What causes high red blood cell count in blood tests?
Apr 07, 2023
Source: Cainiu Health
Dr. Zhang Heyang
Introduction
Elevated red blood cells in a blood test may be due to physiological reasons, such as reduced fluid intake the previous night leading to hemoconcentration, or pathological causes like acute gastroenteritis or chronic bronchial asthma. In addition, elevated red blood cells could indicate myeloproliferative disorders, and it is important to seek timely medical evaluation for thorough examination. Appropriate treatment should be selected based on the specific diagnosis.
Elevated red blood cells in a blood test may result from physiological causes, such as reduced fluid intake the previous night leading to hemoconcentration, or from pathological causes, such as acute gastroenteritis or chronic bronchial asthma.
I. Physiological Causes
Reduced water intake the previous night can lead to concentrated blood. When a complete blood count (CBC) is performed in the morning, an increased red blood cell count may be observed. If there are no symptoms or discomfort, specific treatment is usually unnecessary. Drinking more fluids typically resolves the condition.
II. Pathological Causes
1. Acute Gastroenteritis
Consuming contaminated food can easily trigger acute gastroenteritis, which commonly causes vomiting and diarrhea, leading to dehydration. A CBC may show elevated red blood cell levels due to hemoconcentration. Under medical guidance, medications such as metoclopramide tablets or montmorillonite powder can be used for treatment. Prompt rehydration usually alleviates the condition.
2. Chronic Bronchial Asthma
In patients with pre-existing chronic bronchial asthma, episodes can cause prolonged oxygen deficiency in the body, which may stimulate increased red blood cell production. It is important to follow a doctor’s advice and use medications such as budesonide inhaler or terbutaline sulfate inhaler for timely treatment.
Besides the above, elevated red blood cells may also indicate myeloproliferative disorders. It is essential to seek prompt medical evaluation at a hospital for thorough examination and, based on the diagnosis, receive appropriate treatment.
