Nutrition Exam 3
abuse of alcohol can lead to diminished levels of which minerals? - CORRECT ANSWER K, Mg, Zn
aspirin, an analgesic, has an enhanced effect when combined with what substance? - CORRECT ANSWER caffeine
how can poor nutritional status have a major impact on the risk of drug-nutrient interactions? - CORRECT ANSWER - stimulated or suppressed appetite
- decreased intestinal absorption
- increased renal excretion
- competition/displacement of nutrients from carrier protein sites
- interference w/ synthesis of necessary enzyme, co-enzyme, or carrier
- hormonal effects on genetic systems
- drug delivery system
-components in drug formation
list 3 drugs that have delayed/reduced absorption in the presence of food - CORRECT ANSWER aspirin
tetracycline
phenytoin name potential drug effects on food intake - CORRECT ANSWER - appetite, taste and smell changes
- GI effects: nausea, vomiting, bleeding, ulceration, intestinal peristalsis
-changes in intestinal flora
some diuretics may cause potassium losses. what are potential effects of potassium deficiency? - CORRECT ANSWER weakness, anorexia, nausea, vomiting, listlessness, apprehension, diffuse pain, drowsiness, stupor, irrational behavior
what are 5 factors that contribute to increased absorption of a drug? - CORRECT
ANSWER dissolving characteristics
gastric emptying rate
nutrients
blood flow
nutritional status
what are vitamin antagonists - CORRECT ANSWER drugs that act as metabolic antagonists and cause deficiencies of vitamins involved
why are older adults at increased risk of harmful drug-drug or drug-nutrient interactions? - CORRECT ANSWER -polypharmacy
-drugs are likely to be more toxic
-respond to drugs w/ greater variability
-have less capability of handling drugs efficiently
-nutritional status is more likely to be deficient
-more likely to make increased errors in self-care due to illness/confusion/lack of info on drug