NU673 FINAL MOST TESTED QUESTIONS AND ANSWERS GRADED A+ WITH RATIONALES

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NU673 FINAL MOST TESTED QUESTIONS AND ANSWERS
GRADED A+ WITH RATIONALES
1. What are the three major types of skin cancer?

 A) Basal cell carcinoma, squamous cell carcinoma, and lymphoma

 B) Basal cell carcinoma, squamous cell carcinoma, and melanoma

 C) Melanoma, lymphoma, and leukemia

 D) Basal cell carcinoma, melanoma, and sarcoma

Answer: B) Basal cell carcinoma, squamous cell carcinoma, and melanoma
Rationale: These are the three most common types of skin cancer, with melanoma being the
most lethal.



2. Which type of skin cancer is the most common but least likely to metastasize?

 A) Squamous cell carcinoma

 B) Basal cell carcinoma

 C) Melanoma

 D) Lymphoma

Answer: B) Basal cell carcinoma
Rationale: Basal cell carcinoma accounts for 80% of skin cancers and rarely metastasizes.



3. Which type of skin cancer is characterized by crusted, scaly, and ulcerated lesions?

 A) Basal cell carcinoma

 B) Squamous cell carcinoma

 C) Melanoma

 D) Lymphoma

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Answer: B) Squamous cell carcinoma
Rationale: Squamous cell carcinoma often presents as crusted, scaly, and ulcerated lesions and
can metastasize.



4. Which type of skin cancer is the most lethal and spreads rapidly?

 A) Basal cell carcinoma

 B) Squamous cell carcinoma

 C) Melanoma

 D) Lymphoma

Answer: C) Melanoma
Rationale: Melanoma is the most aggressive and lethal form of skin cancer, with a high
potential for metastasis.



5. What is the outermost layer of the skin called?

 A) Dermis

 B) Epidermis

 C) Subcutaneous tissue

 D) Hypodermis

Answer: B) Epidermis
Rationale: The epidermis is the thin, outermost layer of the skin, composed of keratinized
epithelium.



6. Which layer of the skin contains sebaceous glands, sweat glands, and hair follicles?

 A) Epidermis

 B) Dermis

 C) Subcutaneous tissue

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 D) Hypodermis

Answer: B) Dermis
Rationale: The dermis is the middle layer of the skin, containing connective tissue, glands, and
hair follicles.



7. What is the subcutaneous tissue primarily composed of?

 A) Keratin

 B) Collagen

 C) Fatty tissue

 D) Elastic fibers

Answer: C) Fatty tissue
Rationale: The subcutaneous tissue, or hypodermis, is primarily composed of fat that provides
insulation and cushioning.



8. What does cyanosis indicate?

 A) Increased oxygen in the blood

 B) Decreased oxygen in the blood or poor circulation

 C) High blood pressure

 D) Skin cancer

Answer: B) Decreased oxygen in the blood or poor circulation
Rationale: Cyanosis is a bluish discoloration of the skin caused by low oxygen levels or reduced
blood flow.



9. Which glands are responsible for adult body odor?

 A) Sebaceous glands

 B) Eccrine glands

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 C) Apocrine glands

 D) Sweat glands

Answer: C) Apocrine glands
Rationale: Apocrine glands, found in the axillary and genital regions, produce sweat that
contributes to body odor.



10. Which glands help control body temperature by producing sweat?

 A) Sebaceous glands

 B) Eccrine glands

 C) Apocrine glands

 D) Hair follicles

Answer: B) Eccrine glands
Rationale: Eccrine glands are widely distributed and produce sweat to regulate body
temperature.



11. What is the ABCDE rule used for?

 A) Diagnosing basal cell carcinoma

 B) Identifying suspicious moles or melanoma

 C) Assessing skin hydration

 D) Evaluating skin infections

Answer: B) Identifying suspicious moles or melanoma
Rationale: The ABCDE rule helps identify potential melanoma by evaluating asymmetry, border
irregularity, color variation, diameter, and evolution.



12. What does the "A" in the ABCDE rule stand for?

 A) Asymmetry