8-1 PRINCIPLES OF PHARMACOLOGY Flashcards
What chapter in the MANMED, NAVMED P-117 covers pharmacy?
chapter 21
What type of prescriptions are no longer authorized as per chapter 21 of the MANMED P-117
faxed prescriptions
Controlled substances shall be written only on the? Never on a?
- DD 1289
- poly-prescription
Prescriptions must be written in ink, indelible pencil, type written, and must show?
- pt’s full name/ ssn
- date written
- pt’s age/ DOB
- directions for the pt
- legible signature
- refill authorization
What items, related to the drug information, must be documented on the prescription?
- full name of drug
- form of drug
- dosage size/strength
- quantity
What are the general principles of pharmacology?
- factors that affect the actions of drugs
- factors that affect drug reactions
- various types of drug interactions
- factors influencing drug response interactions
What is defined as:
activities of the drug after it enters the body?
pharmacokinetic
What is the study of drug absorption, distribution, metabolism, and excretion?
Pharmacokinetics
A fundamental concept in pharmacokinetics is?
drug clearance
What is elimination of drugs from the body?
drug clearance
What is defined as:
the transfer of the drug from the body fluids to tissues.
absorption
Carrier molecule, such as protein or enzyme, actively moves the drug across the membrane
active absorption
Diffuse across a membrane from area of higher concentration to an area of lower concentration (water soluble drugs)
passive absorption
Cells engulf the drug particle across the cell membrane
pinocytosis
What is the percentage of the administered drug dose that reaches the systemic circulation?
bioavailability
Bioavailability only occurs after the medication has been absorbed and metabolized by the?
liver
Oral drugs that have a first pass hepatic metabolism may only have a bioavailability of?
I.V medications?
- 20 to 40%
- 100%
What are factors that alter bioavailability?
- drug form
- route
- liver metabolism
- GI mucosa and motility
- Food/drugs
- solubility
Which drug absorbs faster, fat soluble or water soluble?
fat soluble
Movement of drugs throughout the body typically on proteins
distribution
Drug levels in blood to produce desired effect?
therapeutic effect
Chemical reaction by which liver converts drugs to inactive compound
metabolism