Drug_Nutrient_Interactions8-10.BW.ppt

Drug_Nutrient_Interactions8-10.BW.ppt - Food Medication...

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Food Medication Interactions Because of the importance of food-drug interactions in the effectiveness of medication and the overall health care provided, various strategies have been undertaken at health care facilities to meet the JCAHO requirements for food-drug interaction counseling. A sample policy statement would read: “Patients discharged on modified diets receive written instructions and individualized counseling before discharge, including food-drug interaction counseling when indicated” and educational materials should be available. Materials for use with patients should be approved by the medical team, including registered dietitians and pharmacists. The dietitian should consider food-drug interactions in the patient on several medications and in whom nutritional status cannot be maintained or is deteriorating. Documentation in the medical record is required when instruction has been given, including assessment of the patient’s comprehension, ability, and willingness to follow instructions. www.webmd.com or www.nlm.nih.gov/medlineplus http://www.merck.com/mmpe/appendixes/ap2/ap2a.html
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Terminology Medicines/Drugs/pharmaceuticls – chemical used for diagnosis, prevention, treatment of symptoms, or cure Prescription Over the counter (OTC) Pharmacotherapy – use of drugs for the treatment of disease and health maintenance Pharmacology – study of drugs, properties and their effects Pharmacodynamics : physiologic and biochemical effects of a drug or combination of drugs Pharmacokinetics : movement of a drug through the body by absorption, distribution, metabolism, and excretion Pharmacogenenomics-response to a drug based on genotype http://www.ornl.gov/sci/techresources/Human_Genome/medicine/p
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Naming of Drugs Chemical name Describes molecular structure e.g.N-(4-hydroxyphenyl) acetamide All drugs have to obtain FDA approval for safety and efficacy After approval the drug is given a name Generic name - official name e.g.acetaminophen Trade name – Brand name e.g. Tylenol An understanding of pharmacology will improve patient outcomes, maximize nutritional status, decrease complications and risks JCAHO requires monitoring, documentation, and patient education of food-drug interactions Preventing interactions is one part of nutrition assessment/ pharmacotherapy
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Drug-Nutrient Interactions S pecific changes to pharmacokinetics of a drug caused by nutrient(s) or changes to the kinetics of nutrient(s) caused by a drug Food –Medication interactions can Alter intended response to medication Drug toxicity Alter nutritional status
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Interactions Medications achieve intended effects Patients do not discontinue drugs Minimize need for additional medication Avoid adverse side effects Preserve optimal nutritional status Avoid accidents and injuries Minimize disease complications
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Drug_Nutrient_Interactions8-10.BW.ppt - Food Medication...

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