DKA is a state of decreased insulin; since we know that insulin causes a shift of K+ into the cells low levels of insulin will prevent this and result in hyperkalemia. In addition, due to hyperglycemia and high ECF osmolality water will shift out of the cells into the ECF and K+ shifts out with the water which will futher increase the hyperkalemia
Why would there be hyperkalemia if total body potassium is decreased in DKA?
I understand why K+ is increased. But why isn't chloride also increased? This is a metabolic acidosis, so bicarb will be low and H+ will be high. You need an ion to balance charges --> increased chloride?
totally buy the answer of K+ being increased, but can somebody explain why her extreme dehydration (decreased skin turgor, excess urine output) wouldn't lead to an increase in serum [Na+]?
submitted by kobeandming23(8)
DKA (acidosis) > Potassium shifts out of the cell > hyperkakemia
FA 2019, pg 578