The first sign of intrathecal injection following placement of caudal epidural with 0.25% bupivacaine in a 1 year old child would be
Hemodynamic instability is seen with intrathecal injecction in Younger children and infants. Apnea is first sign of total spinal in infants and younger children.
Hypotension
Bradycardia
Falling oxygen saturation
Tachycardia