Piaget's theory of development mostly concerns with cognitive develompent in children, either quantitative or qualitative. Under his theory, there are many different phenomena that we can test today and see on which stage of cognition a child is.
If the child’s urine output decreases to less than 100ml/24
hr and the creatinine clearance is 69 ml/min, plus an irregular apical pulse
with a diagnosis of acute renal failure, the serum level requires immediate
intervention is a potassium 6.1 mEq/L.
