Low potassium (hypokalemia) refers to a lower than normal potassium level in your bloodstream. Potassium is a chemical (electrolyte) that is critical to the proper functioning of nerve and muscles cells, particularly heart muscle cells. Normally, your blood potassium level is 3.6 to 5.2 millimoles per liter (mmol/L).
If it's your first time to that airport maybe two hours for a domestic flight and three for an international flight. If you've been to this â¦airport before an hour and a half (maybe less if you don't intend to check bags) for a domestic flight.
Some sources such as Los Angeles International Airport and American Airlines advise customers to arrive only two hours early for most international flights. American Airlines lists some international destinations such as Mexico and the Carribean for which passengers should arrive three hours early. Thinkstock/Stockbyte/Getty Images.