A client with cirrhosis who was admitted for bleeding esophageal varices, awaiting endoscopy and ligation of varices

A client with polycystic kidney disease was admitted for kidney stones, complaining of a severe headache.

A client is in the last phase of an acute kidney injury with a normal creatinine blood test.

A client admitted with a low potassium level and frequent premature ventricular contractions, who now has a potassium level of 4 mEq/L and three PVCs per minute.

A client admitted with acute pancreatitis with a normal lipase level and tolerating a low-fat diet.