Hypokalemia does not usually cause symptoms of yellow urine.
Common clinical manifestations of hyperkalemia include muscle weakness and episodes of flaccid paralysis in the neuromuscular system, various arrhythmias and conduction blocks due to reduced myocardial stress, potassium deficiency nephropathy due to renal tubular damage caused by prolonged hyperkalemia, and finally lack of appetite and paralytic intestinal obstruction, which do not usually result in the appearance of yellowish color in the urine.
Hypokalemia is the result of prolonged insufficient potassium intake, excessive potassium excretion, and abnormal distribution of potassium ions. It is common in patients who are unable to import food and require parenteral or intravenous nutrition to maintain functioning, as well as in patients who vomit profusely.
Symptoms of hyperkalemia should be treated aggressively under medical supervision.