Introduction Flashcards

(95 cards)

1
Q

What is the study of the biological effects of chemicals?

A

Pharmacology

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2
Q

In clinical practice, this refers to how chemicals act on living organisms.

A

Pharmacology

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3
Q

Etymology of the word “Pharmacology” and its meaning.

A

“Pharmakon” - drug or poison
“Logos” - study

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4
Q

What are chemicals that are introduced to the body to cause change?

It can be benefiocial or not.

A

Drugs

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5
Q

What is the branch of pharmacology that uses drugs to treat, prevent, and diagnose disease?

Its two key concerns are:
1. The drug effects on the body
2. Body’s response to the drug

A

Pharmacotherapeutics / Clinical Pharmacology

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6
Q

What are the four basic terms in Pharmacology?

A
  1. Drugs
  2. Pharmacology
  3. Clinical Pharmacology
  4. Therapeutics
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7
Q

It is defined as any chemical that can affect living processes.

A

Drugs

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8
Q

What is the study of drugs and their interactions with living systems?

It includes the study of physical and chemical properties of drugs as well as its biochemical and psychologic effects.

A

Pharmacology

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9
Q

What is the study of the history, sources, and uses of drugs as well as the drtug absorption, distribution, metabolism and excretion?

A

Pharmacology

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10
Q

What is the study of drugs in human?

Includes the study of drugs in patients as well as healthy volunteers.

A

Clinical Pharmacology

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11
Q

What is the other term for therapeutics?

A

Pharmacotherapeutics

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12
Q

What is the use of drugs to diagnose, prevent, or treat disease, or prevent pregnancy?

It is the medical use of drugs.

A

Therapeutics / Pharmacotherapeutics

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13
Q

What are the properties of an ideal drug?

Hint: Acronym “SES”

A
  1. Safety
  2. Effectiveness
  3. Selectivity
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14
Q

What property of an ideal drug refers to its ability to elicit the responses for which it is given?

It is the most important property that a drug can have.

A

Effectiveness

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15
Q

What property of an ideal drug is defined as one that cannot produce harmful effects even if administered in very high doses and for a very long time?

A

Safety

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16
Q

What property of an ideal drug is defined as one that elicits the only response for which it is given?

A

Selectivity

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17
Q

What are the additional properties of an ideal drug?

Hint: Acronym “RPEFLCA”

A
  1. Reversible action
  2. Predictability
  3. Easy administration
  4. Freedom from drug interactions
  5. Low cost
  6. Chemical stability
  7. Administration
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18
Q

Identify what property of an ideal drug is being asked

The drug action to subside within an appropriate time?

A

Reversible action

It is important that the drug effects are reversible.

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19
Q

Identify what property of an ideal drug is being asked

The certainty just how a given px should respond?

px - patient

A

Predictability

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20
Q

Identify what property of an ideal drug is being asked

It should be simple to administer. The route should be convenient and the number of doses per day should be low.

A

Ease of administration

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21
Q

Identify what property of an ideal drug is being asked

When the px is taking two or more drugs which can augment or reduce drug response.

A

Freedom from drug interactions

There should be no interactions between drugs taken by px.

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22
Q

Identify what property of an ideal drug is being asked

Should be easy to afford

A

Low cost

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23
Q

Identify what property of an ideal drug is being asked

Some drugs lose effectiveness during storage, others may be stable on shelf but lose effectiveness when put into solution.

A

Chemical stability

Because of chemical instability, stocks of certain drugs must be periodically discarded

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24
Q

Identify what property of an ideal drug is being asked

Dosage size, route and timing of administration are important determinants of drug responses.

Right, dose, right time, right dose.

A

Administration

Poor px compliance and medication errors by hospital staff can result in major discrepancies

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25
What is the most frequent drug administration route in clinical practice? | It is non invasive, less expensive and safest way to deliver drugs
Oral route | PO (per orem) - via mouth
26
# *Identify the administration route* Drugs delivered through this route reach their full strength at the time of administration.
Intravenous route (IV) route | Through px veins
27
# *Identify the administration route* Drugs absorbed through this route are absorbed directly into the capillaries in the muscle and sent into circulation
Intramuscular (IM) route | Through px muscles
28
What sex has a faster Intramuscular drug absorption?
Male
29
# *Identify the administration route* Drug is placed under the tongue where it dissolves. it is administered for local effects. | Faster absorption into the bloodstream than PO but slower than IM and IV
Sublingual route | Under the toungue
30
# *Identify the administration route* Medication held in the mouth against mucous membranes of the cheeck until the drug dissolves. | Should not be chewed, swallowed or placed under the tongue
Buccal route | By cheeks
31
# *Identify the administration route* Medications applied in the skin. | Includes lotion, linaments and ointments
Topical route | On skin
32
What is the science dealing with interactions betwee the chemical components of living systems and the foreign chemicals?
Pharmacodynamics
33
Explain drug actions, wherein drugs work in one of four ways.
1. to replace or act as a substitute 2. to increase or stimulate certain cellular activities 3. to depress or slow cellular activities 4. to interfere the functioning of foreign cells, such as invading microorganisms or neoplasms (chemotherapeutic drugs)
34
What is the ability of the drug to act at specific areas on cell membranes?
Receptor Sites
35
What is the ability of the drug to cause their effects by interfering with enzymes systems that can act as a catalyst for various chemical reactions?
Drug-Enzyme Interactions
36
What is the ability of a drug to attack only those systems found in foreign cells? It affects an enzyme unique to bacteria causing bacterial cell death without disrupting normal human fnctioning.
Selective toxicity
37
What is the study of absorption, distribution, metabolism and excretion of drugs?
Pharmacokinetics
38
Enumerate the four major Pharmacokinetic processes.
1. Drug absorption 2. Drug distribution 3. Drug metabolism 4. Drug excretion
39
What is the term used that refers to the amount of drug that is needed to cause a therapeutic effect? It is considered as the desired dose of the px.
Critical Concentration
40
This is recommended to some drugs that take prolonged period to reach a critical concentration.
Loading dose
41
It is the actual concentration that a drug reaches in the body.
Dynamic equilibrium
42
What are the factors that are involved in Dynamic equilibrium?
1. Absorption from the site of entry. 2. Distribution to active site. 3. Biotransformation (metabolism) in the liver. 4. Excretion from the body.
43
Drugs can be absorbed into cells through various processes: ____________
1. Passive Diffusion 2. Active Transport 3. Filtration
44
What is the major process to which drugs are absorbed into the body? It occurs across a concentration gradient when there is a greater concentration of drug on one side of a cell membrane move to an area of lower concentration.
Passive Diffusion
45
What is the process that uses energy to actively move a molecule across a cell membrane? Often involved in drug excretion in the kidney.
Active Transport
46
What process is commonly used in drug excretion which involves movement through pores in the cell membrane either down a concentration gradient or as a result of the pull of plasma proteins?
Filtration
47
This happens when the drug is taken PO where a large percenage of the oral dose is destroyed at this point and never reaches the tissue.
First Pass Effect
48
A protective system of cellular activity that keeps subtances away from the CNS. Thus, drugs that are not lipid soluble are not able to pass.
Blood Brain Barrier
49
When giving a drug to a breast-feeding mother, the nurse must always check the ability of the drug to pass into the _________.
Breast milk
50
Involves altering the physical and chemical properties of drugs within the body with the help of the enzymes in the liver and lining of the GI tract.
Biotransformation
51
The removal of drug from the body through skin, saliva, lungs, bile, and feces.
Excretion
52
What plays the most important role in drug excretion, where drugs that have been made water soluble in the liver are often readily excreted by this organ?
Kidneys
53
What do you call the time it takes for the amount of drug in the body to decrease to one-half of the peak level it previously achieved?
Half-life
54
What is the term used to describe how a drug or other substance produces an effect in the body?
Mechanism of action
55
It refers to when the medication first begins to take effect.
Onset of medication
56
It refers to the maximum concentration of medication in the body and the client shows evidence of greatest therapeutic effect
Peak
57
It refers to the length of the medication that produces its desired therapeutic effect.
Duration
58
These are **expected/known** undesirable effects of the drug.
Side effects
59
These are **unexpected/unknown** undesirable effects of the drug.
Adverse effects
60
What are the most common side effects of drugs?
1. Nausea 2. Vomiting 3. Diarrhea
61
What is the most common adverse effect of drugs?
Drug allergy
62
It is the desired therapeutic effect.
Primary action
63
It is the primary effect + beneficial or harmful effect.
Secondary action
64
Some pxs have an unusually strong reaction to drugs. | (developed)
Hypersensitivity
65
The body's immune system reacts to a specific drug. | (inborn)
Drug Allergy
66
Enumerate the types of allergies.
1. Anaphylactic Reaction 2. Cytotoxic Reaction 3. Serum Sickness Reaction 4. Delayed Allergic Reaction
67
A severe, immediate allergic reaction that can occur within minutes after exposure to an allergen.
Anaphylactic Reaction
68
Type I allergic reaction.
Anaphylactice Reaction
69
Symptoms can include difficulty breathing, swelling of the throat or tongue, periorbital edema, hives, rapid drop in blood pressure, and potential loss of consciousness. It can be life-threatening if not treated quickly with epinephrine.
Anaphylactic Reaction
70
Also known as Type II hypersensitivity, this reaction involves the destruction of the body’s cells.
Cytotoxic Reaction
71
A type of immune complex hypersensitivity (Type III reaction) that occurs when immune complexes (antigen-antibody complexes) deposit in tissues.
Serum Sickness Reaction
72
A Type IV hypersensitivity reaction that occurs hours to days after exposure to the allergen.
Delayed Allergic Reaction
73
What drug effect includes rash, hives and stomatitis?
Dermatologic reactions
74
What drug effect includes liver injury, kidney, injury and poisoning?
Toxicity
75
What drug effect includes the destruction of the normal flora that protects the body from invasion of bacteria, viruses, fungi, and etc.?
Superinfections ## Footnote Superinfection is a second infection superimposed on an earlier one, especially by a different microbial agent of exogenous or endogenous origin, that is resistant to the treatment being used against the first infection.
76
What drug effect includes bone marrow suppression?
Blood Dyscrasia
77
Enumerate the Nursing Responsiblities.
1. Administering drugs 2. Assessing drug effects 3. Intervening to make the drug regimen more tolerable 4. Providing px teaching about drugs and the drug regimen 5. Monitoring the overall px care plan to prevent medication errors.
78
What are the different sources of drugs?
1. Plants 2. Animals 3. Inorganic products 4. Synthetic sources
79
It is a plant source used for **sedation**.
Opiates
80
It is a plant source used to **treat cardiac disorders**.
Digitalis products
81
A synthetic version of this plant source allows for an accepted form to achieve the desired **therapeutic effect in cancer patients**.
Marijuana leaf
82
These products are used to replace human chemicals that are not produced because of disease or genetic problems.
Animal products
83
Product from **pancreas of cows and pigs** used as tx for diabetes.
Insulin
84
What is the process of altering the DNA to produce a substance?
Genetic engineering
85
What source includes salts of various elements that can have therapeutic effects in the human body?
Inorganic products
86
What inorganic product is used to **decrease gastric acidity**?
Aluminum
87
What inorganic product is used for **prevention of dental cavities, prevention of osteoporosis**?
Flouride
88
What inorganic product is used as **tx of iron deficiency anemia**?
Iron
89
What inorganic product is used as** tx of rheumatoid arthritis**?
Gold
90
These sources include the use of genetic engineering to alter bacteria to produce chemicals that are therapeutic and effective.
Synthetic sources
91
These sources include altering chemicals with proven therapeutic effectiveness to make it better
Synthetic sources
92
A term used in drug evaluation where chemicals that may have therapeutic value and are tested on animals. 2 purposes: To determine whether they have the presumed effects in living tissue To evaluate any adverse effects the chemical lacks therapeutic activity when used with living animals.
Preclinical trials
93
What phase uses healthy human volunteers to test the drugs  where trials are performed by specially trained clinical investigators?
Phase 1 Studies
94
What phase allows clinical investigators to try the drug in pxs who have the disease that the drug is meant to treat?
Phase 2 Studies
95
prescribers observe px very closely for any adverse effects. prescribers ask pxs to keep journals and record any symptoms they experience. prescribers then evaluate the reported effects to determine whether they are caused by the disease or by the drug. information is collected and shared with the FDA.
Phase 3 Studies