, have been associated with false-negative results during dipyridamole-thallium 201 stress testing. Methylxanthines; Nursing Management. It is recommended that caffeine be discontinued for at least 24 hours prior to stress testing. Figure 8-1 shows the general xanthine structure and the structures of theophylline (1,3-dimethylxanthine) and caffeine (1,3,7-trimethylxanthine). METHYLXANTHINES NURSING IMPLICATIONS? Start studying MCC nursing 1355. Describe the therapeutic serum or plasma theophylline level and the toxic level. Because of their methyl attachments, these agents are often referred to as methylxanthines. The immediate nursing care of patients with asthma depends on the severity of symptoms. Less frequent nocturnal asthma. Assessment & Drug Effects. Please consult the latest official manual style if you have any questions regarding the format accuracy. Narrow margin of safety & high risk of toxicity - SX: anorexia, N/V, restlessness, insomnia, seizures, dysrhythmias. Methylxanthines -inhibits phosphodiesterase leads to incr. The patient and family are often frightened and anxious because of the patient’s dyspnea. Learn vocabulary, terms, and more with flashcards, games, and other study tools. • Phenobarbital and phenytoin decrease theophylline levels. histamine release -stimulates ciliary transport of ... Drug Mechanism Use Side/Adverse Effects Nursing Implications Cromolyn Sodium (non-steroidal) INTAL -prevents influx of Ca into mast cells, therefore inhibiting degranulation and release of Reginald P. Sequeira, in Side Effects of Drugs Annual, 2009. Find patient medical information for Duoneb Inhalation on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Disclaimer: These citations have been automatically generated based on the information we have and it may not be 100% accurate. Although nursing considerations and implications are slightly different, most nursing resources and textbooks use them interchangeably. METHYLXANTHINES PATIENT TEACHING? Theophylline is related chemically to the natural metabolite xanthine, which is a precursor of uric acid. Describe the side effects of beta 2-adrenergic agonists and methylxanthines. METHYLXANTHINES EXPECTED OUTCOMES? Monitor BP if patient is also on antihypertensive treatment. 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