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Chapter 12: Skin, Hair, and Nails
Copyright 2009 Elsevier Canada, a division of Reed Elsevier Canada, Ltd.
Skin, Hair, and Nails
Chapter 12
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Chapter 12: Skin, Hair, and Nails
Structure and FunctionSubjective DataHealth History Questions
Objective DataThe Physical ExamAbnormal Findings
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Chapter 12: Skin, Hair, and Nails
Structure of Skin
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Chapter 12: Skin, Hair, and Nails
Structure of Nails
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Chapter 12: Skin, Hair, and Nails
Function of the Skin
ProtectionPrevents penetrationPerception
Temperature regulation
IdentificationCommunicationWound repairAbsorption and excretion
Production of vitamin D
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Chapter 12: Skin, Hair, and Nails
Subjective DataHealth HistoryQuestions
Previous history of skin disease(allergies, hives, psoriasis, or eczema)
Change in moleChange in pigmentation (size or colour)Excessive dryness or moisturePruritus
Excessive bruising
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Chapter 12: Skin, Hair, and Nails
Subjective DataHealth historyquestions(cont.)
Rash or lesionMedicationsHair lossChange in nailsEnvironmental or occupational
hazardsSelf-care behaviours
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Chapter 12: Skin, Hair, and Nails
Objective DataThe
Physical ExamPreparationExternal variables that influence skin colourEquipment needed
Strong direct lightingSmall centimetre rulerPenlightGloves
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Chapter 12: Skin, Hair, and Nails
Objective DataThePhysical Exam(cont.) SkinInspect and palpate
ColourGeneral pigmentationWidespread colour change
PallorErythemaCyanosis
Jaundice
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Chapter 12: Skin, Hair, and Nails
Objective DataThePhysical Exam(cont.) SkinInspect and palpate (cont.)
TemperatureHypothermiaHyperthermia
MoistureDiaphoresis
Dehydration
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Chapter 12: Skin, Hair, and Nails
Objective DataThePhysical Exam(cont.)
SkinInspect and palpate (cont.) Texture ThicknessEdemaMobility and turgorVascularity or bruising
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Chapter 12: Skin, Hair, and Nails
Objective Data The Physical Exam(cont.)
SkinInspect and palpate (cont.)Lesions
ColourElevationPattern or shapeSize
Location and distribution on bodyExudate
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Chapter 12: Skin, Hair, and Nails
Objective DataThePhysical Exam(cont.)
HairInspect and palpateColour
TextureDistributionLesions
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Chapter 12: Skin, Hair, and Nails
Objective DataThePhysical Exam(cont.)NailsInspect and palpate
Shape and contourProfile sign
ConsistencyColour
Capillary refill
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Chapter 12: Skin, Hair, and Nails
Objective DataThePhysical Exam(cont.)Promoting health and self-care
Teach skin self-examination, using theABCDE rule
AasymmetryBborderCcolour
DdiameterEelevation and enlargement
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Chapter 12: Skin, Hair, and Nails
Abnormal Findings
Common Shapes andConfigurations of LesionsAnnular or circularConfluentDiscreteGrouped
Target or irisLinearPolycyclic
Zosteriform
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Chapter 12: Skin, Hair, and Nails
Annular or Circular
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Chapter 12: Skin, Hair, and Nails
Confluent
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Chapter 12: Skin, Hair, and Nails
Discrete
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Chapter 12: Skin, Hair, and Nails
Grouped
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Ch t 12 Ski H i d N il
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Chapter 12: Skin, Hair, and Nails
Target
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Chapter 12: Skin, Hair, and Nails
Linear
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Chapter 12: Skin, Hair, and Nails
Polycyclic
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Chapter 12: Skin, Hair, and Nails
Zosteriform
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Chapter 12: Skin, Hair, and Nails
Abnormal FindingsPrimary and Secondary SkinLesionsPrimary skin lesions
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Urticaria (hives) Vesicle Cyst Bulla Pustule
Macule Papule Patch Plaque Nodule Wheal Tumour
Excoriation Scar Atrophic scar Lichenification Keloid
Secondary skin lesions Crust Scale Fissure Erosion Ulcer
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Chapter 12: Skin, Hair, and Nails
Macule
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Chapter 12: Skin, Hair, and Nails
Papule
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Chapter 12: Skin, Hair, and Nails
Nodule
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Wheal
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Vesicle
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p , ,
Cyst
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p , ,
Pustule
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p , ,
Crust
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p
Scale
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Fissure
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Erosion
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Ulcer
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Excoriation
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Scar
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Atrophic Scar
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Lichenification
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Keloid
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Abnormal FindingsVascular LesionsHemangiomas
Port-wine stain(nevus flammeus)Strawberry mark(immature hemangioma)Cavernous hemangioma(mature)
TelangiectasesSpider or star angioma
Venous lake
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Purpuric lesionsPetechiaePurpura
Lesions caused bytrauma or abusePattern injuryHematomaEcchymosis (bruise)
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Lesions caused by traumaor abuse: Pattern injury
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Lesions caused by traumaor abuse: Hematoma
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Lesions caused by traumaor abuse: Ecchymosis
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Canadian Cancer Society Risk Factors
Prolonged exposure to UV rays, individualsmost at riskUnder age 18Fair skinned
History of skin cancerHave freckles or molesHave a family history orUsing medications that increase sensitivity to
UV rays.
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The lesions in theillustrationare best described as?A. GroupedB. ZosteriformC. PolycyclicD. Linear