Final Flashcards
What is a drug?
Anything that alters the normal function of the body
What is pharmacology?
The study of drugs
What is therapeutics?
Any drug used to cure a disease or disorder
Naming a drug is based on what 5 things?
- chemical
- code
- generic
- official
- trade
What is the chemical name?
Based on the chemical structure
What is the code name?
Experimental, drug shows potential and is usually alpha numeric
What is the generic name?
Non proprietary name, related to the chemical and may not be the same in US and Canada
What is the official name?
Fully approved and adopted by the USP and NF
What is the trade name?
Legally registered brand name
3’4 dehydrase-isopylamino-benzyl alcohol hydrochloride is an example of what?
Chemical name
Isoproterenol HCL is an example of what?
Generic and official names
Isuprel and Norisodrine are examples of what?
Trade names
This sets standards, identity and purity. It is uniform strength and very objective
USP-NF
This is published by APA and established formulations not in the USP. It is revised continuously
AHFS
This is the reprint of the manual literature which includes a list of generic names, classes, pictures. It lacks objectivity and is a good general reference
PDR
This is published by ASHP and discusses drug classes and new drugs that are not in the USP-NF. It is very objective and very informative
Hospital Formulary
What are the six sources of drugs?
- plant
- animal
- micro org
- mineral
- synthetic
- bioengineered
What are some examples of plants and the drugs that come from them?
Purple fox glove (digitalis), deadly nightshade (atropine) and opium poppy (morphine)
What are some examples of animals and the drugs that come from them?
Bovine thyroid gland (throxine) and porcine pancreas (natural insulin)
What are some examples of micro organisms and the drugs that come from them?
Molds (penicillin) and bacteria (streptomycin)
What are some examples of minerals?
Iron
What are some examples of synthetic?
Albuterol
What are some examples of bioengineered and the drugs that come from them?
Cell cultured (urokinase) and recumbiant DNA (R-Hirudin)
What are the six parts of a prescription?
- pt’s name, address and date
- superscription
- inscription
- subscription
- sig
- name of prescriber
What is the superscription of a prescription?
Rx pharmacist recipe
What is the inscription of a prescription?
Lists name and quantity
What is the subscription of a prescription?
Directions of preparing
What is the sig of a prescription?
Instructions from the pharmacist to the patient
What are some considerations of administering drugs?
- have a written order
- know desired effect
- always know the drug to be given
- document if pt refuses
- know symptoms of overdose and treatment
What are the six rights of drugs?
- right client
- right drug
- right dose
- right rime
- right route
- right documentation
What are the seven aerosolized agents?
- adrenergic
- anticholinergic
- antiasmathic
- antiinfective
- corticosteroid
- exogenous surfactant
- mucoactive
What is the pharmaceutical phase of drug administration?
The making of a drug available to the body for absorption
What is the dosage form of a drug?
The physical state of the drug in association with non-drug components
What is administration?
The portal of entry for the drug into the body
What are the five dosage forms?
- oral (enteral)
- injectable
- aerosol/MDI
- suppository
- sublingual
What are the five routes of administration?
- enteral
- parenteral
- transdermal
- inhalation
- topical
What route is the safest and what route is the fastest?
Oral is the safest and parenteral is the fastest
What is the pharmokinetic phase?
The time course and deposition of a drug in the body
What four things is the pharmokinetic phase based on?
- absorption
- distribution
- metabolism
- elimination
What is the pharmacodynamic phase?
The interaction of drug molecules with target receptor sites (how a drug works)
What are the three ways drugs produce effects?
- key fits lock and causes a reaction
- key fits lock but does not cause a reaction
- key alters membrane permeability
What does it mean when a key fits a lock but does not cause a reaction?
The drug blocks the receptor site to keep reactions from occurring
What are the three things that must happen for lock and key?
- drug must reach receptor site
- drug must be specific to receptor site
- drug specificity depends on chemical structure
What are the terms for lock and key?
- affinity
- efficacy
- agonist
- antagonist
What does affinity mean?
Likeness or attraction
What does efficacy mean?
Effect
What does agonist mean?
Both affinity and efficacy
What does antagonist mean?
Affinity but not efficacy
What are the four types of drug interactions?
- additive
- synergism
- potentiation
- antagonism
What is additive?
1+1=2. Two drugs that both do what they’re supposed to do
What is synergism?
1+1=3. Two drugs that work better together than separate
What is potentiation?
1+0=2. One drug doesn’t do anything but the second drug does better because the first one is there
What is antagonism?
1+1=0. Cancel each other out
What is addiction?
Physical need
What is dependence?
Psychological need
What is an allergy?
A damaging immune response to a substance
What is anaphylaxis?
A severe hypersensitivity reaction
What is a carcinogen?
A drug that causes cancer
What is cumulation?
The drug is excreted slower than it’s given so it builds up
What is desensitization?
Less affected by a drug
What is half-life?
How much time it takes to decrease the drug in your body by half
What is the paradoxical effect?
Get the opposite effect that you expect
What is potency?
Strength of a drug
What is resistance?
Lack or responsiveness no matter how much of the drug you take
What is a side effect?
Any effect that occurs that wasn’t the desired effect
What is tachyphylaxis?
Rapidly developing drug tolerance
What is a teratogen?
A drug that causes birth defects
What is tolerance?
When you need more and more of a drug to produce the desired effect
What is maximal effect?
The greatest response that can be produced by a drug (no further response can be elicited)
What does ED 50 mean?
Half of the test subjects improve
What does LD 50 mean?
Half of the test subjects die
For the therapeutic index, the ____ the number the more dangerous
Smaller
What parts of the body does the central nervous contain?
Brain and spinal cord
What are the parts of the autonomic nervous system?
Sympathetic, parasympathetic and nonadrenergic noncholinergic (NANC)
What is the sympathetic system?
It is the general alarm system. It is not essential for life and is considered the “fight or flight” system
What is the parasympathetic system?
It regulates daily functions
what are the four main things that the parasympathetic system regulates?
- salivation
- lacrimation
- urination
- defication
The peripheral nervous system contains what?
The sensory, somatic and autonomic nervous systems
What is the sensory system?
Afferent. Input to the brain such as light, heat and pressure
What is the somatic system?
Efferent. Away from the brain and largely voluntary skeletal muscle
What are the parts of the sympathetic branch?
- short preganglionic fiber
- ganglionic synapse
- long postganglionic fiber
- neuroeffector synapse
Sympathetic fibers innervate the ____ and cause the release of ____ into general circulation
Adrenal medulla; epinephrine
Circulating epinephrine stimulates all receptors to responding ___ even if no sympathetic nerves are present
Norepinephrine
Sympathetic nerve stimulation is both ___ and ___
Electrical and chemical
What neurotransmitter is at the ganglionic synapse in the sympathetic system?
Acetylcholine
What neurotransmitter is at the neuroeffector synapse in the sympathetic system?
Norepinephrine
Sympathetic sweat glands release ___ instead of norepinephrine
Acetylcholine
Preganglionic sympathetic nerve fibers directly innervate the ____, where the neurotransmitter is ___
Adrenal medulla; acetylcholine
What does A1 stimulation cause?
Constriction in the lungs and blood vessels
What does B1 stimulation cause?
Increase HR, contractile force and automaticity
What does chronotropic mean?
Increases HR
What does ionotropic mean?
Increases contractile force
What does automaticity mean?
Increases jumpiness
What does B2 stimulation cause?
Dilation in the lungs and blood vessels