Dizziness and Low Hemoglobin: When to Seek Medical Help - Internal Medicine

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Dizziness, hemoglobin level 11.0?


Hello Doctor: I previously donated blood multiple times in June 2006, and my hemoglobin levels were always within the standard range.
Recently, when I went to donate blood, the nurse informed me that my hemoglobin was 11.0, which does not meet the standard for donation.
For the past month, I have frequently felt dizzy, especially when standing up after sitting or squatting.
This happens almost every day.
I am unsure if this is due to anemia.
Should I seek medical attention, or do I need to supplement anything?

A-Hua, 30~39 year old female. Ask Date: 2007/06/20

Dr. Wang Fangli reply Internal Medicine


Hello Ahua: A hemoglobin level of 11.0 indicates anemia.
Please visit the hospital to investigate the cause of the anemia and receive appropriate treatment.
96.6.22 Hualien Hospital, Wang Fangli.

Reply Date: 2007/06/20

More Info


Dizziness and low hemoglobin levels can be concerning symptoms that warrant medical attention. In your case, the reported hemoglobin level of 11.0 g/dL is indeed below the normal range for adult males, which typically falls between 13.5 to 17.5 g/dL. This low hemoglobin level can lead to anemia, which is a condition characterized by a deficiency in the number or quality of red blood cells, resulting in reduced oxygen delivery to tissues.
The dizziness you are experiencing, especially when standing up from a sitting or squatting position, could be related to several factors, including anemia. When hemoglobin levels are low, the body may struggle to supply adequate oxygen to the brain, leading to symptoms such as dizziness or lightheadedness. This phenomenon is often exacerbated by postural changes, which can cause a temporary drop in blood pressure, known as orthostatic hypotension.

Given your symptoms and the low hemoglobin level, it is advisable to seek medical evaluation. A healthcare provider will likely perform a thorough assessment, including a complete blood count (CBC) to confirm the anemia and determine its severity. Additionally, they may investigate the underlying cause of your low hemoglobin levels, which could include nutritional deficiencies (such as iron, vitamin B12, or folate), chronic diseases, or other hematological conditions.

In terms of management, if anemia is confirmed, treatment will depend on the underlying cause. For instance, if iron deficiency is identified, iron supplementation and dietary modifications may be recommended. Foods rich in iron include red meat, poultry, fish, lentils, beans, and fortified cereals. If vitamin B12 deficiency is the issue, dietary changes or B12 injections may be necessary.

It's also important to monitor your symptoms closely. If you experience worsening dizziness, fainting, or any other concerning symptoms, you should seek immediate medical attention. In some cases, severe anemia may require more urgent interventions, such as blood transfusions or other treatments.

In summary, your symptoms of dizziness combined with a low hemoglobin level suggest that you should consult with a healthcare professional. They can provide a comprehensive evaluation and appropriate management to address your anemia and alleviate your symptoms. Remember, early intervention is key to preventing potential complications associated with untreated anemia.

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