Skin examination
Skin Exam Preparation
- Ensure patient is in a gown without socks
- Important for full skin exam to inspect areas like between toes
- For full skin examination:
- No bra, underwear can remain on
- Use proper lighting for effective examination
- Tools: measuring tape, magnifying glass, or derma scope
- Dermatologists utilize a dermatoscope for detailed inspection, especially for potential melanoma
- Obtain verbal consent before examining sensitive areas (genitalia/breasts)
- Always have a chaperone present during the exam for safety and ethics
- Important to develop the habit of this practice in OSCEs (Objective Structured Clinical Examinations)
- Wash hands before examination
- Wearing gloves considerations:
- Often not required in dermatology, but maintain a clean approach
General Examination Approach
- Establishing a routine is key:
- Consistent method prevents missing important information
- Start all physical exams with a general survey
- Focus on inspection first, followed by palpation
- Areas to inspect include:
- Scalp
- Hair texture and distribution
- Skin color changes (check for blanching)
- Blanching: color returns after pressure, indicating healthy blood flow
- Non-blanching: persists after pressure, indicating possible issue
- Lesions on the scalp, eyebrows, eyelids, etc.
- Certain diseases (e.g., endocrine disorders) may influence hair appearance
Skin Changes and Dermatological Awareness
- Key terms to recognize in skin conditions:
- "Curly, pink lesion, nodular, telangiectasia"
- Common sites for skin cancer include exposed areas (e.g., eyelids, nose, ears)
- Skin turgor as a hydration assessment:
- Pinch skin; if it remains tented, indicates possible dehydration
- Preferred assessment: oral mucosa evaluation for dryness (lips, tongue)
Skin Cancer Overview
- Most commonly diagnosed cancer in the U.S.
- Notably highlights need for awareness and early detection
- Types of skin cancer:
- Basal Cell Carcinoma: slowest growing, non-melanoma, rarely fatal
- Squamous Cell Carcinoma: potentially more aggressive than basal cell
- Melanoma: most lethal; capable of metastasizing
- Risk Factors for Skin Cancer:
- Ultraviolet (UV) radiation exposure (e.g., sunburn, tanning beds)
- Genetic predisposition: fair-skinned individuals at higher risk
- Importance of early detection and monitoring:
- Regular skin checks recommended
Pressure Ulcers and Wound Care
- Significant concern in healthcare particularly for elderly populations
- Impact of immobilization on skin integrity leading to ulcers
- Staging of pressure injuries:
- Stage 1: skin intact but reddened and irritated
- Stage 2: partial thickness loss, involving epidermis and possibly part of dermis
- Stage 3: full thickness loss, exposing adipose tissue
- Stage 4: extensive damage reaching muscle, tendons, or bone
- Unstageable: covered with eschar, making assessment impossible
Distinguishing Skin Conditions
- Differentiating cellulitis from abscess:
- Both can present with inflammation, tenderness, and warmth
- Cellulitis: generalized infection without pus; marked by redness and tenderness
- Abscess: localized collection of pus—feels fluctuance on palpation
- Treatment protocols may involve antibiotics, ultrasound for abscess identification
Hair and Nail Disorders
- Types of hair in adults:
- Vellus hair: short, fine, unpigmented
- Terminal hair: pigmented, thicker (e.g., scalp, beard, brows)
- Alopecia: types and causes:
- Androgenic alopecia: hereditary pattern baldness
- Telogen effluvium: temporary hair shedding post-trauma or stress
- Alopecia areata: autoimmune disorder causing patchy hair loss
- Traction alopecia: caused by tight hairstyles
- Nail changes as indicators:
- Inspect for deformities, nutritional deficiencies, or infections
Melanoma and Skin Cancer Biopsy Protocol
- Melanoma can appear under the nail (subungual) or on skin, requiring precise biopsy
- Mohs surgery widely used for cancer removal
- Process: remove lesion, pathological review for clear margins
- Important for areas sensitive to loss of tissue (e.g., face, eyelids)
- Discuss signs of trauma or any significant history during patient examination
- Importance of monitoring nail health and appearance post-injury
Conclusion
- Regular skin and hair assessments can help with early detection of issues
- Stay informed about skin conditions, understand normal and abnormal changes
- Educate patients about skin health, preventive measures, and awareness of changes in appearance