The Finny- PHARM Flashcards
What is pharmacology?
Study of drugs that alter functions of living organisms
• Includes pharmacotherapy, pharmacokinetics, pharmacodynamics
Which health care providers are involved in the management, distribution, and education of pharmacology?
Doctors
Dietitians
Pharmacists
PAs
NPs
Nurses
RTs
CNAs
4 major concepts that assist in understanding pharmacology
-Nursing management of drug therapy
-Medication
-Core drug knowledge
-Core patient variables
What is core drug knowledge
Pharmacotherapeutics
Pharmacokinetics
Pharmacodynamics
Precautions/contraindications
Drug interactions
adverse/side effects
Patient/family teaching
What are the core patient variables
Culture
Health status
Inherited traits
Life style
Diet
Life span
Environment
Habits
Gender
CHILD LEHG
What is nursing management of drug therapy
Education and safety
How do we maximize therapeutic effects
Promote absorption
Appropriate time
Lab values
How do we minimize adverse effects
Modify admin
Allergies
Contraindications
Safety checks
Assess pt
Lab values
Adverse effects
DC/withhold
MAC SALAD
Sources/ types of medications
Animal
Plant
Minerals
Synthetic
Semi-synthetic
What are the 3 classifications of drug nomenclature
therapeutic
physiologic
chemical
What classification is categorized by the disease state it is used to treat
Therapeutic classification
Which classification is categorized by the drugs MOA
Pharmacologic
Which drug names are lowercase
generic
Which drug names are uppercase
Brand-Trade names
What is the USP-NF
The United States Pharmacopeia - National Formulary
What is the purpose of the USP-NF
Sets the standards for drugs / reviews drugs
Not a government agency
What information about drugs should be included during pt teaching?
Drug name
Reason drug was prescribed
Intended effects
Adverse/ side effects
7 parts of a med order
Pt name
Order date/time
Name of drug
Dosage
Route
Frequency
HCP signature
7 rights of med administration
Right:
Pt
Med
Dose
Route
Time
Reason
Documentation
What is Pharmacotherapeutics
Achievement of the desired therapeutic goal from drug therapy
The indication for giving the drug- right reason
What is Pharmacokinetics
Effects of the BODY on the drug
absorption
distribution
metabolism
excretion
What is Pharmacodynamics
The effects of the DRUG on the body
Variables that affect drug action
Toxicology
What is enteral
By way of the intestines
What is Parenteral
By way other than the intestines
What is absorption
movement of the drug from the site of administration into the bloodstream
What factors affect absorption
Dosage
Route
GI Function
Lipid solubility
Blood flow
Surface area
pH
Food
Dr. GLBS fish food
What route is absorbed faster than IM and Subcut
IV
Geri pH is
more alkaline
Geri GI motility is
Slowed
Reduced blood flow
What is distribution
Movement of drug into cell
What factors affect distribution
Tissue availability
Blood flow
Protein binding
Solubility
Does the blood brain barrier have a low or high selectivity
Highly selective
Geris lean body mass is
Decreased
Geris fat is
Increased
Geris body water content is
Reduced
Geris protein binding sites are
Reduced
Geris BBB is
Less effective
What is metabolism
Conversion of the drug into another substance or substances
Metabolites
What effect limits drugs effect due to break down by liver
Hepatic first pass effect
What INCREASES metabolism
Inducers
What DECREASES metabolism
Inhibitors
Geris liver is
Decreased in size/ mass
Decreased blood flow- decreased metabolism
What is excretion
Removal of the drug
What is clearance
Rate of disappearance
Both renal and hepatic
Geris renal filtration is
Decreased- reduced blood flow/ decrease in nephrons
What is half life
Time it takes for 50% of drug to be eliminated
Protein binding
60-89%
Moderate
Protein binding
Above 89%
High
Protein binding
Below 30%
Low
The relation between the effective dose and lethal dose
Therapeutic index
In between peak and trough
Therapeutic index
Adverse effect can happen if there is not enough_____
for drugs to attach to
Albumin
Po drugs absorb where
small intestine
What is an agonist
Promote function
Stimulate the cell to act
What is an antagonist
Block function
Block something else from attaching to and causing an effect
Antidotes
What factors contribute to distribution
Protein binding
Blood flow
Tissue availability
Drugs ability to leave the body depends on what
Protein binding
What factors affect metabolism
First pass effect
Inducers
Inhibitors
Liver damage/aging
Name some inhibitors
Benadryl/ grapefruit
Name some inducers
Tobacco/ St. John’s wort
A damaged liver causes what
High levels of active drug / toxicity
The main mechanism drugs use to cause their effect on the body
Binding with receptors
What is the study of biological, chemical, physiologic interactions of a drug in the body
Pharmacodynamics
What is receptor theory
Drugs exert their effects by binding with receptors
What is a Physiochemical reaction
Binding either stimulates or inhibits normal cell functions
(Agonist vs. antagonist)
Direct
Describe changes in the permeability of cell membrane to one or more ions:
Ion channels open or close
(Calcium channel antagonists)
Direct
Drugs that modify the synthesis, release, or inactivation of neurohormones that regulate physiologic processes
Acetylcholine
Norepinephrine
(Indirect)
Non receptor drugs
Antacids- act chemically
Anticancer Drugs- structurally similar to nutrients required by the body; interfere with normal cell function
Osmotic diuretics- increase osmolarity
Metal chelating agents- combine with toxic metals
Variables that affect drug action
Potency
Serum drug level
Therapeutic index
Efficacy
Maintenance vs. loading dose
MEC
P STEMM
Drug-diet admin times
30 mins before or after meal
Specific drugs: 1hr before or 2 hrs after
What are additive effects
Combine to create a bigger effect than what was originally desired
What is synergism
Help each other produce the desired effect
What is displacement
When drugs that are high protein bound fight compete for protein binding
One drug displaces another
Pt related variables
Preexisting conditions
Ethnicity
Psych factors
Genetics
Weight
Age
Gender
PEP G SWAG
What occurs with to much therapeutic effect
Adverse effects
What are adverse effects
Undesired response to a drug
What drugs have adverse effects
All drugs
What is the strongest FDA warning
Black box warning
Toxicity results from what
Excessive amounts of a drug
May damage body tissue
Name different types of toxicity
cardiotoxicity
ototoxicity
ocular damage
immunotoxicity
hepatotoxicity,
nephrotoxicity,
neurotoxicity
Subcut landmarks
the upper posterior area of the arm
Anterior aspects of the thighs
abdomen 2 inches away from the navel
lateral abdomen
Subcut needle length and gauge
25-30 G
3/8” - 1”
IM landmarks
IM needle length and gauge
20-25 G
5/8”-1.5”
3 purposes for intra dermal injections
Skin testing (drug/allergy sensitivities)
Determine presence of microorganism
Local anesthesia
Intradermal landmarks
Lightly pigmented, thinly keratinized, hairless skin (thinner skin)
Ventral forearm
Outer aspect of the upper arms
Scapular area of back
Upper chest
Intradermal equipment
TB or 1mL syringe
1mL calibrated in 0.01 increments (usually 0.01 to 0.1mL injected)
TB syringe most common
26 -27 G
3/8” - 5/8”
How do you hold the skin for an intradermal injection
Taut
What angle do you insert the needle during an intradermal injection
5-15 degrees
Which way should the bevel face during an intradermal injection
Up
What should be visible during an intradermal injection
The needle should be visible under the skin
What is a bleb or wheal
The bubble that forms during an intradermal injection
How should you inject & remove the needle during an intradermal injection
Slowly
How long should you massage the area after an intradermal injection
NEVER
What is pain
A sensory and emotional experience associated with actual or potential tissue damage
Whatever the patient says it is
Pain is based on what
The individuals previous experience and social, environmental, and cultural influences
What are noiceptors
Afferent neurons
Place where the sensation of peripheral pain begins
Where are nociceptors found
Skin
Muscle
Connective tissue
What are the 2 types of nociceptors
A-Delta fibers
C-fibers
What fibers are small
A-Delta
Which fibers respond to mechanical stimuli
A-Delta
Which fibers sense dull pain
C-fibers
Which fibers sense sharp pain
A-Delta fibers
Which fibers sense burning pain
C-fibers
Which fibers respond quickly to acute pain
A-Delta fibers
Which fibers are myelinated
A-Delta fibers
Which fibers sense pinching pain
A-Delta fibers
Which fibers sense stinging pain
A-Delta fibers
Which fibers are slow
C-fibers
Which fibers are unmyelinated
C-fibers
Which fibers respond to mechanical stimuli
A-Delta fibers
Which fibers respond to mechanical chemical stimuli
C-fibers
Which fibers respond to hormonal stimuli
C-fibers
Which fibers respond to thermal stimuli
C-fibers
Which fibers sense aching pain
C-fibers
Which fibers transmit sensations with touch or temp
A-Delta fibers
What med is used for fever pain and inflammation
Ibuprofen
What med is used for fever, mild pain, and has no anti-inflammatory actions
Acetaminophen
Para-aminophenol derivative
Which med is 99% protein binding
Ibuprofen or acetaminophen
Ibuprofen
High doses of acetaminophen can cause what
Compromised renal function
What is the antidote for acetaminophen
Acetylcysteine
What can increase risk for bleeding in patients taking ibuprofen
(Drug-natural)
Ginger
Garlic
Ginko
Chamomile
What pain med is the best choice for those on blood thinners
Acetaminophen
What med is the best choice for those with hypersensitivity to aspirin, NSAIDs, and are intolerant to GI
Acetaminophen