(a) If the allegations of a petition alleging delinquency, unruliness, or deprivation are admitted by a party or if notice of a hearing under Code Section 15-11-30.2 has been given, the court prior to the hearing on need for treatment or rehabilitation and disposition may direct that a social study and report in writing to the court be made by the probation officer of the court or other person designated by the court, concerning the child, the child's family, the child's environment, and other matters relevant to disposition of the case. If the allegations of the petition are not admitted and notice of a hearing under Code Section 15-11-30.2 has not been given, the court shall not direct the making of the study and report until after the court has heard the petition upon notice of hearing given pursuant to this article and has found that the child committed a delinquent act or is an unruly or deprived child.

(b) During the pendency of any proceeding, the court may order the child to be examined at a suitable place by a physician or psychologist and may also order medical or surgical treatment of a child who is suffering from a serious physical condition or illness which, in the opinion of a licensed physician, requires prompt treatment, even if the parent, guardian, or other custodian has not been given notice of a hearing, is not available, or without good cause informs the court of his or her refusal to consent to the treatment.