final Flashcards
skin basics
integumentary system
largest organ of the body
skin is composed of
water, protein, fats, and minerals
layers of the skin
epidermis
dermis
hypodermis
functions of the skin
- protection
- absorption
- excretion
- secretion
- regulation
- sensation
hair functions
appending of the skin
protects the body
enables sensory stimulation
genetic changes alter the
amount and distribution of body hair
where are hair follicles located
in the dermis
present in all areas of the body except the palms and soles
sebaceous glands support
each hair follicle
secretes sebum
sebum maintains
hair moisture and condition
sebaceous glands
decline with age
nails
epidermal appendages
nails arise from
a nail matrix in the epidermal layer and are composed of a nail plate and bed
systemic diseases or infectious processes can alter
the growth rate and thickness of nails
glands
- sudoriferous glands
- eccrine glands
- procaine glands
- sebaceous glands
sudoriferous glands
maintain normal body temperature
eccrine glands
cover most of the body with the exception of nail beds, lib margins, glans penis, and labia minora
secret a weak saline solution (sweat)
apocrine glands
axillae and genital areas
open into hair follicles
sebaceous glands
all over body except palms and soles of hands and feet
secretes sebum - oil like substances
inflammation = acne
older adult changes of skin
- loss of elastin, collagen, and sub fat = thinner skin
- decreased skin turgor
- decreased rate of epidermal repair
- decreased efficiency of glands
- increased risk of skin breakdown
- decreased melanin
cultural differences in skin
- differences in hair color and texture (hair coverings)
- ashy dermatosis
- traction alopecia
- keloids
- congenital dermal melanocytosis - “Mongolian spots”
- tattoos and body piercings
- therapeutic burning
priority urgent assessment of skin
- acute lacerations, burns, tissue injuries
- rash of unknown cause
interventions for acute lacerations, burns, and tissue injuries
fluids, oxygen, and skin protection
most skin findings are non emergent but…
must be reported for further evaluation and may be associated with other causes
ABCDE of melanoma detection
a- asymmetry
b- border
c- color
d- diameter
e- evolving
subjective data for skin
- abcde’s
- sunburn frequency and sun related skin-care
- lifestyle factors and personal habits
- meds and/or allergies
- family hx
teaching and health promotion for skin
- excess UV radiation and sun exposure
- promote SPF 30+ and broad spectrum
- self skin exams
pruritis
- itching
- preceded atopic lesions
- follows inflammatory lesions
rash
- can be from contact or allergic dermatitis
- localized or generalized
- macular, papular, pustular, vesicular, plaque
single lesion or wound
determine if acute or chronic
consider cause
normal findings upon inspection of skin
consistent pigmentation throughout the body, skin has pink tones and is normal for ethnic background, skin is clean dry and intact
abnormal findings for inspecting skin
vitiligo, flushing, erythema, cyanosis, pailon rubor, brawny, jaundice, uremic frost, wounds or skin lesions
normal findings of palpation
- consistent temp throughout body
- moisture and warm
- skin turgor elastic
- no lesions present
- nails smooth and nontender
- hair smooth
abnormal findings upon palpation
- hot temperature
- diaphoresis
- dry or flaky skin
- tenting
- delayed cap refill
- swelling or heat at specific site
- thin or brittle hair
acute wounds
heal in less than 6 weeks
chronic wound
takes greater than 6 weeks to heal
wound healing phases
- inflammatory phase
- proliferative phase
- remodeling phase
inflammatory phase
- begins within 30 minutes of injury and lasts 2-3 days
- vasoconstriction, platelet aggregation, aid release of thromboplastin promote hemostasis
- inflammatory reaction follows, polymorphonuclear cells to cleanse the wound of debris and kill bacteria
- mononuclear cells became macrophages to cleanse wound of debris, dead bacteria, and spent neutrophils
proliferative phase
- may last up to 4 weeks
- fibroblasts migrate into the wound bed to deposit collagen and secrete growth factors
- macrophages produce enzymes to stimulate new growth and generate blood vessels
- wound has the appearance of granulation
- wound bed is regenerating so wound edges begin to contract an move centrally to close the wound and epithelial regrowth closes it
remodeling phase
- begins at end of proliferative
- can last up to 2 years
- once deposition of new collagen is maximized (at 3 weeks), macrophages stimulate a gradual replacement and new replaced collagen with mature collagen which greatly increases the strength of the wound
measuring of the wound
L x W x D
length - head to toe
width - side to side
depth - straight down into wound bed
measure of tunneling and undermining
braden scale pressure ulcers
- moisture
- activity
- mobility
- nutrition
- shear
if pt is incontinent
keep skin clean, dry, and intact
skin and wound assessment
- throughout full body skin assessment on hospital admission for ALL pts (head to toe with 2 nurses)
- looking for pressure injuries, moisture associated skin damage, intrigo, diabetic foot ulcer,venous ulcer, arterial ulcer, traumatic wound, lesions, surgical incisions/puncture sites
- burns
pressure injury
injury to skin and underlying tissue resulting from prolonged pressure over bony prominences
INJURY
I- incontinence care
N- nutrition and hydration
J- just move
U- use pressure relief
R- reassess at least 1x/shift
Y- you seek help early
stage I
nonblanchable erythema w/ closed skin
stage II
top layer of skin comes off
stage III
fat tissue
stage IV
fat into bone and tendons
unstageable
dead skin cells and eschar
SDTI
severe deep tissue injury that hasn’t opened
burn assessment
- classified on depth of tissue destruction and percentage of total body surface area affected
depth of burn
assess vascular and sensory status as well as appearance and blancing of burn
percentage of burn
calculated using wallace rule of 9s
superficial burns
epidermis layer
superficial dermal burns
epidermis and part of dermis
deep dermal burns
epidermis and all of dermis
total thickness
all layers of skin (may extend to supportive fascia
wound healing complications
- infection
- osteomyelitis
- necrosis/gangrene
- peri-wound dermatitis
- edema
- hematoma
- dehiscence
infection
most common
redness, swelling, pain
catch early, discharge teaching
osteomyelitis
infection into bone
requires surgery and IV antibiotics and even possible amputation
necrosis/gangrene
no circulation
amputation
peri-wound dermatitis
boggy soft tissue around wound bed which can indicate wrong treatment
hematoma
bleeding under skin
dehiscence
reopening of wound
analyze labs and diagnostics
- integumentary findings often reflect the status of other symtpoms
- constantly observe skin while assessing other symptoms
- culture and sensitivity
- wood light test
- allergen testing
- biopsy
diagnosis: wound
description: alteration in or damage to one or more layers of skin
assessment: wound, surgical incision, break in skin integrity
interventions: document wound assessment, and exudate, collab w/ provider on debridement and/or surgical intervention
diagnosis: impaired skin integrity, tissue integrity, or DTI
description: damage to tissues of subq layer of skin, mucous membrane, cornea, or all of these
assessment: damaged or destroyed subq, muscle, bone, mucous membranes, or corneal tissues
interventions: size and depth, periwound skin, continence status, tube/incision placement, apply dressing, assess risk of skin breakdown, evaluate special matresses, avoid bony prominences, collab w physician on surgery or debridement
diagnosis: risk for infection
description: pathogenic organisms from break in skin tissue, body’s primary defense
assessment: break in skin integrity, tubes and procedures, exposure to pathogens, malnutrition, inadequate immunity, chronic disease
interventions: frequent handwashing, universal precautions, protect wound, monitor fever, WBC elevation, drainage, or erythema, discontinue as soon as possible, nutrition
breast and axillae landmarks
- anterior chest way 2nd intercostal space superiorly, 6th or 7th ICS inferiorly, sternal margin to midaxillary line
breast and axillae are supported by
pectoral muscle and superficial fascia
breast structures
- lie anterior to serratus anterior and pectoralis major muscles
- comprised of: nipple, areola, montogomery gland, fibrous tissue, glandular tissue, lymph nodes
blood supply to breasts
- deep breast tissue and nipple: internal mammary and lateral thoracic arteries
- superficial tissues: intercostal, subscapular, and thoracodorsal arteries
axillae and lymph nodes
- each breast has lymphatic network
- lateral axillary - brachial
- central axillary - midaxillary
- posterior axillary - subscapular
- anterior axillary - pectoral
pregnancy
changes occur around 2 months
begin to express colostrum during 4th month (high protein, carbs, and antibodies, low in fat)
newborns and infants
breast tissue is not sex specific
enlarged breast tissue with some white discharge is common
supernumerary nipple
children and adolescents
- prior to puberty, no change in breast tissue
- adolescence (females at birth develop related increased hormones
- adipose tissue and lactiferous ducts grow from increased estrogen
- progesterone stimulation = lobular growth and alveolar budding
full breast development occurs over
3 year period of time
tanner stage 1
girls: elevation of papilla only, villus hair only, 2.2-2.4 inches/year, adrenarche and ovarian growth
boys: testes <2.5 cm, villus hair only, 2.0-2.4 in/year, adenarche
tanner stage 2
girls: breast bud under areola, aerola enlargement, sparse hair along labia, 2.8-3.2 inches/year, clitoral enlargement, labia pigmentation, uterus growth
boys: testes 2.5-3.2cm thinning and reddening of scrotum, sparse hair at penis base, 2.0-2.4 in/yr, decrease in BF
tanner stage 3
girls: breast tissue grows but no contour or seperation, coarser hair curled pigments cover pubes, 3.2 inches/year, axillary hair, acne
boys: testes 3.3-4.0 cm, increase of penis length, thicker curly hair spreads to pubis, 2.8-3.2 inches/year, gynecomastia, voice rbeak, increased muscle mass
tanner stage 4
girls: projection of areola, and papilla, secondary mound formation, adult hair, does not spread to thigh, 2.8 in/yr, mearche and development of menses
boys: testes 4.1-4.5 cm, penis growth darkening of scrotum, adult hair doesn’t spread to thighs, 4in/yr, axillary hair, voice change, acne
tanner stage 5
girls: adult type contour, projection of papilla only, adult hair spreads to thighs, cessation of liner growth, adult genitalia
boys: testes >4.5cm, adult genitalia, adult hair spread to medial thighs, deceleration, cessation, facial hair, muscle mass increase
older adults
- glandular, alveolar, and lobular tissue decrease
- post-menopause (fat deposits replace glandular tissue, decreased ovarian hormone levels)
- suspensary ligaments relax
- decreased size and elasticity
- axillary hair growth stops
breasts in males
- immature structures w/ well developed areole and small nipples
- mid-puberty - hormone levels change causing gyneocmastia, palpable, discrete mass of firm subareolar tissue greater than 2cm in diameter
- pubescent
- adolescent
priority urgent assessment
- trauma
- infection
- pain
- masses
- nipple dischargec
conditions requiring further evaluation to rule out cancer
- new breast lump or mass
- swelling or all or part of breast
- skin irriation
- breast/nipple pain
- nipple retraction
- redness, scaliness, or thickening of nipple, nipple discharge
subjective data collection
- sensitive topic
- focus on health hx (discomoft, masses, lumps, breast surgeries, mestrual cycle, pregnancy, lactation history, hormone replacement therapy, hormonal contraceptive use, hx of breast tauma and self care behaviors, family hx of breast cancer
symptoms of breast cancer
breast pain
rash
lumps
swelling
nipple discharge
trauma
gail model
uses 7 risk factors for breast cancer risk such as age, age of first period, age at first birth, family hx, number of breast biopsis, number showing atypical hyperplasia, race/ethnicity
teaching and health promotion for breasts
- genetic testing for early diagnosis
- mammograms (yearly age 45-54) every other year age 50-74
normal breast findings
- skin tone matching ethnicity
- potential striae
- varierty of normal shape and size
- breasts symmetric
- contour smooth.uninterupted
- areola round to oval, pink to dark brown
- nipples everted
- potential supernumeracy nipple
- no s/s of infection
- no rashes
- smooth countour on palpation
- one or more small ,soft, nontenderous nodules
abnormal breast findings
- eryhtema
- hyperpigmentation
- unilateral vascular appearance
-rashes - peau d/orange
- nipple retraction
- change in color or size
- assymetric breasts
- firm hard enlarged lymph nodes
- tender warm enlarged lymph nodes
- tenderness on palpation
- nipple discharge
how many lactiferous duct empty to nipple
15-20
ducts lead from alveoli (lobules) where
milk is synthesized
fibrous connective tissue
structural support: cooper bands
glandular tissue is formed by ducts and lobules
15-20 glandular lobes in each breast from nipple outwards
nipple and areola
- surrounded by smooth muscle which contract to express milk during lactation
- sensory innervation stimulated by infant sucking “milk let down”
- tactile stimulation can stimulate normal reflexes that cause a smaller firmer breast and puckering of areola
supernumerary nipple
- located along milk line
- only small nipple and areola usually present
- mistaken for common mole
anterior axillary
- pectroal nodes
- along lower border of pectoralis major inside anterior axillary fold, they drain the anterior chest wall and much of breast
posterior
- subscapular nodes
- along lateral border of scapula
- palpated deep in posterior axillary fold
- drain posterior chest wall and portion of arm
lateral nodes
- brachial nodes
- found along upper humerus
- drain most of arm
central axillary nodes
- midaxillary
- most frequently palpable
- lymph drains from central axillary nodes to the infraclavicular and supraclavicular nodes
male breasts
- chiefly small nipple and areola
- overlie thin disc of undeveloped breast tissue
- may be dificult to distinguish male breast tissue from surrounding muscle of chest wall
pregnancy
- estrogen, progesterone, prolactin influence breast chanegs
- colostrum: first 3-5 days, protein, carbs, antibodies, low in fat, easier to digest
puberty
secondary characteristics develop under hormonal influence of estrogen and progesterone
mearche glandular tissue of breasts change
tanner staging used to describe breast development
older adults
glandular, alveolar, and lobular tissue decrease
due to decrease in hormones
black or african american females are almost 40% more likely to die from
breast cancer compared to white females
inspection of breasts
arms at side to note any redness, size and symmetry of breasts, countour of breasts and characteristics of nipples and their direction
dimpling or retraction may suggest underlying cancer
leaning forward to assess for any retraction of nipple and areola
palpation of breasts
- lateral
- medial
- consistency of tissues
- tenderness
- nodules
- using pads of 3 fingers, palpate in small circles systematically
increase in amount of breast flandular tissue in boys or men caused by imablance of
hormones estrogen and testosterone, gynecomastia can affect one or both breasts sometimes unevenly
male breast exam
- rash, infection, usual pigmentation
- pectoral nodes
- lateral nodes
- subscapular nodes
visible signs of breast cancer
- nipple retraction and deviation
- skin dimpling
- peau d’orange