⚖️ Behavioral Science & Ethics🔴 ApplicationForensic Neonatology

Signs of Live Birth and Infanticide

The findings that show whether a newborn was born alive and breathed, central to the medicolegal question of infanticide.

Key points

A key question after a newborn's death is whether the baby was born alive, because infanticide is the killing of a newborn.
A key sign of live birth is that breathing took place, shown by lungs that have expanded and become aerated, together with changes in the circulation after birth.
In the hydrostatic (flotation) test, lungs that have breathed tend to float in water, while lungs that never breathed tend to sink.
The test is not absolute, because decomposition gases or attempts to revive the baby can also make lungs float, so it is read with care.
Other signs include changes in the umbilical cord and the presence of swallowed air in the stomach and gut.

Memory trick

Live birth means the baby breathed: lungs expanded and aerated; the hydrostatic test floats breathed lungs and sinks unbreathed ones (but decomposition or revival attempts mislead); check the cord and air in the gut.

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⚖️ Behavioral Science & Ethics🔴 ApplicationForensic Neonatology

Signs of Live Birth and Infanticide

The findings that show whether a newborn was born alive and breathed, central to the medicolegal question of infanticide.

Key points

A key question after a newborn's death is whether the baby was born alive, because infanticide is the killing of a newborn.
A key sign of live birth is that breathing took place, shown by lungs that have expanded and become aerated, together with changes in the circulation after birth.
In the hydrostatic (flotation) test, lungs that have breathed tend to float in water, while lungs that never breathed tend to sink.
The test is not absolute, because decomposition gases or attempts to revive the baby can also make lungs float, so it is read with care.
Other signs include changes in the umbilical cord and the presence of swallowed air in the stomach and gut.

Memory trick

All of Forensic Medicine More Behavioral Science & Ethics