Exam 3- Tissue Integrity Flashcards
Integumentary:
Initial reaction to a problem that alters one of the structural components of the skin
Primary
Integumentary:
Changes in the appearance of the primary lesion with progression of an underlying disease or in response to a topical or systemic therapeutic intervention
Secondary
Integumentary:
Related to blood vessel integrity
Vascular
Protects tissues from physical, chemical & biologic damage. Prevents water loss, serves as a water-repellent layer. Stores melanin, converts cholesterol to vitamin D when exposed to sunlight. Contains phagocytes, which prevent bacteria from penetrating skin.
Epidermis
Regulates body temp. by dilating & constricting capillaries.Transmits messages via nerve endings to CNS.
Dermis
Secretes sebum, which lubricates skin & hair & plays role in killing bacteria.
Sebaceous (oil) glands
Regulate body heat by excretion of perspiration.
Eccrine sweat glands.
Remnants of sexual scent gland
Apocrine sweat glands.
A reddening of the skin. May occur during fever, hypertension, inflammation. May also result from sunburns, drug reactions, acne rosacea etc.
Erythema
A bluish discoloration of the skin and mucous membranes.
Cyanosis
Why does cyanosis occur?
Results from poor oxygenation of hemoglobin.
Paleness of skin, may occur with shock, anger, fear, anemia & hypoxia.
Pallor
An abnormal loss of melanin in patches. Typically occurs over the face, hands or groin.
Vitiligo
Appears as patches of pale, itchy wheals in an erythematous area.
Urticaria (hives)
Raised bluish or yellowish vascular lesions.
Bruises (Ecchymosis)
An accumulation of fluid in the body’s tissues.
Edema
How is edema graded?
Depress patient’s skin.
1+ Slight pitting - no obvious distortion
2+ Deeper pit, no obvious distortion
3+ Pit is obvious; extremities are swollen
4+ Pit remains with obvious distortion
When/why is edema commonly found? (think health reasons, not time of day) (5)
- Cardiovascular
- Renal failure
- Trauma
- Cirrhosis of liver
- Side effect of drugs
Hair loss - may be related to hormones, chemical or drug treatments (radiation).
Alopecia
Flat, nonpalpable change in skin color. Usually a circumscribed border. Smaller than 1 cm.
Ex. freckles, measles, petechiae.
Macule
Flat, nonpalpable change in skin color. May have irregular border. Larger than 1 cm.
Ex. Mongolian spots, port-wine stain, vitiligo.
Patch
Elevated, fluid-filled, round or oval shaped, palpable mass with thin translucent walls & circumscribed borders. SMALLER than 0.5cm.
Ex. herpes, early chickenpox, poison ivy.
Vesicles
Elevated, fluid-filled, round or oval shaped, palpable mass with thin translucent walls & circumscribed borders. LARGER than 0.5cm.
Ex. Contact dermatitis, friction blisters, large burn blisters.
Bulla
Elevated solid, palpable mass with circumscribed border. SMALLER than 0.5 cm.
Ex. Elevated moles, warts.
Papule