Noha 3 Flashcards
(112 cards)
1
Q
Beware of sun exposure in the following cases
A
.
2
Q
Solar radiation encompasses electromagnetic spectrum
A
.
3
Q
Ozone layer absorb
A
.
4
Q
The radiation strike earth is
A
.
5
Q
Type of Iv radiation
A
.
6
Q
100-290
A
.
7
Q
290-320
A
.
8
Q
320-400
A
.
9
Q
Penetrate deeper layer
A
.
10
Q
Limited to superficial skin layer
A
.
11
Q
Immediate tanning
A
.
12
Q
Skin cancer
A
.
13
Q
Delayed tanning
A
.
14
Q
High UV energy
A
.
15
Q
Harmful to living
A
.
16
Q
Removed from atmosphere
A
.
17
Q
Germicidal application
A
.
18
Q
Type of sunscreen agent
A
.
19
Q
PABA
A
.
20
Q
Salicylate
A
.
21
Q
Cinnamte
A
.
22
Q
Benzophenone
A
.
23
Q
Anthranilate
A
.
24
Q
Dibenzoylmethanes
A
.
25
Camphor derivative
.
26
Maximum absorption at 283
.
27
Drawback of papa
.
28
Health benefit of paba
.
29
Hydroxyl and carboxyl ester group
.
30
Low Iv absorber
.
31
9 c atoms attached to carboxlic group
.
32
Available as 2 isomer
.
33
High photostability
.
34
Aromatic ketone
.
35
Strong molar extinction
.
36
Excellent safety and emollients
.
37
Physical sunscreen agents
.
38
Provide broad spectrum protection against UVA and UVB
.
39
The only FDA approved physical Uv filters
.
40
Advantage of zinc oxide
L
41
30 and 200nm
.
42
Help wound heel more quickly
.
43
Oil free and won’t clog pores
.
44
It is one of the most effct sun protectors
.
45
Block both short and long UVA and all UVB
.
46
Advantage of TiO2
.
47
10-100nm
.
48
Does not provide protection for long UVA
.
49
Great choice for causal dilly sun exposure
.
50
Prevent and minimize sunburn and suntan
;
51
40-60nm
.
52
The —— enable perfect alignment and better deflection compared to —-
.
53
Sensory enhancers
.
54
Booster or film former
.
55
Imrpove aesthetic
.
56
Silicon and powder
.
57
Rheology modifier
.
58
Sodium acrylate copolymer
.
59
Hydrogenated polydecene
.
60
PPG-1 trideceth-6
.
61
Vechile of sunscreen
.
62
Enhance effctivty and ability to remain on skin
.
63
Wrong vechile act as
.
64
The solven may modify the sunscreen Bez of its polarity >>
.
65
Effect on UV spectrum
.
66
Solubilization effects
.
67
Octinoxate
.
68
Salicylate
.
69
Agglomeration of sunscreen may occur
.
70
Dcrease conc of sunscreen and SPF
.
71
Sunscreen formulation
.
72
Criteria for optimization sunscreen formulation
.
73
The majority of sunscreen are
.
74
Cream and lotion are similar in
.
75
Difficult to make water resistant
.
76
Provide maximum sunscreen efficiency
L
77
Phase inversion emulsion
.
78
The emulsion type depend on
,
79
Examples of phase inversion
.
80
Ethoxylated surfactant
.
81
Inversion process are possible via
L
82
Visually elegant product
.
83
Characterized by clarity and viscosity
.
84
Composed of single phase
.
85
Gel
.
86
Example of gel
;
87
Poor vechile and poor film forming ability
.
88
Leave thin and transparent film which lower the spf
.
89
Shift the maximum wave length to
.
90
Hold your breath while using it
L
91
Cause lung cancer and respiration toxicity
.
92
Evaluation procedures for sunscreen product
.
93
The ration of the time of uv exposure to produce detectable erthyme in sunscreen to that time for unprotected skin
.
94
Transpore and vitroskin
.
95
Animal model have been used
.
96
Is cover with light prof adhesive foil
.
97
Usage of SPF is lower than stated on the label
.
98
Causes erthema after a large dose
.
99
Decrease UVA dose to achieve a detectable difference in erythema
.
100
8-methoxypsoralen
.
101
Advantage of PPF
.
102
Limitations of PPF
.
103
Other assy to determine UVA protection
.
104
Reflect how effectively the advertise degree of protection is maintained under adverse conditions
.
105
Is declared as water resistant if it maiantain original SPA for two 20-min
.
106
If it retain its protective integrity after four 20-min i\
.
107
FDA regulate sunscreen as
.
108
In Europe sunscreen are considered ...
/
109
The product category designation PCD are
.
110
Terms that are no longer permitted
.
111
290-777
.
112
40-60
.
