Final answer:
Normal capnography levels for measuring CO2 in respiratory gases range between 35-48 mm Hg for males and 32-45 mm Hg for females, which help in identifying respiratory issues like hypercapnia or hypocapnia.
Step-by-step explanation:
Normal levels of capnography, which measure the partial pressure of carbon dioxide (CO2) in respiratory gases, are often assessed using reference values for arterial blood gases. According to reference values, the normal range for arterial partial pressure of CO2 (pCO2) is between 35-48 mm Hg for males and 32-45 mm Hg for females. These levels are important indicators of respiratory efficiency and can suggest the presence of conditions such as hypercapnia (elevated CO2 levels) or hypocapnia (reduced CO2 levels), which may occur due to various underlying health issues.