15. Metronidazole given to treat a dental infection can cause a disulfiram-like reaction when taken with: a. Kava. b. Alcohol. c. St. John’s wort. d. Grapefruit juice. 16. Clinical research suggests that the herbal supplement echinacea can: a. Increase flu- like symptoms. b. Treat and prevent the common cold. c. Lower blood glucose levels. d. Decrease the risk of high blood pressure. 17. Which herbal supplement is used to improve cognitive performance and mental alertness: a. Ivy leaf. b. Beta- sitosterol. c. Red rice yeast. d. Green tea. 18. Which of the following statements is true regarding the effects of drugs during pregnancy and breastfeeding? a. The concept of a “placental barrier” is a real and true phenomenon. b. For most drugs, the infant is exposed to a much higher concentration during pregnancy than during breastfeeding. c. Drugs that contain large molecules get into breast milk more easily than drugs that contain small molecules. d. The half-lives of drugs are usually longer in the maternal circulation than in the neonatal circulation. 19. An example of a substance with large molecules that is not excreted in breast milk is: a. Ethanol. b. Heparin. c. Amphetamine. d. Benzodiazepines. 20. How many half-lives does it take for more than 90% of most medications to be eliminated from the body?
7. Based on their mechanism of action, herbal- drug interactions can generally be classified as
pharmacodynamic or: a. Pharmacogenetic. b. Pharmacokinetic. c. Pharmacotherapeutic. d. Pharmacovigilant.
8. The extracts of white horehound are used as flavoring in foods and beverages and as: a. An expectorant in cough syrups and lozenges. b. A sedative in many analgesics used in dentistry. c. A blood thinner in anticoagulants. d. A thickener in liquid medications. 9. Patients should refrain from ingesting echinacea at least 24 hours before a dental appointment if: a. Bleeding is anticipated. b. The patient has type 1 diabetes. c. Diazepam use is anticipated for sedation. d. Ibuprofen will be prescribed for postoperative pain management. 10. The medical literature suggests that black cohosh may be useful for alleviating: a. Headaches. b. Menopausal symptoms (hot flashes). c. Osteoporosis. d. Erectile dysfunction. 11. When using aspirin or other NSAIDs to control postoperative dental pain, taking excessive amounts of ginger might increase the risk of: a. Nausea. b. Depression. c. Sedation. d. Bleeding. 12. Clinical research shows that some elderberry extracts might reduce: c. Flu-like symptoms. d. Essential tremors. 13. Oral ginkgo 240 mg seems to improve the symptoms of various types of: a. Dementia. b. Hypertension. c. Hypothyroidism. d. Parkinson’s disease. 14. ___________ is a UVC sensitizer to inhibit the proliferation of oral cancer cells: a. Turmeric b. Cannabidiol (CBD). c. Ivy leaf. d. Ashwagandha. a. Respiratory congestion. b. Blood glucose levels.
a. One. b. Two. c. Three. d. Four.
Course Code: DCA02HD
Page 100
EliteLearning.com/Dental
Powered by FlippingBook