Applied Pharmacology for the Dental Hygienist notes

Chapter 02: Drug Action and Handling Haveles: Applied Pharmacology for the Dental Hygienist, 7th Edition MULTIPLE CHOICE 1. A drug is defined as a biologically active substance that can modify: a. the environment. b. the pH of tissue. c. cellular function. d. immune response. ANS: C Correct: A drug can modify cellular function. A general understanding of drug action allows the dental hygienist to make informed decisions regarding possible drug interactions or adverse reactions for the...

Which of the following statements is true regarding the therapeutic index (TI) of a drug? a. A drug with a large TI is more dangerous than a drug with a small TI. b. The formula for TI is ED50/LD50. c. ED50 is 50% of the effective clinical dose. d. TI is the ratio of the median lethal dose to the median effective dose. ANS: D Correct: LD50 is the dose causing death in 50% of test animals and ED50 is the dose required to produce the desired clinical effect in 50% of test animals. Incorrec...

Chapter 02: Drug Action and Handling Haveles: Applied Pharmacology for the Dental Hygienist, 7th Edition MULTIPLE CHOICE 1. A drug is defined as a biologically active substance that can modify: a. the environment. b. the pH of tissue. c. cellular function. d. immune response. ANS: C Correct: A drug can modify cellular function. A general understanding of drug action allows the dental hygienist to make informed decisions regarding possible drug interactions or adverse reactions for the...

Which of the following statements is true regarding the therapeutic index (TI) of a drug? a. A drug with a large TI is more dangerous than a drug with a small TI. b. The formula for TI is ED50/LD50. c. ED50 is 50% of the effective clinical dose. d. TI is the ratio of the median lethal dose to the median effective dose. ANS: D Correct: LD50 is the dose causing death in 50% of test animals and ED50 is the dose required to produce the desired clinical effect in 50% of test animals. Incorrec...