The Fatigue Test Panel is a comprehensive set of laboratory tests designed to investigate common causes of fatigue, a pervasive and often challenging symptom to diagnose due to its nonspecific nature and multiple potential causes.

The Hemoglobin Test measures the amount of hemoglobin in blood, the protein that carries oxygen to tissues. Low hemoglobin may indicate anemia, blood loss, or nutritional deficiencies, while high levels may suggest dehydration, lung disease, or bone marrow disorders. Doctors order this test to evaluate fatigue, weakness, or shortness of breath. Results provide key insight into oxygen transport, red blood cell health, and overall hematologic function.