The ABCD method offers one way to assess skin lesions for possible skin cancer. What does the A stand for?

Correct Answer: B

Rationale: The correct answer is B: Asymmetry. In the ABCD method for assessing skin lesions, A stands for asymmetry, which refers to whether one half of the lesion looks different from the other half. This is important because asymmetrical lesions are more likely to be cancerous. Actinic (choice A) refers to sun damage, Arcus (choice C) refers to a condition affecting the eyes, and Assessment (choice D) is a general term that does not specifically relate to the characteristics of skin lesions.

Correct Answer: D

Rationale: The correct answer is D, "All of the above." Malignant melanoma, basal cell epithelioma, and squamous cell carcinoma are all types of skin cancer associated with prolonged sun exposure. Melanoma is the most dangerous form, while basal cell and squamous cell carcinomas are more common but less aggressive. Sun exposure can lead to DNA damage in skin cells, increasing the risk of developing these types of cancers. Therefore, all three choices are correct as they are all linked to sun exposure. The other choices are incorrect because each type of skin cancer mentioned can be caused by prolonged sun exposure, so selecting any one of them individually would not fully capture the scope of the risks associated with sun exposure.

Correct Answer: B

Rationale: The correct answer is B because a fixed nodular mass with dimpling of the overlying skin is a classic sign of breast cancer. This finding is concerning as it indicates an abnormal growth that has invaded surrounding tissues. Dimpling occurs due to fibrotic changes pulling on the skin. Choices A, C, and D are incorrect. A slight asymmetry of the breasts is common and not necessarily indicative of cancer. Bloody discharge from the nipple can be a sign of other conditions like intraductal papilloma. Multiple firm, round, freely movable masses that change with the menstrual cycle are likely benign fibrocystic changes.

Correct Answer: A

Rationale: Rationale for Correct Answer (A): Prostate-specific antigen (PSA) is a protein produced by the prostate gland. It is primarily used to screen for prostate cancer by measuring the levels of PSA in the blood. PSA levels can help detect prostate cancer early. Therefore, choice A is the correct answer as it accurately describes PSA and its primary use. Summary of Incorrect Choices: B: Protein serum antigen is not a commonly known term in healthcare. There is no specific antigen called "protein serum antigen" used to determine protein levels. C: Pneumococcal strep antigen is a bacterial antigen that causes pneumonia, not related to PSA used in prostate cancer screening. D: Papanicolua-specific antigen is not a recognized term. The Papanicolaou test (Pap smear) is used for cervical cancer screening, not a specific antigen like PSA.

Correct Answer: C

Rationale: The correct answer is C: Apply a cream or lotion to the area. This is because radio-dermatitis is a common side effect of radiation therapy, causing skin irritation and dryness. Applying a cream or lotion helps to moisturize the skin, reduce inflammation, and promote healing. Washing the area with soap can further irritate the skin. Leaving the skin alone may prolong discomfort and delay healing. Avoiding creams or lotions can worsen dryness and discomfort. Overall, applying a suitable cream or lotion is the most effective method to alleviate symptoms and support skin recovery in radio-dermatitis.