Here are a few other reasons your doctor may order an Hgb test: Abnormal levels of any of these cells can indicate underlying conditions or blood disorders. A CBC test also measures other important components of your blood, such as white blood cells and platelets. The Hgb test may be ordered as part of a complete blood count (CBC) test. If you’re sensitive to getting blood drawn or the sight of blood, have someone come with you and let your provider know. The needle may cause brief discomfort, but the insertion usually lasts less than a minute. The sample is then stored in the tube to be analyzed later at a lab.
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To take a sample, your healthcare professional extracts blood from a vein by pricking your finger or inserting a needle with an attached tube into the crease of your arm. The Hgb test uses a sample of your blood to determine hemoglobin levels. Learn why you may need an Hgb test, what the typical ranges are for Hgb, and what can cause abnormal Hgb levels. You may have an underlying condition that needs to be diagnosed. Your doctor may suggest an Hgb test if you’re experiencing these symptoms. Hgb is what makes red blood cells look red.Ībnormally high or low Hgb can cause symptoms like exhaustion, dizziness, or shortness of breath. It also transports carbon dioxide (CO 2) from around your body back to your lungs through your veins. It helps red blood cells transport oxygen from your lungs to your body through your arteries. Hgb is a protein produced by your bone marrow that’s stored in red blood cells. The hemoglobin (Hgb) test measures how much hemoglobin your red blood cells contain. High or low results may occur with certain health conditions, including anemia, internal bleeding, and diseases affecting the heart, lungs, or kidneys. The typical range for Hgb varies by age, sex, and whether you are pregnant.
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