Which grade of anemia needs a blood transfusion?

Hi,

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I hope you are fine and safe from the pandemic.

The data you provided in quantitative and qualitative terms indicate mixed micronutrient deficiency, especially iron, vitamin B12, folic acid, and pyridoxine. Get it treated according to local guidelines. For gastritis, rule out Helicobacter pylori infection. Get an H. pylori antigen in stool and an endoscopy, and share the reports.

Low hemoglobin is also called anemia.

Grade 1 anemia: Hemoglobin less than usual for age and gender, up to 9.9 g/dL. It is mild anemia. No investigation is needed. Just improve diet and give hematinics. Rule out renal disease, liver disease, thyroid disease, thalassemia minor, or any drug-induced cause.

Grade 2 anemia: Hemoglobin ranges from 8.9 to 9.8 g/dL. It is moderate anemia. Investigate the cause, which might include combined nutritional deficiency or other reasons mentioned above. No blood transfusion is needed at this level.

Grade 3 anemia: Hemoglobin ranges from 7.9 to 8.8 g/dL. It is moderately severe anemia. Causes may be hemolysis and acute or chronic blood loss, along with the causes mentioned above. No need for transfusion at this level unless a surgical emergency is there. Treat the cause.

Grade 4 anemia: Hemoglobin ranges from 6.9 to 7.8 g/dL. It is severe anemia. However, no transfusion is needed even at this level unless there is some surgical emergency. Causes include thalassemia intermedia or major, G6PD (glucose-6-phosphate dehydrogenase) deficiency, hereditary spherocytosis, and the above-mentioned ones.

Grade 5 anemia: Hemoglobin level 5.9 to 6.8 g/dL. It is a very severe anemia. You may need a blood transfusion according to the cause. If there is a production disorder, transfuse the patient. Transfusion in thalassemia major. There is no need for transfusion in a mere combined nutritional deficiency or renal disease. Also, assess the cardiovascular system at this level.

Critically low hemoglobin or grade 6 anemia: Hemoglobin level less than 5 g/dL. Transfusion is needed regardless of the cause. For example, consider PRCA (pure red cell aplasia), thalassemia major, and aplastic anemia.

The workup for anemia includes a CBC (complete blood count) with red-cell indices, platelets, reticulocytes, and peripheral blood smear report; LDH (lactate dehydrogenase) hematuria workup; melena, hematemesis, or hemoptysis workup; bone marrow biopsy report, ferritin, vitamin B12, and RBC (red blood cells); folate levels; RFTs (renal function tests); and LFTs (liver function tests).

I hope it helps.

Thank you.