Refractory hypokalaemia and hypertension in pregnancy in a woman with renal artery stenosis.

Renal artery stenosis is rare in pregnancy. Patients generally present with hypertension and/or pre-eclampsia. Accompanying hypokalaemia is usually mild or absent. Our case demonstrates the unusual finding of severe and refractory hypokalaemia together with hypertension in a woman with renal artery stenosis in pregnancy. The differential diagnosis of hypokalaemia with hypertension in pregnancy is discussed.