How do you approach IVIG replacement for pediatric patients with low IgG during treatment for hematologic malignancies?

Do you routinely check and replete IgG during therapy for hematologic malignancies in pediatric patients?

• Routinely check IgG and give IVIG if below a certain threshold
• Routinely check IgG but only give IVIG if infectious complications
• Only check IgG if infectious complications and give IVIG if below a certain threshold
• Other