What Should Seniors Know About Anemia and Its Treatment?
Anemia is common in seniors, affecting about 10 percent of adults over 65 and higher percentages in older age groups. This condition, characterized by low red blood cells or hemoglobin, causes fatigue, weakness, and other symptoms that significantly impact quality of life. Understanding anemia helps seniors recognize symptoms and seek appropriate treatment.
Understanding Anemia
Anemia occurs when blood lacks adequate healthy red blood cells to carry oxygen throughout the body. Red blood cells contain hemoglobin, the protein that binds oxygen and delivers it to tissues. When hemoglobin levels fall below normal, tissues do not receive enough oxygen, causing symptoms.
Anemia is defined by hemoglobin levels below 12 grams per deciliter in women and below 13 grams per deciliter in men. Severity ranges from mild, which may cause no symptoms, to severe, which can be life-threatening.
Causes of Anemia in Seniors
Multiple causes contribute to senior anemia. Iron deficiency anemia results from inadequate iron intake, poor absorption, or chronic blood loss often from gastrointestinal sources. This is the most common type and is usually treatable once the cause is identified.
Vitamin B12 and folate deficiencies cause anemia when these nutrients needed for red blood cell production are inadequate. B12 absorption decreases with age and certain medications. Dietary deficiency is less common but occurs in restrictive diets.
Anemia of chronic disease occurs with long-term inflammatory conditions, kidney disease, and cancer. The body produces fewer red blood cells in response to ongoing illness. This type improves when underlying conditions are treated.
Bone marrow problems including myelodysplastic syndromes become more common with age and impair blood cell production. Some medications suppress bone marrow function. Cancers affecting bone marrow cause anemia through various mechanisms.
Symptoms of Anemia
Fatigue is the hallmark anemia symptom. Seniors may feel exhausted despite adequate rest. Weakness and decreased exercise tolerance develop as tissues receive less oxygen. Shortness of breath, especially with activity, results from the body trying to compensate for reduced oxygen delivery.
Other symptoms include pale skin, dizziness or lightheadedness, cold hands and feet, headaches, and rapid heartbeat. Cognitive effects including poor concentration and confusion may occur. Symptoms often develop gradually, making them easy to dismiss as normal aging.
Diagnosis
Simple blood tests diagnose anemia and help identify its cause. Complete blood count measures hemoglobin, hematocrit, and red blood cell characteristics. Additional tests may include iron studies, vitamin B12 and folate levels, kidney function tests, and reticulocyte counts that show bone marrow response.
Finding the cause of anemia is essential for proper treatment. Unexplained anemia may require further investigation including endoscopy to look for gastrointestinal bleeding or bone marrow biopsy to evaluate blood cell production.
Treatment Options
Treatment depends on the cause. Iron deficiency anemia is treated with iron supplements and addressing the source of blood loss. Vitamin deficiencies are corrected with supplements, sometimes requiring injections when absorption is impaired.
Anemia of chronic disease improves when underlying conditions are better controlled. Erythropoiesis-stimulating agents may be prescribed for kidney disease-related anemia. Severe anemia may require blood transfusions. Bone marrow disorders may need specialized hematology treatment.
Getting Evaluated
All Seniors Foundation encourages seniors experiencing fatigue or weakness to be evaluated for anemia. This treatable condition significantly affects quality of life when unaddressed. Contact us to learn about accessing medical evaluation for anemia symptoms.
