Aldosterone increases potassium excretion
Explanation
Aldosterone causes sodium retention
Abnormal levels usually reflect a variation in serum water volume rather than sodium content.
Basic: sodium, potassium, chloride, carbon dioxide, BUN, creatinine, glucose, calcium Complete: all basic + AST, ALT, alkaline phosphatase, total bilirubin, total protein, albumin
If greater than 20:1 consider pre-renal causes of azotemia (high BUN) such as dehydration or GI bleed.
Half of calcium is bound to albumin. If albumin is low, then calcium level will also be low. (You can run an equation to get a corrected calcium using a "normal" albumin of 4)
Bumetanide is a loop diuretic - would be more likely to cause LOSS of potassium, hypokalemia
thiazides can cause hyperglycemia
If chloride is high, then the cause of the hypercalcemia is primary hyperparathyroidism. If chloride is normal, then the cause of the hypercalcemia is malignancy.
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