By Michelle Andrews. + More. This week's report linking higher blood sugar levels with lower brain function in people with type 2 diabetes probably sent many people to their computers to research ways to reduce their A1C levels, a measurement of average blood sugar over time.
Making the world better, one answer at a time. Anion means the ion has a negative charge. The most common extracellular anion in the human body is chlorine. Most common cations are sodium, potassium, and calcium.
The most abundant cation in extracellular fluid is potassium. False. The most abundant cation (or positively charged ion) in the extracellular fluid (ECF) is sodium (Na+). The most abundant anion (or negatively charged ion) in the ECF is chloride (Cl-). The most abundant cation in the intracellular fluid (ICF) is potassium (K+). The most abundant anion in the ICF is hydrogen phosphate (HPO4-).