Which of the following is a normal range for hemoglobin in an adult male?

The normal range for hemoglobin in an adult male is indeed 13-18 g/dL. Hemoglobin is a crucial protein in red blood cells responsible for transporting oxygen throughout the body. Its levels can vary based on factors such as age, sex, and altitude.

For adult males, the specified range reflects what is typically considered normal physiological levels. Hemoglobin levels below this range may indicate anemia, which can result from various conditions such as nutritional deficiencies, chronic diseases, or bone marrow disorders. Conversely, levels above this range might suggest conditions like polycythemia, where there is an increased concentration of red blood cells.

Understanding the normal hemoglobin range is essential for various clinical assessments and interventions, particularly in vascular interventions, where oxygen-carrying capacity is critical. Monitoring hemoglobin levels helps healthcare professionals evaluate a patient's oxygenation status and guide treatment decisions effectively.