21-year-old client admits to recently using diuretics and laxatives to lose weight quickly. the client doesn't want to feel fat in a bathing suit on vacation. the client's sodium level is 150 meq/l; potassium level is 3.2 meq/l. the client is 5 feet tall, weighs 100 pounds, and has lost 15 pounds in 3 weeks. which goal is a priority at this time?