I was put on the bp medicine losartan. no blood work was done to check potassium levels or checked for dehydration. should i be concerned? i saw online that electrolytes should be checked/balanced first due to this med can cause high potassium lvls?

It is difficult to determine your risk for electrolyte derangement without knowing the rest of your medical history, or other medications that you are taking. Contact your doc next week, or book a tele-health visit to discuss with a doc who can review your history and order labs if necessary.

Unless you have history of chronic kidney disease, checking electrolytes, notably K level, is not absolutely required. However, most doctors will recheck your chemistry panel after 3 months to make sure kidney function and potassium have not changed much. If patient had history of kidney disease, renal function and electrolytes should be checked within a month and I always order those in 2 weeks.