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EMS Pharmacology
Basic Pharmacology for paramedics
71
Pharmacology
Not Applicable
12/18/2012

Additional Pharmacology Flashcards

 


 

Cards

Term
what are the 3 names that each drug has?
Definition

-chemical

-generic

-brand

Term
Name 4 types of actions in which a drug will interact with the body?
Definition

- Binding to a receptor site

-changing the physical properties of cells

-chemically combining with other chemicals

-altering a normal metabloic pathway

Term
Define Pharmacokinetics
Definition
how drugs are transported in and out of the body
Term
Define Pharmacodynamics
Definition
how a drug interacts with the body to cause its desired effects
Term
Define enternal drug administration
Definition
delivery of medications via absorbtion through the GI tract
Term
define parenternal administration
Definition
delivery of meds through any route outside of the GI tract. (nebulized, IV, topical)
Term
Define the term Agonist
Definition
drug that binds to a receptor and causes it to initiate the expected response
Term
Agonist-antagonist
Definition
drug that binds to a receptor and stimulates some of its effects but blocks others. (only a partial agonist)
Term
what is the onset of action?
Definition
the time from when a drug is administered until it reaches its minimum effective concentration
Term
define minimum effective concentration
Definition
the minumum amount of a drug needed to cause its desired effect
Term
what is an antagonistic drug?
Definition
Drug that binds to a specific receptor site but does not initiate the expected response
Term
what is a competitive antagonist?
Definition
a drug that will bind to a receptor site and prevent another drug from binding to the receptor site
Term
what is a non-competetive antagonist?
Definition
a drug that binds to a receptor site and deforms it to prevent an agonist from fitting and binding 
Term
What is an anasthetic?
Definition
a drug that causes loss of sensation to touch or pain
Term
what is an analgesic?
Definition
drug that decreases the sensation of pain
Term
what is an adjunct medication?
Definition
a drug that is administered to enhance the effect of another drug
Term
Define Biological Half-life
Definition
amount of time it takes for the body to clear one half of a drug
Term
what is the drug response relationship?
Definition
Correlation of different amounts of adrug to a clinical response
Term
List at least 4 factors that affect the drug response relationship 
Definition

-age

-body mass

-sex

-environment

-genetics

-psychology

-time of administration

Term
Define sedation
Definition
a state of decreased anxiety and inhibitions
Term
with regards to electrical charges, how does a neuron transmit an impule?
Definition
the resting state of neurons is negative. in order to conduct an impulse, the neuron must become posotive, aka depolarize.
Term
what is Gammaaminobutyric acid (GABA)? 
Definition

it is the primary inhibitory neurotransmitter in the CNS

 

Term
explain how GABA functions in the CNS
Definition

GABA receptors are dispersed greatly throughout the CNS and are located on chloride ion channels. when GABA combines with these receptors, the chloride channels open, and chloride, which is a negative ion, rushes into the neuron and hyperpolarizes it. making the neuron difficult to depolarize, thus depressing the CNS

 

Term
What class of drugs do Barbiturates, and Benzodiazepines belong to?
Definition
Antianxiety
Term
explain the mechanism of action of benzodiazepams and barbiturates
Definition
they increase the GABA receptors potential for binding with GABA
Term
Why do barbiturates have a higher potential for overdose than benzodiazepines?
Definition
barbiturates in high doses can mimic GABA's effects and thus can have unlimited effects. Benzodiazepines only increase GABA's effectiveness, thus the amount of GABA present limits their effects
Term
What class of drugs Dilantin (phenytoin), and Tegretol (carbamazepine) belong to?
Definition
Antiseizure/Antiepileptic
Term
Explain the mechanism of action of Dilantin and Tegretol
Definition
Both inhibit the influx of sodium into the neuron, thus decreasing the neurons ability to depolarize and transmit  overactive nerve impulses 
Term
What are neuroleptics?
Definition
antipsychotic medications
Term
What are the major illnesses treated with Neuroleptics?
Definition

-Bipolar disorder

-depression

-Schizophrenia

Term
Name the 2 main classes of neuroleptics
Definition

-Phenothiazines

-Butyrophenones

Term
explain the mechanism of action of neuroleptics
Definition
neuroleptics block dopamine receptors in the CNS. excess release of dopamine has been linked to psychotic episodes
Term
List the three major classes of antidepressants
Definition

-Tricyclic antidepressants (TCA's)

-Selective seretonin reuptake inhibitors (SSRI's)

-Monamine oxidase inhibitors (MAOI's)

Term
What is a Parasympathomimetic drug?
Definition
Drug that causes effects that mimic the parasympathetic nervous system. Also known as a cholinergic
Term
What is a Parasympatholytic drug?
Definition
A drug or other substance that blocks or inhibits the effects of the parasympathetic nervous system. Also known as an anticholinergic drug
Term
What are the common side effects of Cholinergics?
Definition

-Salivation

-Lacrimation

-Urination

-Defacation

-Gastric motility

Emesis

Term

List the 2 Parasympathetic acetycholine receptors

Definition

-Muscarinic

-Nicotinic

Term
What is atropine? What is its primary use?
Definition

-Atropine the most common anticholinergic drug

-used for treatment of SLUDGE symptoms from organophosphate poisoning

Term
List the 4 main classes of antihypertensives
Definition

-ACE inhibitors

-Beta blockers

-Calcium channel blockers

-Diuretics

Term
Describe ACE inhibitors mechanism of action
Definition
ACE inhibitors prevent the conversion of angiotensin I to angiotensin II. angiotensin II is a very potent vasoconstrictor and decreasing the amount of it circulating, will yield lower blood pressure
Term
What is the suffix for the generic names of ACE inhibitors?
Definition
-pril
Term
Describe Beta blockers mechanism of action
Definition
Beta blockers are a competetive antagonist. they bind with the beta 1 receptors and prevent sympathetic stimulation of the heart
Term
What is the suffix for the generic names of Beta blockers?
Definition
-lol
Term
Describe Calcium Channel blockers mechanism of action
Definition
Calcium is required for muscle contraction. when it enters muscle cells through calcium channel, muscle contraction ensues. blocking calcium channels prevents arterioles smooth muscle from contracting
Term
What is the suffix for Calcium Channel blockers generic names?
Definition
-pine
Term
what is a diuretic?
Definition
a drug used to reduce circulating blood volume by increasing urine output
Term
list the three main categories of Diuretics
Definition

- loop diuretics

- thiazides

- pottasium sparing diuretics

Term

-Each of the three main classes of diuretics increase urine output, but how does their mechanism of action differ?

-which section of the nephron does each afect? (bonus points)

Definition

they affect a certain part of the nephron.

-loop diuretics: ascending loop of henle

-thiazides: distal convoluted tubes

-potassium sparing diuretics: distal convoluted tubes

Term
What is the EMS drug of choice for rapid treatment of hypertension?
Definition
nitroglycerin
Term
In conjunction with Nitroglycerin, what drug is also used to treat patients with cardiac chest pain?
Definition
Acetylsalicylic acid (Aspirin)
Term
how much greater is the chance of survival if a cardiac chest pain patient recieves ASA, versus if they didn't?
Definition
30% increase in chance of survival
Term
What is a hemostatic agent?
Definition
drugs that promote hemostasis (the stoppage of bleeding)
Term
What are the three classes of drugs used to treat thrombi?
Definition

- Antiplatelets

- Anticoagulants

-Thrombolytics

Term
What are antiplatelet drugs?
Definition
drugs that decrease the aggregation of platelets
Term
What are anticoagulant drugs?
Definition
drugs that interupt the coagulation cascade
Term
what are thrombolytic drugs?
Definition
drugs that act directly on thromi to break them down
Term
what is the most common anticoagulant drug?
Definition

- warfarin (generic name)

- Coumadin, Jantoven, Marevan, Lawarin, Waran (brand names)

Term
what are the most common thrombolytic drugs?
Definition

- streptokinase (Streptase)

- reteplase (Retevase)

Term
what is an antihyperlipidemic drug?
Definition
drug used to treat high blood cholesterol
Term
What are the effects of excessive exposure to parasympathomimetic drugs (cholinergics)?
Definition

Salivation

Lacrimation

Urination

Defacation

Gastric motility

Emesis

Term
What is the most common anticholinergic drug?
Definition
Atropin
Term
Organophosphate poisoning over stimulates the parasympathetic nervous system, or sympathetic nervous system?
Definition
parasympathetic nervous system
Term
What is the most common suffix for antifungal medications?
Definition
- zole
Term
what are the two most common suffixes for antiviarl medications?
Definition

- ir

- ine

Term
What is an NSAID?
Definition
Nonstreroidal anti inflammatory drug
Term
What is an antiemetic?
Definition
drugs that prevent vomiting
Term
list 4 common narcotics
Definition

- morphine (Roxanol)

- hydromorphone (Dilaudid)

- Codeine

- hydrocodone (Vicoden)

- mederidine (Demerol)

- oxycodone (oxycontin)

- methadone

Term
Name the 4 opioid receptors
Definition

- delta

- kappa

- mu

-nociceptin

Term
List the 4 most common benzodiazepines
Definition

- alprazolam (Xanax)

- diazepam (Valium)

- clonazepam (Klonopin)

- lorazepam (Ativan)

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