Assessing The Integumentary System Flashcards
● Heaviest single organ of the body
● 16% of body weight
● Includes appendages such as hair follicles and sebaceous glands
Skin
● Three layers: epidermis, dermis, subcutaneous layers
● Protect underlying structures from physical trauma and UV radiation
● Essential in maintaining body temperature, fluid and sensation
● Involved in absorption and excretion, immunity, and synthesis of vitamin D from the sun
Skin
Layers of the Skin
- Epidermis
- Dermis
- Subcutaneous Layer
Identify the Layer of Skin
● Outer visible layer
● Avascular
● Contains keratin
Epidermis
Identify the Layer of Skin
● Made up of proteins and mucopolysaccharides
● Contains nerve tissues, blood vessels,
sweat and sebum glands, and hair follicles
Dermis
Identify the Layer of Skin
● Made up of fatty connective tissue
Subcutaneous Layer
● Made up of keratinized cells
● Grows from hair follicles supplied by blood vessels
● Types: Vellus and Terminal hair
● Provides protection by covering the scalp and filtering dust and debris away from the nose, ears, and eyes
Hair
Types of Hair
- Vellus hair
- Terminal hair
Identify the types of Hair
● Short, pale, and fine hair
Vellus hair
Identify the types of Hair
● Dark and coarse
● Found on the scalp, brows, legs, axillae
and perineum
Terminal hair
● Made up of hard, keratinized cells and grow from a nail root under the cuticle
● Protect the distal ends of the fingers and toes and aid in picking up objects
● Other structures: free edge, nailbed, lunula
● Vascular supply is on the nailbed; gives the nail a pink color
● Fingernails: grow approximately 0.1mm daily
● Toenails grow more slowly
Nails
It has Eccrine glands and Apocrine glands
Sweat glands
This gland is….
- Widely distributed, open directly onto
the skin surface
- Help control body temperature
Eccrine glands
This gland is….
▪ found in the Axillary and genital regions
▪ surfaces into hair follicles
▪ Responsible for adult body odor due to
bacterial decomposition
Apocrine glands
Gland that produce fatty substance secreted onto the skin surface through the hair follicles and lubricates the hair shaft
Sebaceous gland
Interaction with other Body Systems:
- The Respiratory System
If respiration is impaired, alterations is the skin are most often evident through
the development of cyanosis
Bluish discoloration of the skin, as hemoglobin becomes unsaturated with oxygen
CYANOSIS
Respiratory System Fails Manifestations: Cyanosis
Peripheral and Central Cyanosis
Respiratory System Fails Manifestations: Cyanosis
Occurs when O2 saturation is <80% and results in diffuse changes in the skin and mucous membranes
Central Cyanosis
Respiratory System Fails Manifestations: Cyanosis
Occurs in response to decreased cardiac output Evident in areas of the body such as the nail beds and lips May also be evident when an individual is chilled
Peripheral Cyanosis
Manifestations when Respiratory System Fails:
Loss of the normal angle between the nail and nail bed owing to bulbous swelling of the soft tissue of the terminal phalanx of a digit due severe and chronic cardiopulmonary diseases
Nail Clubbing
Manifestations when Cardiovascular System Fails:
- Alterations can lead to circulatory impairment and changes in skin color and temperature which may develop Lesions, ulcerations, necrosis, and cyanosis
Manifestations when Gastrointestinal System Fails:
body’s ability to excrete toxins is impaired and accumulation of toxins may become
evident in the skin
Manifestations when Gastrointestinal System Fails:
- Yellowish discoloration of the skin due
to bile build-up secondary to impaired
bile secretion
Jaundice
Manifestations when Gastrointestinal System Fails:
- Lipid deposits in the skin due to altered
lipid metabolism
Xanthomas
Manifestations on skin when there is Vitamin A Deficiency
- abnormally dry,
scaly skin or membranes
Xerosis
Manifestations on skin when there is Vitamin A Deficiency
- hyperkeratosis of the skin manifested by red-brown follicular papules that are approximately 2-6mm in diameter, with a central keratotic spinous plug
Phrynoderma
Manifestations on skin when there is Riboflavin Deficiency
- chapping and
fissuring of the lips
Cheilosis
Manifestations on skin when there is Riboflavin Deficiency
- sore, red tongue
Glossitis
Manifestations on skin when there is Vitamin C Deficiency
- It results into purpura, petechiae, and
ecchymosis in the skin and splinter hemorrhages in the nails
Capillary fragility
Manifestations on skin when there is Vitamin C Deficiency
- Hair loss can affect just your scalp or your entire body, and it can be temporary or permanent
- can be the result of heredity, hormonal changes, medical conditions or a normal part of aging
Alopecia
Manifestations on skin when there is Vitamin C Deficiency
- can occur as a result of scurvy
Corkscrew hair
Manifestations on skin when there is Iron Deficiency
- vertical raised lines present on the nails
Longitudinal ridges on the nails
Manifestations on skin when there is Iron Deficiency
- spoonlike convexity of the nails
Koilonychia
Manifestations on skin when there is Iron Deficiency
Thinning of hair
Manifestations on skin when there is Iron Deficiency
- loss of pink color in the palmar creases on the
full open palms
Palmar crease pallor
Manifestations on skin when there is Protein Deficiency
- alternating horizontal bands of hypopigmentation of the hair
Flag sign
Manifestations on skin when there is Protein Deficiency
- dark, dry kin that splits open when stretched,
revealing pale areas between the cracks
Enamel paint skin
Manifestations when Urinary System Fails:
- Alteration in the renal function
may lead to toxin and fluid
build-up
Skin Manifestations when Urinary System Fails:
- Tiny, yellow-white urea crystals deposits on the skin resulting in a frosted appearance as sweat
evaporates
Uremic frost
Skin Manifestations when Urinary System Fails:
- Impaired renal function may result in fluid retention as manifested by edema
Edema
Manifestations when Neurological System Fails:
- place a person at risk for injury
and discomfort
Manifestations when Endocrine System Fails:
Alterations of the endocrine system may affect the skin in myriad ways
- Diabetes
- Thyroid Disease (Hypothyroidism or Hyperthyroidism)
- Adrenal Disease (Hypofunction (Addison’s
Disease) and Hyperfunction (Cushing’s Syndrome)
Thyroid Disease has two types
Hypothyroidism and Hyperthyroidism
Thyroid Disease Identify which type:
- The skin is often dry and cool and becomes puffy, with nonpitting edema. It may develop a yellow hue as carotene accumulates The hair becomes dull, brittle, and sparse
Hypothyroidism
Thyroid Disease Identify which type:
- The skin is warmer, sweatier, and smoother than usual The nails are thin and brittle and may separate from the nail plate The hair is fine and silky, with patchy hair loss
Hyperthyroidism
Adrenal Disease two types
Hypofunction (Addison’s Disease) and Hyperfunction (Cushing’s Syndrome)
Adrenal Disease Identify which type:
- Bronze discoloration of the skin
and alopecia
Hypofunction (Addison’s Disease)
Adrenal Disease Identify which type:
- Violaceous striae, facial acne, hirsutism, acanthosis nigricans
Hyperfunction (Cushing’s Syndrome)
Manifestations when Lymphatic/Immune
System Fails:
Impairments in the immune system may result in typical rashes or lesions
Skin Manifestations when Lymphatic/Immune
System Fails:
- exaggerated or inappropriate immunologic responses occurring in response to an antigen or allergen
Hypersensitivity reaction
Skin Manifestations when Lymphatic/Immune
System Fails:
- chronic (long-lasting) disease in which the immune system becomes overactive, causing skin cells to multiply too quickly
- Patches of skin become scaly and inflamed, most often on the scalp, elbows, or knees
Psoriasis
Skin Manifestations when Lymphatic/Immune
System Fails:
- when immune cells in your skin react to UV light sources, releasing chemicals that inflame your skin
Butterfly rash in Systemic Lupus Erythematosus
Collecting Subjective Data: GROWTHS
Ask if the patient is concerned about any new growths or rashes
- “Have you noticed any changes in your skin? Your hair? Your nails?
- “Have you had any rashes? Sores? Lumps? Itching?”
If the patient reports a new growth, pursue the patient’s personal and family history of skin cancer.
- Note the type, location, and date of any past skin cancer and ask
about regular self-skin examination and use of sunscreen - Also ask “Has anyone in your family had a skin cancer removed? If
so, who? Do you know what type of skin cancer?”
Collecting Subjective Data: RASHES
Ask about itching – the most important symptom when assessing rashes
- Does the itching precede the rash or follow the rash?
- For itchy rashes, ask abut seasonal allergies with itching and watery eyes, asthma, and atopic dermatitis, often accompanied by rash on the inside of the elbows and knees in childhood
- Can the patient sleep all night or does itching wake up the patient?
Find out what type of moisturizer or over-the-counter products have been applied
Ask about dry skin, which can cause itching and rash
Collecting Subjective Data: HAIR LOSS
- Ask if there is hair thinning or hair shedding and, if so, where? (the most common causes of diffuse hair thinning are male and female pattern baldness)
- If shedding, does the hair come out at the roots or break along the hair shafts? (Hair shedding at the roots is common in telogen effluvium and alopecia areata. Hair breaks along the shaft suggest damage from hair care or tinea capitis)
- Ask about hair care practices like frequency of shampooing and use of dyes, chemical relaxers, or heating appliances
Collecting Subjective Data: Hair loss
- frontal hairline regression and thinning on
the posterior vertex
Male pattern hair loss
Collecting Subjective Data: Hair loss
- thinning that spreads from the crown down
without hairline regression
Female pattern hair loss