Last Updated on December 10, 2024 by Analgesia team
Post Hb Meaning Medical
Post transfusion (Hb) or post Hb is a measurement of hemoglobin levels after a blood transfusion. Hemoglobin is a protein in red blood cells that carries oxygen throughout the body.
Hemoglobin levels are often checked after a transfusion to assess the effectiveness of the transfusion and to identify under- or over transfusion. Some providers check hemoglobin levels 4 to 8 hours after a transfusion, while others wait 24 hours or until the next morning. Hemoglobin measurements taken at hospital discharge may be more accurate than those taken early after surgery because they account for ongoing fluid resuscitation and bleeding.
Hemoglobin levels can also be measured postpartum to identify postpartum anemia. Postpartum anemia is defined as a hemoglobin level of less than 11 grams per deciliter (g/dL). It can affect up to 50% of women 24 to 48 hours after delivery. Postpartum anemia has been linked to a number of health issues, including depression, reduced cognition, and fatigue.
How to measure the hemoglobin levels after a blood transfusion
Hemoglobin levels after a blood transfusion can be measured by taking a blood sample and combining it with a liquid that binds to hemoglobin molecules. The amount of light absorbed by the resulting solution is then used to determine the hemoglobin levels. This can be done as part of a complete blood count (CBC).