Blood serum concentrations are much lowerâonly about 0.4% of the body's potassium is found in blood serum. As noted above, hypokalemia can be caused by the sudden uptake of potassium ions from the bloodstream by muscle or other organs or by an overall depletion of the body's potassium.
Early symptoms of the flu may include conditions such as excessive or sudden fatigue or body aches and chills, according to Healthline. While fatigue can be an early symptom of a cold, in people who have the flu, the fatigue is much worse.
Flu symptoms appear anywhere from 1 to 4 days after a person has been exposed to the virus. The main symptoms of flu are: headache; sore throat; fever; chills; muscle aches; stuffy nose; dry cough; Someone with the flu may have a high fever â for example, that person's temperature may be around 104Â°F (40Â°C). People with the flu often feel achy and extra tired. They may lose their appetites. The fever and aches usually disappear within a few days, but the sore throat, cough, stuffy nose ...