An adult patient weighing 75 kg sustained partial and full thickness burns to 32% of their body 2 hours prior to arrival. intravenous fluid resuscitation was calculated to be 400 ml/hour. the urine output over the last hour was 15ml. what intervention should the nurse anticipate?
a. add blood products to the resuscitation
b. increase isotonic crystalloid infusion rate
c. administer an intravenous diuretic
d. switch to a hypertonic saline solution