COVID-19 and late-onset hypertension with hyporeninaemic hypoaldosteronism.

We have observed hypernatraemia and hypokalaemia with normal serum urea and creatinine associated with new-onset hypertension among COVID-19 patients. We assessed the renin-angiotensin-aldosterone system (RAAS) of 2 patients during the pandemic and found elevated urinary potassium (without causal medications) and hyporeninaemic hypoaldosteronism in both.