Medicine All of the following statements about central cyanosis are true Except: A Central cyanosis becomes evident when reduced haemoglobin < 5gldl B Chronic Asthma may cause central cyanosis C Alveolar Hypoventilation causes central cyanosis D Methemoglobinemia causes central cyanosis 💡 Explanation All of the following statements about central cyanosis are true Except: ✓ Correct Answer: A. Central cyanosis becomes evident when reduced haemoglobin < 5gldl