Skin Assessment Flashcards
(25 cards)
The skin activates vitamin ___
D
Does the epidermis have its own blood supply?
No
What is the main component of dermal tissue?
Collagen
Which skin layer contains capillaries, lymph vessels, and sensory nerves?
Dermis
What are the pigment-producing cells of the skin called?
melanocytes
Which layer:
- Fat, smooth muscle & areolar tissue
- Heat insulator
- Shock absorber
- Nutritional depot
subcutaneous tissue
Which layer:
- Collagen and elastic fibers
- Collagen produced by fibroblast cells
- Blood vessels
- Sweat & sebaceous glands
- Hair follicles
- Nerves to the skin
- Sensory fibers
- Capillaries
Dermis
Function of mast cells:
Secretion, phagocytosis, production of fibroblasts
How quickly does the epidermis regenerate?
q 28-45 days
What are the 3 layers of the epidermis
Stratum corneum
Stratum granulosum
Basal layer: keratinocytes, melanocytes
How thick is the epidermis?
Less than 1 mm
What type of glands contain: axillae, nipple areolae, periumbilicus, perineal
Apocrine
What type of glands:
over entire skin surface
Eccrine
Petechiae often indicate increased _______ fragility.
capillary
Rashes:
Macular—____ rash
Papular—______ rash
flat
raised
Test for fungal infections:
Potassium hydroxide (KOH) test
Test for bacterial infections:
C&S testing
Test for viral infections:
Tzanck smear
Types of biopsies:
Punch
Shave
Excisional
Explain KOH testing
gram negative cells lyse very easily when exposed to KOH (due to thin PG layers). causing it to be stringy
Explain Tzank Smear
vesicle is deroofed and then smeared for examination
Biopsy in which the cross-section wedge of tissue through center of lesion
Incisional
Biopsy in which horizontal shave of skin lesion with only superficial portion of dermis
Shave
Biopsy in which sampling of possible cancers, tumors, inflammatory skin conditions
Punch
