The copper sulphate method is a simple and quick test used to check whether a blood donor has a healthy hemoglobin level before donating blood. A drop of the donor’s blood is released into a copper sulphate solution of a known specific gravity. If the blood drop sinks, it means the hemoglobin level is adequate for donation. If the blood floats or sinks slowly, the donor may have low hemoglobin and is not eligible to donate. This method is commonly used because it is fast, inexpensive, and does n
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The copper sulphate method is a simple and quick test used to check whether a blood donor has a healthy hemoglobin level before donating blood. A drop of the donor’s blood is released into a copper sulphate solution of a known specific gravity. If the blood drop sinks, it means the hemoglobin level is adequate for donation. If the blood floats or sinks slowly, the donor may have low hemoglobin and is not eligible to donate. This method is commonly used because it is fast, inexpensive, and does n
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