abnormal potassium concentrations的用法和样例：
- Qinghai yaks of plateau type were used to investigate the polymorphism of erythrocyte potassium concentration by means of flame photometer.
- Influences of acute metabolic acidosis and epinephrine on plasma potassium concentration in dogs.
- The 24-hour excretion of potassium, magnesium and phosphate, corrected for body size, together with urinary potassium concentration decreased progressively with age.
- The surviving time upon heat exposure and the swimming time were examined and the physiologic and biochemical changes such as body weight, potassium concentration, blood sugar, hemoglobin were compared before and after heat exposure.
- The weather is abnormal this year.