L8 L9 Flashcards

1
Q

The most important route for execretion is

A

Kidney or Urine

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2
Q

Drugs are eliminated from the body either …… or……

A

Unchanged or Converted to metabolites

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3
Q

The time taken to reduce the
plasma drug concentration by half

A

Elimination Half Life

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4
Q

The amount of drug
cleared from the body per
unit of time

A

Drug clearance

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5
Q

Drugs must be What to be
eliminated from the body?

A

Polar

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6
Q

Other non important routes for clearance are?

A

Feces (Intestine or bile)
Lungs
Breast milk
sweat, saliva, tears, hair, and skin

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7
Q

What is excreted by lungs

A

Anesthetic gases

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8
Q

What stages affects the half life?

A

Metabolism and Excretion

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9
Q

What are the Clinical situations resulting in changes in drug half-life

A

diminished renal or hepatic blood flow
Liver faliure of metabolism
Kidney failure of excretion

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10
Q

The patient with issues in the half life duration require?

A

A decrease in dosage or less frequent dosing intervals

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11
Q

Whenever the drug inhibits metabolism or in hepatic insufficiency that will cause

A

cirrhosis

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12
Q

Decrease in excretion causes

A

Renal diseases

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13
Q

Which routes Absorption plays an important role in

A

oral, inhalation, and dermal exposures

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14
Q

The two absorption kinetic parameters of concern are:

A

1- The rate of absorption
2- The extent of absorption (or bioavailability)

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15
Q

The rate of absorption detects what

A

The onset (The start of the action of the drug)
How fast it absorbs

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16
Q

When a medicine is administered via non-intravenous it’s bioavailability generally decreases due to?

A

due to incomplete absorption and first-pass metabolism
or may vary from patient to patient

17
Q

Bioavailability is one of the essential tools in which of the following
- pharmacodynamics
-pharmacokinetics
-Metabolism

A

pharmacokinetics

18
Q

What should be considered when calculating dosages for non-intravenous routes of administration

A

Bioavailability

19
Q

What might increase the volume of distribution

A

Renal or hepatic failure

20
Q

Why renal failure causes an increase in Vd

A

due to fluid retention

21
Q

Why hepatic failure causes an increase in Vd

A

due to altered body fluid and plasma protein binding

22
Q

Vd is decreased when

A

There is dehydration

23
Q

Usefulness of Vd is?

A

Calculation of the loading dose of a drug

24
Q

Clearance is also refered to as

A

The rate of excretion

25
Q

Trough level of a drug

A

lowest blood level of this drug just before next dose (near the end of its half life)

26
Q

Onset of drug action

A

The time it takes for a drug to elicit a therapeutic response

27
Q

An initial high dose of a drug given at the onset of therapy if a therapeutic concentration must be achieved rapidly

A

Loading dose

28
Q

Loading dose formula

A

V*Desired C/ F

29
Q

The dose of the drug required per unit time to maintain a desired steady state level in plasma to sustain a specific
therapeutic effect

A

Maintenance dose

30
Q

The process that side effects of drugs are misdiagnosed as symptoms of another problem, resulting in further prescriptions

A

Prescription cascade

31
Q

Prescription cascade is a pharmacological example of a

A

feedback loop

32
Q

cascades can be reversed through

A

deprescribing

33
Q

The use of numerous medications at the same
time

A

Polypharmacy

34
Q

POLYPHARMACY MORE THAN 3 MEDICATION AT THE SAME TIME
T/F

A

False/5