Which action supports maternal oxygenation during Miranda Johnson's Scenario Action #3?

Which action supports maternal oxygenation during Miranda Johnson's Scenario Action #3?

• A. Lower HOB with legs elevated
• B. Place the client on oxygen 10 L via nonrebreather
• C. Administer IM ephedrine
• D. Administer rapid IV fluid of lactated Ringer's

Answer: (B)

Maximizing maternal oxygenation in an obstetric scenario means getting as much oxygen into the mother’s blood as quickly as possible so more oxygen can reach the fetus. Delivering high-flow oxygen through a nonrebreather mask at 10 L/min provides a high fraction of inspired oxygen, rapidly raising the mother’s oxygen level and improving fetal oxygen delivery. This direct increase in arterial oxygen content is the most effective way to support oxygenation. Other actions don’t raise the oxygen content as effectively. Changing bed position may affect venous return and placental perfusion but doesn’t reliably increase the mother’s blood oxygen. Ephedrine is used to treat hypotension, not to enhance oxygenation. While rapid IV fluids can help with circulatory volume, they don’t guarantee improved oxygen content the way high-concentration oxygen does, and they’re typically part of a broader management plan rather than a sole oxygenation measure.

Maximizing maternal oxygenation in an obstetric scenario means getting as much oxygen into the mother’s blood as quickly as possible so more oxygen can reach the fetus. Delivering high-flow oxygen through a nonrebreather mask at 10 L/min provides a high fraction of inspired oxygen, rapidly raising the mother’s oxygen level and improving fetal oxygen delivery. This direct increase in arterial oxygen content is the most effective way to support oxygenation.

Other actions don’t raise the oxygen content as effectively. Changing bed position may affect venous return and placental perfusion but doesn’t reliably increase the mother’s blood oxygen. Ephedrine is used to treat hypotension, not to enhance oxygenation. While rapid IV fluids can help with circulatory volume, they don’t guarantee improved oxygen content the way high-concentration oxygen does, and they’re typically part of a broader management plan rather than a sole oxygenation measure.