Total Hemoglobin and Hematocrit Profile (Serum/Plasma Electrophoresis-Based Index)

What This Test Measures

Hemoglobin is the protein in red blood cells that carries oxygen throughout your body. Hematocrit is the percentage of blood volume made up of red blood cells. Together, they reflect your body’s ability to transport oxygen efficiently. This test may also include qualitative or semi-quantitative analysis of red blood cell distribution or morphology, often evaluated alongside electrophoresis results for conditions like hereditary hemolytic anemia or thalassemia.

Why It’s Done

Doctors order this test to diagnose or monitor conditions like anemia (low hemoglobin/hematocrit), polycythemia (high levels), or to evaluate blood loss from bleeding disorders, chronic diseases, or dehydration. It may also be used in screening for genetic blood disorders or during pregnancy to check for iron deficiency.

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For this test, a blood sample is drawn from a vein, typically in the arm. The sample is processed to separate serum or plasma for analysis. If electrophoresis is part of the test, the sample may be further examined for red blood cell protein patterns (e.g., hemoglobin variants). Avoid alcohol or strenuous activity 24 hours before testing to ensure accurate results.

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There are no special preparations needed beyond standard precautions. If you’re taking blood thinners or have a history of bleeding, inform your healthcare provider. For children or anxious patients, a pediatrician may use a smaller needle or distraction techniques.