The 3.2 kg patient with persistent pulmonary hypertension of the newborn (PPHN) has the following order: Infuse norepinephrine 0.05 mcg/kg/min IV and titrate q15 minutes by 0.05 mcg/kg/min to maintain mean arterial pressure between 45 and 55 mm Hg. Overnight, the norepinephrine had been titrated to 0.25 mcg/kg/min for persistent hypotension. At 0900, the MAP rose to 62 mm Hg and the nurse decreased the infusion from 0.25 mcg/kg/min to 0.20 mcg/kg/min. At 0905, the patient’s blood pressure fell to 42 mm Hg. Which action does the nurse take first?

The nurse is administering fluid resuscitation to a patient who sustained fourth-degree burns to 25% of the body and third-degree burns to 15% of the body. The patient weighs 210 pounds. Using the Parkland formula, how many milliliters should the nurse plan for the patient to receive in the first 24 hours of resuscitation?

The patient with acquired immunodeficiency syndrome who has been noncompliant with highly active antiretroviral therapy (HAART) presents to the emergency department with a productive cough, fever, night sweats, and weight loss. The patient’s chest x-ray reveals diffuse infiltrates bilaterally and the CD4 count is 182 cells/µL. Which question by the nurse is most important?