Tournament 3 Flashcards

(56 cards)

1
Q

Part of the gastrointestinal tract which serves as a reserve area for the absorption of drugs that have escaped absorption proximally because of their physicochemical properties or their dosage form

A

LARGE INTESTINE

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2
Q

___________ delivery systems place the drug at or near the receptor site

A

TARGETED

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3
Q

This is the formation of a ring-like structure resulting from the interaction between a partial ring of atoms and a metal

A

CHELATION

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4
Q

The extent of ionization may be described by

A

HENDERSON-HASSELBALCH EQUATION

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5
Q

Part of the transdermal drug delivery system that maintains the drug concentration gradient within the device

A

ADHESIVE LAYER

*formulation matrix

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6
Q

The faster the stomach emptying the

A

higher the plasma drug concentration

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7
Q

Which of the following gives the correct order of decreasing rate of absorption?

A

SOLUTION, SUSPENSION, CAPSULE, TABLET

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8
Q

Lying on the left side _________ rate of gastric emptying

A

DECREASES

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9
Q

The _________ of a single dose of a drug is a function of both the rate and extent of absorption

A

EFFICACY

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10
Q

Capsule shells become brittle at low ______

A

HUMIDITY

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11
Q

In modified release dosage forms, this is the rate-limiting step

A

LIBERATION

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12
Q

The in vitro correlate of drug absorption that indicates the time it takes for a solid dosage form to breakdown into small particles, not necessarily solution

A

DISINTEGRATION

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13
Q

Modified release tablets alter the __________ of drug release

A

RATE OR TIMING

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14
Q

For hydrophobic drugs, excessive particle size reduction does not always lead to faster dissolution rate due to formation of

A

AGGREGATES

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15
Q

In ________, the drug is impregnated into a biodegradable or nonbiodegradable material and is released slowly for localized or systemic effect

A

INSOLUBLE MATRICES

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16
Q

Generally, drug-cyclodextrin complexes

A

ARE MORE WATER SOLUBLE

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17
Q

Particle size is __________ related to surface area

A

INVERSELY

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18
Q

Drug dissolution is described by

A

NOYES-WHITNEY EQUATION

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19
Q

This is the ability of a drug to exist in more than one crystalline form

A

POLYMORPHISM

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20
Q

Transport process which is also described as “cell-eating”

A

PHAGOCYTOSIS

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21
Q

This excipient makes powders adhere to each other and form aggregates

A

BINDER

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22
Q

The rate of gastric emptying is the rate-limiting step in the dosage form

A

SOLUTION

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23
Q

The more complication the formulation of a drug product, the greater the potential for __________ problems

A

BIOAVAILABILITY

24
Q

Usually the _____ form dissolves more rapidly than the hydrated form

25
In conventional oral dosage forms, this is the rate-limiting step
DISSOLUTION
26
The make segments of the gastrointestinal tract differ from one another both anatomically and _____, as well as with respect to secretions and ph
MORPHOLOGICALLY
27
Modified release tablets may sometimes result to ______ problem
DOSE-DUMPING
28
This part of the gastrointestinal tract is where substance like alcohol, barbital, and aspirin are readily absorbed
STOMACH
29
Transport process where drugs are moved by the aid of ATP-dependent pumps
TRANSPORTER PROTEINS
30
Transdermal drug delivery systems contain the drug for _______ absorption after topical application to the skin
SYSTEMIC
31
This is the ration of drug solubility (at equilibrium) in non-aqueous and aqueous solvent
PARTITION COEFFICIENT
32
Better blood supply favors a/an
INCREASE IN ABSORPTION OF THE DRUG
33
Tablets have reduced effective area due to _________
COMPRESSION
34
An increase in the temperature of food __________ rate of gastric emptying
INCREASES
35
Part of the gastrointestinal tract where the epithelial surface area is extraordinarily large because of the presence of villi and microvilli
SMALL INTESTINE
36
Transport process where drugs are moved from the mucosa to the serosa
CARRIER-MEDIATED
37
This is the ability of a drug to exist as optically active stereoisomers or enantiomers
CHIRALITY
38
The rate-limiting step in the bioavailability of a drug is the _________ step
SLOWEST
39
Transport process described by Fick’s Law
PASSIVE DIFFUSION
40
Usually, the amorphous form has a faster dissolution rate than the ______ form
CRYSTALLINE
41
Transport process where drugs are moved uphill against a concentration gradient
ACTIVE
42
Fatty food ________ rate of gastric emptying
DECREASES
43
This is a species formed by the reversible or irreversible association of two or more interacting molecules or ions
COMPLEX FORMATION
44
Which of the following gives the correct order of decreasing rate of absorption?
SOLUTION, EMULSION, SUSPENSION, PELLET
45
Anticholinergic __________ rate of gastric emptying
DECREASE
46
Transport process where drugs or dissolved materials are engulfed by a cell
VESICULAR
47
Modified release tablets are suited for short _________ drugs
HALF-LIFE
48
Tablet coating should break down quickly so as not to hinder the drug’s ____________
BIOAVAILABILITY
49
Transport process where drugs are moved through tight or narrow junctions between cells or transendothelial channels of cells
CONVECTIVE
50
A _________ suspension prolongs gastric emptying, slows down drug dissolution, and decreases absorption rate
HIGHLY VISCOUS
51
This kind of drug can easily cross the membrane of the gastrointestinal tract – NONPOLAR  Most chiral drugs are used as __________ mixtures
RACEMIC
52
Bulky materials in the gastric area tend to empty ______ than liquids
MORE SLOWLY
53
Enteric coating minimizes contact between the drug and the __________ region
GASTRIC
54
This excipient may reduce the wetting of the drug particle
LUBRICANT
55
The contents of a hard capsule should not be subjected to high _______ that reduced the effective surface area
COMPRESSION PRESSURE
56
The most important site for drug absorption in the GI tract
SMALL INTESTINE