A 32 year old G1P0 at 33 weeks EGA comes into the emergency department complaining of a severe headache. She has contractions every 3 minutes. She is experiencing flashes of light in front of her eyes. Her pregnancy has been uncomplicated until this time, and her only medical problem is mild asthma. Her vital signs are: T 36.5 C (97.7 F), BP 172/114, P 78, R 14, and a room air SpO2 99%. Her lungs have bilateral crackles at the bases, and her cervix is dilated at 3 cm and effaced at 50%. Her urinalysis has 2 protein, and her complete blood count shows: WBC 8,000/mm3, hematocrit 38%, platelets 215,000/mm3. Her BUN and creatinine are normal, her AST is 250 U/L, and her ALT is 316 U/L. The electronic fetal monitor shows a reactive and variable heart tracing at a rate in the 150s. What is the appropriate next step in management for her