Alpha hemolysis results will not results complete destruction of red blood cells and a clear zone on blood agar.

A. 31.5 %: Underestimates TBSA; likely missed one major area such as the anterior torso or leg portion.

B. Using the Rule of Nines for adults: Entire front of torso (anterior trunk) = 18%, entire right arm = 9%; front of right leg (anterior half of one leg) = 9%; face and front of neck (anterior head/neck) = 4.5%. Total TBSA = 18 + 9 + 9 + 4.5 = 40.5%

C. 49.5 %: Overestimates TBSA; may have incorrectly counted the entire leg (18%) instead of just the front (9%).

D. 36 %: Slight underestimation; possibly omitted the face/neck portion (4.5%).

A. Development of an odd-shaped lesion or new mole is correct because new or unusually shaped lesions can indicate abnormal cell growth. The appearance of a mole that differs from existing moles (the “ugly duckling” sign) is a warning sign of potential skin cancer.

B. A lesion that does not heal is correct because non-healing sores, ulcers, or lesions can indicate skin malignancy, particularly squamous cell carcinoma or melanoma. Persistent lesions should be evaluated promptly.

C. A change in the shape, color, or size of a mole is correct because changes in a mole are part of the ABCDE warning signs of melanoma. Rapid changes or irregular features are concerning for malignancy.

D. Freckles that darken slightly with sun exposure is incorrect because normal freckles darken with UV exposure but are not considered warning signs. This is a physiologic response to sunlight, not indicative of cancer.

E. Skin lesions that repeatedly bleed is correct because recurrent bleeding, especially from a mole, lesion, or sore, is a classic warning sign of malignant transformation. Bleeding often occurs due to fragile, abnormal blood vessels within the lesion.