A nurse is assessing a 45-year-old construction worker who presents to the clinic for a routine skin examination. Which assessment finding would be most concerning as a risk factor for developing skin cancer?
1Presence of multiple irregular, asymmetrical moles with varying colors on the back and shoulders✓ 정답
2Dry, flaky skin patches on the arms and legs
3Small, round, uniform brown spots scattered across the face
4Mild erythema on the neck area
해설
Irregular, asymmetrical moles with varying colors meet ABCDE criteria for melanoma, requiring immediate evaluation in a construction worker with high sun exposure. Other options (dry skin, uniform spots, mild erythema) are benign or less concerning findings.
Core Nursing ExplanationKey Concept Analysis: This question assesses the nurse's ability to identify the most significant risk factor for skin cancer during a routine skin assessment. The core theme is recognizing the clinical signs of potential melanoma, the most dangerous form of skin cancer, using the ABCDE mnemonic. The patient's occupation as a construction worker indicates significant, chronic sun exposure, a major risk factor, making the identification of suspicious lesions a high priority.
Answer Rationale: Key Point! The correct answer describes moles that are irregular (Asymmetry), have an uneven border (Border irregularity), and have varying colors (Color variation). These are classic hallmarks of the ABCDE criteria used to screen for melanoma. In a patient with high occupational sun exposure, this finding is the most concerning and warrants immediate referral to a dermatologist for further evaluation (e.g., biopsy).
Distractor Analysis:
Watch out for confusion! Dry, flaky skin patches (option 2) are more indicative of conditions like xerosis (dry skin), eczema, or actinic keratosis (a precancerous lesion). While actinic keratosis is a risk factor for squamous cell carcinoma, it is not as immediately concerning for melanoma as a lesion meeting the ABCDE criteria.
Small, round, uniform brown spots (option 3) are typical of solar lentigines (sun spots) or common nevi (moles). Their uniformity and symmetry are reassuring features of benign lesions.
Mild erythema (option 4) is likely a sign of recent sunburn or mild irritation. While sunburn history is a risk factor for skin cancer, the acute finding itself is not a direct precursor lesion like an atypical mole.
Related Concepts: The nurse's role includes patient education on skin self-examination using the ABCDE rule, advocating for sun-protective behaviors (sunscreen, protective clothing), and understanding the increased risk associated with fair skin, family history, and extensive UV exposure.
Concept Summary
Concept
Description
Nursing Implication
ABCDE Rule
Asymmetry, Border irregularity, Color variation, Diameter >6mm, Evolving. Screening tool for melanoma.
Teach patients for self-assessment. Any positive finding requires professional evaluation.
Major Risk Factors
Chronic UV exposure, fair skin, family/personal history of skin cancer, numerous moles, atypical moles.
Target health teaching and encourage regular screenings for high-risk individuals.
Types of Skin Cancer
Melanoma: Most lethal, arises from melanocytes. Basal Cell Carcinoma (BCC): Most common, pearly nodule. Squamous Cell Carcinoma (SCC): Scaly, crusted patch.
Assessment varies: ABCDE for melanoma; look for non-healing sores or changing lesions for BCC/SCC.
Side-by-Side Comparison!
Feature
Benign Nevus (Common Mole)
Atypical Nevus (Dysplastic Nevus)
Melanoma
Shape
Round, symmetrical
Irregular, slightly asymmetrical
Very irregular, asymmetrical
Border
Smooth, well-defined
Indistinct or irregular
Ragged, notched, blurred
Color
Uniform brown/tan
Mixture of tan, brown, black
Varied: black, brown, tan, red, white, blue
Diameter
Usually < 6mm
Often > 6mm
Often > 6mm (but can be smaller)
Evolution
Stable over time
May change slowly
Changing in size, shape, color, or symptoms (itch, bleed)
Anatomy, Physiology & Pharmacology Points
Pathophysiology: Melanoma originates from melanocytes in the basal layer of the epidermis. UV radiation causes DNA damage in these cells, leading to uncontrolled proliferation.
Pharmacology (Prevention): Use of broad-spectrum sunscreen with SPF 30 or higher, which blocks both UVA (aging) and UVB (burning) rays, is a key preventive measure.
Memory Tips
ABCDE:Asymmetry, Border, Color, Diameter, Evolving. Remember: "A Bad Color Difference Evolves."
High-Risk Patient: Think "FAIR SKINNED": Fair skin, Aged (older), Immunosuppressed, Red/blonde hair, Sun exposure, Kinship (family history), Irregular moles, Numerous moles, Eye color (light), DNA repair defects.
High-Frequency NCLEX Topics
NCLEX frequently tests the nurse's ability to:
Prioritize patient care based on risk (e.g., a changing mole vs. dry skin).
Provide accurate patient education on prevention and early detection.
Watch Out for Question Variations!
From Symptom to Intervention: "The nurse identifies a mole meeting ABCDE criteria on a client. What is the priority nursing action?" (Answer: Document findings thoroughly and notify the healthcare provider for referral/evaluation.)
Patient Education Focus: "When teaching a client at high risk for skin cancer about self-examination, the nurse should instruct to report which finding?" (Answer: Any mole that is new, changing, or meets ABCDE criteria.)
Prevention Focus: "Which instruction is most important for the nurse to give a construction worker to prevent skin cancer?" (Answer: Use a broad-spectrum, water-resistant sunscreen with SPF 30+ and reapply every 2 hours, and wear protective clothing/hat.)
Nursing Clinical Practice GuideClinical Scenario: You are a nurse in an occupational health clinic. John, a 58-year-old construction foreman with fair skin and a history of frequent sunburns, comes in for his annual physical. During the skin check, you notice a new, 8mm mole on his upper back. It is asymmetrical, has a notched border, and appears dark brown in the center with lighter, reddish areas at the edges.
Nursing Intervention Strategy:
Assessment: Perform a full-body skin assessment in a well-lit room. Use the ABCDE rule to systematically describe the lesion. Ask John: "When did you first notice this? Has it changed in size, color, or shape? Does it itch or bleed?" Document the lesion's location, size, color, shape, and any patient symptoms with a body diagram.
Planning & Implementation: The priority is to facilitate further evaluation. Explain your concerning findings to John in a calm, factual manner without causing undue alarm. State, "I've noticed a mole that has some features we like to get checked by a skin specialist. It doesn't mean it's cancer, but it's important to be sure." Schedule a prompt referral to a dermatologist.
Patient Education: Reinforce sun safety: "Your job puts you at high risk. Wear a wide-brimmed hat, long sleeves, and pants when possible. Use a nickel-sized amount of SPF 30+ sunscreen on your face and a shot glass amount for your body, reapplying every two hours and after sweating." Teach him the ABCDE rule for monthly self-exams.
Evaluation: Ensure John understands the referral instructions, schedules and keeps the dermatology appointment, and can verbalize key points of sun protection and self-examination.
Patient Safety and Precautions:
Never attempt to diagnose a skin lesion. The nurse's role is assessment, documentation, and referral.
Ensure privacy and dignity during a full skin exam. Use drapes appropriately.
When documenting, avoid subjective terms like "cancer-looking." Use objective descriptors: "Asymmetrical macule with irregular border and variegated coloration."
Nursing Procedure & Medication FlowProcedure: Documenting a Skin Lesion
Obtain informed consent for the examination.
Use adequate lighting.
Measure the lesion's dimensions in millimeters.
Palpate to assess texture (smooth, rough, scaly) and elevation.
Compare it to other moles on the patient's body.
Photograph the lesion with a ruler in the frame, if clinic policy allows, for tracking changes.
Document using the ABCDE framework in the patient's record.
Medication (Sunscreen) Education:
Type: Recommend broad-spectrum (UVA/UVB protection), SPF 30 or higher, water-resistant.
Application: Apply generously 15-30 minutes before sun exposure to all exposed skin.
Reapplication: Reapply at least every 2 hours and immediately after swimming, toweling dry, or heavy sweating.
A Word from Your Senior Nurse
"Early detection of melanoma saves lives. As nurses, we are often the first to perform a comprehensive skin check. Trust your assessment skills when you see a lesion that 'just doesn't look right.' Your careful documentation and prompt action in seeking a specialist opinion can make all the difference for your patient. On the NCLEX, they are testing your clinical judgment—can you pick out the red flag from a list of normal variants? Think like a nurse: 'What finding poses the greatest potential threat to this patient's health?' That's always your priority."
ABCDE Rule — A mnemonic (Asymmetry, Border irregularity, Color variation, Diameter >6mm, Evolution) used to screen skin lesions for potential melanoma.
Melanoma — The most serious type of skin cancer that develops in melanocytes. It can spread rapidly if not detected early.
Dysplastic Nevus — An atypical mole that is irregular in appearance. It is a marker for an increased risk of melanoma.
Actinic Keratosis — A rough, scaly patch on sun-damaged skin. It is a precancerous lesion that can develop into squamous cell carcinoma.
Solar Lentigo — A benign, flat, brown spot caused by sun exposure (liver spot or sun spot). It is uniform in color and not cancerous.