A chloride blood test, or serum chloride level, can be part of a comprehensive or basic metabolic panel. Some health conditions, including dehydration, can affect chloride levels. Chloride is an ...

The signs of low ferritin, a protein that stores iron in your body, include fatigue, dizziness, and headaches. High ferritin can cause stomach pain, heart palpitations, joint pain, and more. To test ...

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A brain natriuretic peptide (BNP) blood test measures the levels of BNP in a person’s blood. Doctors use BNP tests to indicate how well the heart is pumping blood throughout the body. Many healthcare ...