Assess vital signs. Rationale: Because the client in addisonian crisis is unstable, vital signs and fluid and electrolyte balance should be assessed every 30 minutes until hes stable. Daily weights are sufficient when assessing the clients condition. The client shouldnt have ketones in his urine, so there is no need to assess the urine for their presence. Oral hydrocortisone isnt administered during the first 24 hours in severe adrenal insufficiency.