At birth system switches from ____ to ______ circulation and from ______ to _______ gas exchange.
Increased _______ (stress)
Increased epi and norepi stimulate
- At birth system switches from fetal to newborn circulation and from placental to pulmonary gas exchange.
- Increased catecholamines (stress)
- Increased epi and norepi stimulate:
- . Increased cardiac output and contractility
- . Surfactant release
- . Promotion of pulmonary fluid clearance