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.
International vs. Domestic Flights. Generally speaking, you must arrive at the airport one hour in advance of domestic flights and two hours in advance of international flights. What you should keep in mind, however, is that unless the international portion of your travel is nonstop from your origin city, you need only follow domestic flight guidelines.