In patients with deeply pigmented skin, changes in color may be apparent only in certain areas, such as the:

In patients with deeply pigmented skin, changes in color may be apparent only in certain areas, such as the:

• A. Lips, Sclera, or Oral Mucosa
• B. Nail Beds Only
• C. Palms and Soles
• D. Earlobes and Cheeks

Answer: (A)

Color changes in deeply pigmented skin show up best where pigment is minimal or the tissue is thin, so the blood’s color can show through more clearly. The lips, the sclera of the eyes, and the inside of the mouth (oral mucosa) fit that pattern. These areas lack heavy pigment and are relatively thin, so signs of cyanosis, jaundice, or pallor become visible there even when the surrounding skin looks normal. In contrast, areas like nail beds, palms and soles, or earlobes and cheeks have more pigment or thicker skin, which can mask color changes. So changes are most evident in the lips, sclera, and oral mucosa.

Color changes in deeply pigmented skin show up best where pigment is minimal or the tissue is thin, so the blood’s color can show through more clearly. The lips, the sclera of the eyes, and the inside of the mouth (oral mucosa) fit that pattern. These areas lack heavy pigment and are relatively thin, so signs of cyanosis, jaundice, or pallor become visible there even when the surrounding skin looks normal. In contrast, areas like nail beds, palms and soles, or earlobes and cheeks have more pigment or thicker skin, which can mask color changes. So changes are most evident in the lips, sclera, and oral mucosa.