The lungs and kidneys are the major organs involved in regulating blood pH. 1  The lungs flush acid out of the body by exhaling CO 2. 2  The kidneys excrete acids in the urine, and they regulate the concentration of bicarbonate (HCO 3 - , a base) in blood.
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Phone Numbers and Support. The Target Card Customer Service is there for you if you cannot find answers to what you require at the website. Here are some important numbers to be aware of: Customer Service/ Credit Card Services. In the US- 1-888-755-5856. Outside of the US-1-612-307-8622.