Terminology and Dosing

Question 1

Pharmacology

Answer 1

study of the effects of drugs on the function of living systems

Question 2

Drug

Answer 2

a chemical substance of known structure that when administered to a living organism produces a biological effect

Question 3

Pharmacokinetics

Answer 3

the study of absorption, distribution, metabolism, & elimination (what the body does to the drug)

Question 4

Pharmacodynamics

Answer 4

what a drug does to the body

Question 5

Over-the-counter drugs

Answer 5

drugs considered safe to use by a lay person

Question 6

Prescription drug

Answer 6

drugs not considered safe to be used by a lay person and require a prescription; CAUTION: law restricts this drug use by or on order of a licensed veterinarian

Question 7

Veterinary Feed Directive (VFD) drugs

Answer 7

drugs that are approved for use in or on animal feed under the professional supervision of a licensed veterinarian

Question 8

Dose

Answer 8

quantity of drug to be taken (e.g. mg/kg, mg/lb, ml/kg)

Question 9

1 lb = ? g

Answer 9

454

Question 10

Metric prefixes

Answer 10

kilo: 10³ milli: 10^-3 micro: 10^-6

Question 11

Percent weight-to-volume (%w/v)

Answer 11

of grams of a drug per 100 mls of a solution

Question 12

Percent volume-to-volume (%v/v)

Answer 12

of mls of a drug per 100 mls of a solution

Question 13

Percent weight-to-weight (%w/w)

Answer 13

of grams of a drug per 100 g of a solution

Question 14

Drug dosing calculation

Answer 14

(Desired dose * weight of patient)/Concentration of drug

Question 15

Extra-label drug use

Answer 15

drugs are FDA approved for human use but efficacy is untested in animals

Question 16

What act covers extra-label drug use?

Answer 16

Animal Medicinal Drug Use Clarification Act of 1994

Question 17

Relationship between Pharmacokinetics and Pharmacodynamics

Answer 17

Question 18

Important equations

Answer 18

Amount of drug in a solution = drug concentration * solution volume

C1 x V1 = C2 x V2

C1 x V1 + C2 x V2 = CF x V(1 + 2)