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Relias - Fetal Heart Monitoring Questions and Answers (100% Pass)
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Relias - Fetal Heart Monitoring Questions and Answers (100% Pass)
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1|Page | © copyright 2024/2025 | Grade A+Relias - Fetal Heart Monitoring
Questions and Answers (100% Pass)
uterine blood supply
✓ - uterine arteries deliver oxygenated blood to spiral arteries which bring
oxygen rich blood to intervillous space of placenta that has fetal
capillaries
✓
✓ - fetal capillaries carry the O2 rich blood to umbilical VEIN that goes to
fetus
✓
✓ -in contrast, the umbilical ARTERIES return waste products to that
intervillous space that go into mother's venous system
Potential issues that negatively affect fetal oxygenation
Master01 | October, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
✓ *Maternal Oxygenation:* asthma, hyper- or hypo- ventilation
✓
✓ *Maternal Circulation:* decreased maternal cardiac output,
hypotension, decreased Hgb
✓
✓ *Placental O2 and CO2 Exchange:* postterm, abruption, HTN,
hypotension, uterine tachysystole
✓
✓ *Fetal circulation:* cord compression or occlusion
Fetal hypoxemia
✓ - can occur d/t reduced fetal O2 reserves, excessive uterine activity, or
reduced uteroplacental blood flow
✓
✓ - worsening fetal hypoxemia can lead to abnormal FHR patterns,
mostly minimal or absent variability from acidemia
(1) hypoxemia vs. (2) hypoxia
Master01 | October, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
✓ 1 - reduce O2 in blood
✓
✓ 2 - reduced O2 delivery at tissue level
Fetal anaerobic metabolism
✓ - occurs when long term O2 delivery is insufficient to meet cellular
needs of tissues
✓
✓ - results in production of lactic acid and other noncarbonic acids
✓
✓ - ACIDOSIS is the presence of excessive acids in tissues
acidosis
✓ pH below 7.35
✓
✓ pH is low
✓
✓ (acidosis is the process that leads to low blood pH, or acidemia)
alkalosis
Master01 | October, 2024/2025 | Latest update
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