PRINCIPLES OF PHARMACOLOGY Flashcards

1
Q

These factors alter?
-the drug form (tablet, capsule, sustained release, liquid)
- Route of administration
-Changes in Liver metabolism caused by dysfunction.
-G I mucosa and motility.
-Food and drugs
-Solubility: Drugs that are fat soluble are absorbed faster than water-soluble drugs.

A

Bioavailability

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2
Q

Average weight for drugs is approximately ___ lbs

A

150

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3
Q

DD 1289

A

DOD Prescription

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4
Q

NAVMED 6710/6

A

Poly-prescription

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5
Q

Controlled substances are only written on?

A

DD 1289

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6
Q

Prescriptions are written on pencil or ink?

A

Ink

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7
Q

Liver disease may affect ability to_______

A

metabolize or detoxify a drug

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8
Q

What is required on an RX

A

-pt’s full name
-date of RX
-pt DOB
-full name of drug, form of drug, dosage/strength in metric, qty to dispense. write generically
-directions to pt
-provider sig
-refill auth

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9
Q

The IDC on independent duty is not required to use a DD1289 for prescribing drugs other than?

A

Controlled drugs
(unless directed by CO or higher authority)

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10
Q

General Principles of pharmacology

A

-The factors that affect the actions of drugs
-Factors that affect drug reactions
-various types of rug interactions
-factors influencing drug response

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11
Q

Absorption

A

The transfer of the drug from the body fluids to the tissues

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12
Q

What route of drug administration produces the most rapid response
than any other method

A

IV

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13
Q

Pinocytosis

A

Cells engulf the drug particle across the cell membrane. pack man…

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14
Q

Diffuse across a membrane from area of
higher concentration to an area of lower concentration

A

Passive absorption

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15
Q

Carrier molecule such as a protein or enzyme actively moves the drug across the membrane.

A

Active absorption

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16
Q

Drug levels in blood to produce desired effect.

A

Therapeutic effect

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17
Q

Chemical reaction by with liver converts drug to inactive compound

A

Metabolism

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18
Q

A patient with liver disease may require a ______dose of a
medication that is metabolized by the liver or a _____
medication that is not metabolized by the liver.

A

Lower, Different

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19
Q

Elimination of drugs from the body.

A

Excretion

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20
Q

Metabolism occurs where?

A

Liver, Kidneys, lungs, plasma, and intestinal mucosa

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21
Q

Time required for the body to eliminate 50% of the drug.

A

Half - Life

22
Q

_____, _______, and old age can increase the half-life
increasing risk of toxicity.

A

Kidney, liver disease

23
Q

Drug’s actions and effects within the body

A

Pharmacodynamic

24
Q

2 parts of pharmacodynamics

A

(1) Primary or desired effect.
(2) Secondary effects (side effects) – desired or undesired.

25
A compulsive need to use a substance repeatedly to avoid mild to severe withdrawal symptoms.
Physical dependence
26
A compulsion to use a substance to obtain a pleasurable experience.
Psychological dependence
27
A genetically determined abnormal response to normal doses of a drug.
Pharmacogenetic disorder
28
A specialized macromolecule that binds to the drug molecule, altering the function of the cell and producing the therapeutic response.
Receptor
29
Pregnancy Drug Rating A
Controlled Human studies show no risk
30
Alteration of cell to achieve the desired response
Therapeutic Response
31
Drug that binds with a receptor to produce the therapeutic response
Agonist
32
Drug binds to receptor stronger than the agonist thus producing no pharmacologic effect Ex: Narcan vs morphine
Antagonist
33
Undesirable drug effect
Adverse reaction:
34
A drug reaction that occurs because the individual's immune system views the drug as a foreign substance.
Allergic reaction
35
Any unusual or abnormal reaction to a drug that a patient can have, that do not occur in the vast majority of patients taking the same drug.
Drug idiosyncrasy
36
A decreased response to a drug, requiring an increase in dosage to achieve the desired effect.
Drug tolerance
37
A drug effect that occurs when the body has not fully metabolized a dose of a drug before the next dose is given
Cumulative drug effect
38
A harmful drug effect if it is delivered in high dose or when blood concentration levels exceed therapeutic level (as seen in patients with Liver or Kidney disease)
Toxic
39
Drug Toxicity May be reversible or irreversible depending on
organ/tissue damage
40
The dissolution of a drug. Usually applying to the breakdown of tablets(Delayed release)
Pharmaceutic phase
41
A reaction that occurs when the combined effect of two drugs is equal to the sum of each drug given alone.
Additive drug reaction
42
A drug interaction that occurs when drugs produce an effect that is greater than the sum of their separate actions
Synergism
43
When one drug interacts with or interferes with the action of another drug. Ex: Antacid with oral tetracycline decrease effectiveness of tetracycline.
Drug Interactions
44
When one drug interferes with the action of another, causing neutralization or a decrease in the effect of one drug. Ex: Protamine sulfate completely neutralizes the effects of heparin.
Antagonist Drug Reaction
45
Drug given orally, food may impair or enhance its absorption. -ex: Proton Pump Inhibitor should be taken 1 hour before meals.
Drug - Food Interactions
46
Pregnancy Drug Rating B
No evidence of risk in studies (animal studies)
47
Pregnancy Drug Rating C
Risk cannot be ruled out
48
Pregnancy Drug Rating D
Positive evidence of risk benefits may outweigh the risk
49
Pregnancy Drug Rating X
Contraindicated in pregnancy
50
Women require smaller dose due to differences in ____ and _____ compared to men
fat and water ratio