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1

What is a drug?

Any chemical substance that produces a biologic response in a living system

2

Drug are

Chemical substances that are NOT required for normal maintenance of body function.
Aid in the diagnosis, treatment, or prevention of disease

3

After a drug has been administered it is called

Medication

4

Pharmacology

The science concerned with the origin, nature, effects and uses of drugs.
The study of drug actions and drug interactions with living organisms.

5

Classified system of drug names

Chemical Name
Generic Name
Trade Name

6

Chemical Name


Identifies the actual chemical structure of the drug
Often complex
Not important to the technologist

7

Generic name

Name given to the drug before its official approval for use
One generic name for each drug
Simpler name
Derived from chemical name
Never capitalized
Usually best known by

8

Brand Name

Name given to a drug manufactured by a specific company
Short & easy to remember
Name may or may not reflect chemical structure of the drug

9


Trademark is

Brand name, trade name or proprietary name

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Chemical sample

2-diphenylmethoxy-N,N-dimethyle-thylamine

11

Generic Sample

Diphenhydramine

12

Brand sample

Benadryl

13

Classification -Drug Action

Function
Drug families
Similar chemical actions are group
Analgesics
Antiinflammatories
Not totally reliable
One drug may have several different physiologic effects on the body

14

Drug Forms

The manner in which the chemical agent is transported into the human body
Single drug available in different forms to facilitate delivery and action under a variety of conditions

15

Drug form samples

Tablet
Capsule
Inhalant
Suppository
Solution
Suspension
Transdermal patches

16

4 Routs of drug

Oral
Topical
Sublingual
Parenteral

17


Oral rout

Most common
Patient must be conscious
Absorption time is longer

18

Topical rout

Directly onto skin
Absorbed into bloodstream
Transdermal patch

19


Sublingual rout

Under the tongue and not swallowed
Rapid absorption for immediate onset

20


Parenteral rout

Administered by injection or by a route other than the GI tract
Common routes

21

Relieve pain without causing a loss of consciousness

Analgesics

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2 groups of Analgesics

Nonnarcotic (nonopioids)
Narcotic (opioids)

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Nonnarcotic (nonopioids)

Mild to moderate pain
Acetaminophen (Tylenol), Motrin, Advil

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Narcotic (opioids)

Moderate to severe pain
morphine, oxycodone, demerol

25

Act on the CNS to produce a loss of sensation

Anesthetics

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2 types of Anesthetics

General anesthetics
Local anesthetics

27

General anesthetics

Produce muscle relaxation and loss of consciousness – surgical procedures
propofol (Diprivan)

28

Local anesthetics

Block nerve conduction from an area of the body to the CNS

29

Antianxiety

Used in the treatment of anxiety
Act on the CNS to calm or relax the anxious patient
diazepam (Valium); lorazepam (Ativan)

30

Anticoagulants

Inhibit clotting of the blood or increase the coagulation time
Use primarily to prevent or treat thromboembolic disorders
Heparin (IV)
Coumadin (Oral)