The Physician Is Considering Giving a Neonatal Patient the Drug

The physician is considering giving a neonatal patient the drug ribavirin (Virazole) for her RSV infection. What other clinical data are important to consider in making this decision?
1) The need for mechanical ventilation
2) Preexisting congenital heart disease
3) Preexisting lung disease
4) The need for immunosuppression

A) 1
B) 2, 3
C) 2, 3, 4
D) 1, 2, 3, 4