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1.
Which layer of the epidermis
is characterized by the following:
“Present only on the palms and soles. It is composed of flat
cells. This transitional layer of the epidermis acts as a
barrier for prevention of water loss and protection against the
absorption of noxious substances”
a.
Stratum Germinativum
b.
Stratum Spinosum
c.
Stratum Granulosum
d.
Stratum Lucidum
e.
Stratum Corneum
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Answer D.
The epidermis is generally
composed of four cell types: melanocytes,
keratinocytes, Merkel’s cells, and Langerhans’
cells. The outer skin surface is composed of 4
layers with the exception of the palms and soles
where there is an additional Stratum Lucidum layer.
From Dockery, Cutaneous Disorders of the Lower
Extremity, 1997, Chapter 1, page 2. |
2.
Which of the following lesions types
is an elevated lesion (above the plane of the skin)?
a.
Plaque
b.
Macule
c.
Purpura
d.
Sclerosis
e.
Telangectasia
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Answer A.
Elevated skin lesion types
are: abscess, burrow, cyst, crust, lichenificaiton,
nodule, papule, plaque, pustule, scale, vesicle,
wheal. From Dockery, Cutaneous Disorders of the
Lower Extremity, 1997, Chapter 2, page 14. |
3. Mosaic
warts are generally associated with Human Papilloma Virus type:
a.
2
b. 5 and
10
c. 2 and
4
d. 5
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Answer A. While mosaic
warts are usually associated with HPV 2, verruca
vulgaris is usually HPV 2 and 4, and verruca plana
are usually HPV 3 and 10. From Dockery, Cutaneous
Disorders of the Lower Extremity, 1997, Chapter 7,
page 70-73. |
4.
Which of the following
best matches this definition? “discoloration of the skin
resulting when blood extravasates into the intracutaneous or
subcutaneous areas.”
a.
Erythema
b.
Telangectasia
c.
Purpura
d.
Star ectasia
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Answer C. Unlike
telangiectasia and erythema, purpura is variable in
color and does not blanch on external pressure. From
Dockery, Cutaneous Disorders of the Lower Extremity,
1997, Chapter 9, page 118. |
5.
Which of the following topical
corticosteroids is the most potent?
a. Prednisolone 0.5%
b. Triamcinolone acetonide
cream 0.5%
c. Betamethasone
dipropionate cream 0.05%
d.
Desoximethasone cream 0.25%
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Answer D. The
potency of topical corticosteroids is generally
placed onto a scale ranging from I (high potency) to
VI (least potent). Answer D is from the high potency
group. From Dockery, Cutaneous Disorders of the
Lower Extremity, 1997, Chapter 10, page 144. |
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