27 - Occupational Skin Disease Flashcards

1
Q

Exposure classification of occupational skin diseases

A
  1. Chemical
  2. Mechanical
  3. Physical
  4. Biologic
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2
Q

Vast majority of occupational skin diseases are attributed to _____ agents

A

Chemical

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3
Q

Occupational contact dermatitis comprises _____% of occupational skin diseases

A

90-95

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4
Q

Highest total skin disease cases found in

A

Education and health services

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5
Q

Highest incidence rate of skin diseases found in

A

Natural resources and mining industries

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6
Q

Vast proportion of occupational skin diseases occur on the

A

Hands (80%)

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7
Q

Most common occupational exposure leading to contact dermatitis

A

Wet work tasks

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8
Q

ICD presentations

A
Acute
Irritant reaction 
Cumulative
Traumatic
Asteatotic dermatitis
Pustular and acneiform
Subjective
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9
Q

Manifests when the skin is exposed to a potent irritant or caustic chemical

A

Acute ICD

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11
Q

Decrescendo vs crescendo: ICD or ACD

A

Decrescendo: ICD
Crescendo: ACD

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12
Q

Most frequent potent culprits giving rise to acute ICD

A

Acids and alkaline

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13
Q

Scaling and erythema are first identified under rings before spreading over fingers to hands and forearms

A

Irritant reaction contact dermatitis

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14
Q

Irritant reaction contact dermatitis usually affects the

A

Dorsum of the hand

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15
Q

Consequence of multiple subthreshold insults to the skin with insufficient time between insults to allow complete restoration of the skin barrier function

A

Cumulative ICD

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16
Q

In cumulative ICD, clinical symptoms develop only when the damage exceeds an individually determined

A

Manifestation threshold

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17
Q

Associated with weak irritants rather than potent irritants

A

Cumulative ICD

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18
Q

May arise after acute skin trauma

A

Traumatic ICD

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19
Q

Seen predominantly in elderly individuals with a history of extensive usage of soaps and cleansing products

A

Asteatotic dermatitis

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20
Q

Should always be considered when acneiform lesions develop in postadolescent patients who never had teenage acne

A

Pustular and acneiform ICD

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21
Q

Y/N: Pustules are sterile and transient in pustular and acneiform ICD.

A

Yes

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22
Q

Result from exposure to specific irritants such as croton oil, mineral ouls, tars, greases and naphthalenes

A

Pustular and acneiform ICD

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23
Q

Lack of objective clinical signs as individuals complain of a sensation of burning or stinging

A

Subjective ICD

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24
Q

Subjective ICD has been observed with chemicals such as

A

Lactic acid

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25
Q

Most common type of contact urticaria

A

Nonimmunologic contact urticaria

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26
Nonimmunologic vs immunologic contact urticaria
Nonimmunologic: remains localized, less severe, not inhibited by H-1 antihistamines
27
Y/N: Oral or topical nonsteroidal anti-inflammatory medications are effective for nonimmunologic contact urticaria.
Yes
28
Prototypical example of immunologic contact urticaria
Contact urticaria from latex gloves
29
Immunologic contact urticaria stage: localized urticaria, dermatitis, or nonspecific symptoms
Stage 1
30
Immunologic contact urticaria stage: generalized urticaria
Stage 2
31
Immunologic contact urticaria stage: Urticaria and rhinoconjunctivitis, asthma, or GI symptoms
Stage 3
32
Immunologic contact urticaria stage: anaphylaxis
Stage 4
33
Majority of natural rubber latex allergy caused a type _____ hypersensitivity reaction
IV
34
Second most common cause of immunologic contact urticaria
Food
35
Contact urticaria of uncertain mechanism is most commonly caused by
Ammonium persulfate in bleaching hair boosters
36
Exposure to certain dioxins, naphthalenes, biphenyls, dibenzofurans, azobenzenes, and azoxybenzens have been associated with
Chloracne
37
Subclinical irritant dermatitis
Irritation reaction contact dermatitis
38
Harpist’s
Finger
39
Fiddler’s
Neck
40
Guitar
Nipple
41
Cellist’s
Chest
42
Flautist’s
Chin
43
Jogger’s
Toe
44
Black heel or
Talon noir
45
Mousing
Callus
46
Computer
Palms
47
Use of vibration-producing tools can induce painful vascular spasms in the fingers and hands known as
White finger or vibration-induced white finger
48
White finger or vibration-induced white finger is a secondary type of
Raynaud’s phenomenon
49
Vibration frequencies between _____ Hz ate most strongly associated with vibration-induced white finger
30 and 300
50
Risk factor for vibration-induced white finger
Smoking
51
Highest incidence rates for all burn injuries
Welders
52
Outdoor workers are loosely defined as individuals who work outdoors for _____ or more hours
3
53
UV radiation is recognized to increase by _____% for every 1000 m in elevation
10-12
54
Pilots and cabin crew flying for approximately _____ minutes at cruising altitude receive the same amount of UVA as that from a 20-minute tanning bed session
56
55
Responsible for fish tank or swimming pool granuloma
Mycobacterium marinum
56
Responsible for the acute infection of erysipeloid
Erysipelothrix rhusiopathiae
57
Also known as fish-handler disease
Erysipeloid
58
Pitted keratolysis is usually caused by
Corynebacterium species
59
Caused by gram-negative bacterium that is primarily a disease of animals in which humans are an accidental host
Brucellosis
60
Tularemia is caused by
Francisella tularensis
61
Most common presentation of tularemia
Ulceroglandular form
62
Most severe though less common form of tularemia
Pneumonic form
63
Trichophyton verrucosum is associated with
Cattle, farm buildings, straw
64
Trichophyton mentagrophytes is associated with
Cattle and domestic animals
65
Microsporum canis is associated with
Domestic animals especially cats
66
Microsporum nanum is associated with
Pigs
67
Zoonotic infection caused by a parapox virus that commonly infected sheep and goats
Orf or ecthyma contagiosum
68
Also know as milker nodule
Pseudocowpox
69
Transmitted by direct contact from infected cows’ udders
Orf or ecthyma contagiosum
70
(High/Low) HPV transmission risk of oral and nasal HPV
Low
71
Butcher wart virus
HPV-7
72
Open test: (immunologic/nomimmunologic contract urticaria) usually presents earlier (15-20 min), whereas (immunologic/nomimmunologic contract urticaria) may be delayed (45-60 min) after application
Immunologic | Nonimmunologic
73
Exposure to arsenic can be detected in
Blood Hair Nails Urine
74
Most reliable indicator of exposure to arsenic
Urine
75
When measuring arsenic in urine, it is important to requesr
Speciation to determine the specific amounts of organic versus inorganic arsenic
76
Toxic forms of arsenic
Inorganic arsenic Elemental arsenic Arsine gas
77
Organjc arsenic can be found in
Seafood
78
Significantly elevate total arsenic levels up to _____ hours after ingesting a seafood meal
72
79
In the occupational setting, beryllium sensitization can be detected throug
Beryllium lymphocyte proliferation test
80
Permanent and potentially progressive granulomatous restrictive lung disease
Chronic beryllium disease
81
Y/N: Older individuals have increased reactivity to irritants
No - increased reactivity
82
Hierarchy of controls for mitigating hazards from most to least protective
``` Elimination Substitution Engineering Administrative PPE ```
83
_____ skin may be more reactive and _____ skin less reactive than white skin
Asian | Black
84
Atopic dermatitis is known to increase the susceptibility of skin to (irritants/allergens) but not to (irritants/allergens)
Irritants | Allergens
85
Wet work conditions are defined as
Exposure of skin to liquid for more than 2 hours per day or Use of occlusive gloves for more than 2 hours per day or Frequent handwashing
86
Characterized by multiple closed comedones and straw-colored cysts primarily over the malar crescents and retroauricular folds
Chloracne