My 4year old son has fractured his arm. the x-ray report says there is a faint undisplaced transverse fracture in the proximal humerus. is it okay to let a doctor see him next week? no one is available today. hes not in any pain

Yes: I would put that arm in a sling & use a wide wrap to hold both to his torso (over his undershirt) . Ibuprophen or acetaminophen for any discomfort. He can bathe/sleep/feed as usual but not be involved in elective physical activities. For this injury they often just monitor it while it heals over several weeks.

It's ok, but....: Since the fracture is minimal and non-displaced, he can likely wait. However, he MUST remain very inactive and keep the arm totally immobilized in a sling. I'm concerned about a fracture in the humerus - that's a very unusual fracture site except in cases of child abuse. If he starts complaining of any discomfort, then can't wait any longer.

Urgent care/splint: Use Motrin to control pain, a sling and splint may be placed at a pediatric urgent care center. Avoid use of the arm and a follow up imaging study in 6 weeks is recommended.