Which of the following is a sign of anemia?

• A. Pale conjunctiva
• B. Weight gain
• C. Hypertension
• D. Polyuria

Answer: (A)

Pallor from low hemoglobin is a classic sign of anemia. When red blood cells and hemoglobin are reduced, the blood appears less reddened, and the mucous membranes and skin look paler. The conjunctiva is an especially good place to notice this pallor because the thin mucosa shows color changes clearly. That makes pale conjunctiva the best indicator of anemia among the choices. Weight gain, hypertension, and polyuria are not typical signs of anemia; they suggest other problems such as fluid/metabolic issues, high blood pressure, or diabetes, respectively.