What is the normal range for hemoglobin (Hgb) levels?

The normal range for hemoglobin levels varies slightly between individuals, but generally, it is considered to be between 12 and 18 grams per deciliter (g/dL) for most adult populations. This range can differ based on factors such as age, sex, altitude, and individual health conditions.

Hemoglobin is a critical component of red blood cells, responsible for transporting oxygen from the lungs to the rest of the body and returning carbon dioxide back to the lungs for exhalation. Maintaining hemoglobin within this normal range is important for ensuring adequate oxygen delivery to tissues, which is vital for sustaining metabolic processes and overall health.

Levels below or above this range may indicate conditions such as anemia or polycythemia, respectively, and require further investigation and monitoring. Understanding these values is therefore crucial for nurses and healthcare providers when assessing a patient's health status.