Definition. CO2 is carbon dioxide. This article discusses the laboratory test to measures the amount of carbon dioxide in the liquid part of your blood, called the serum. In the body, most of the CO2 is in the form of a substance called bicarbonate (HCO3-). Therefore, the CO2 blood test is really a measure of your blood bicarbonate level.
Potassium can cause stomach upset, nausea, diarrhea, vomiting, intestinal gas, and other side effects. Too much potassium is UNSAFE and can cause feelings of burning or tingling, generalized weakness, paralysis, listlessness, dizziness, mental confusion, low blood pressure, irregular heart rhythm, and death.
High Potassium Levels. Excess potassium in your system can also lead to health complications. Called hyperkalemia, high potassium levels usually do not result in obvious symptoms, although, in some cases, you may experience nausea or a slowed, irregular pulse and heart rate.s an electrolyte, potassium helps conduct electricity in your body. In particular, it helps with proper heart functioning, because poor potassium levels -- either too much or too little -- can dangerously affect your health, including potentially causing a weak heart rate.