Which of the following is a sign of lead poisoning?

• A. Excessive thirst
• B. Pale skin and fatigue
• C. Severe headaches
• D. Rapid heartbeat

Answer: (B)

Pale skin and fatigue are classic signs of lead poisoning, particularly in individuals with significant or chronic exposure. Lead interferes with the body’s ability to produce hemoglobin, which can lead to anemia. This condition often manifests as pallor (pale skin) and general fatigue due to the decreased oxygen-carrying capacity of the blood. Other symptoms of lead poisoning can include abdominal pain, irritability, and developmental delays in children.

The other options do not directly correlate with typical signs of lead poisoning. Excessive thirst, while a symptom in various conditions, is not commonly associated with lead toxicity. Severe headaches can occur from a variety of causes but are not specific to lead exposure. A rapid heartbeat may occur in situations of anxiety or stress, but it does not specifically indicate lead poisoning. Recognizing the correct signs of lead toxicity is crucial for appropriate diagnosis and treatment in affected individuals.