Relias - Fetal Heart Monitoring Exam
comprehensive questions and verified
answers 2026 100% PASS
uterine blood supply - Correct answer-- 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 - Correct answer-*Maternal
Oxygenation:* asthma, hyper- or hypo- ventilation
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,*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 - Correct answer-- 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 - Correct answer-1 - reduce O2 in blood
2 - reduced O2 delivery at tissue level
Fetal anaerobic metabolism - Correct answer-- occurs when long term O2 delivery
is insufficient to meet cellular needs of tissues
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, - results in production of lactic acid and other noncarbonic acids
- ACIDOSIS is the presence of excessive acids in tissues
acidosis - Correct answer-pH below 7.35
pH is low
(acidosis is the process that leads to low blood pH, or acidemia)
alkalosis - Correct answer-pH above 7.45
pH is high
buffers - Correct answer-- help maintain acid base homeostasis
- 2 major fetal buffers are plasma bicarbonate and hgb
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
comprehensive questions and verified
answers 2026 100% PASS
uterine blood supply - Correct answer-- 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 - Correct answer-*Maternal
Oxygenation:* asthma, hyper- or hypo- ventilation
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,*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 - Correct answer-- 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 - Correct answer-1 - reduce O2 in blood
2 - reduced O2 delivery at tissue level
Fetal anaerobic metabolism - Correct answer-- occurs when long term O2 delivery
is insufficient to meet cellular needs of tissues
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, - results in production of lactic acid and other noncarbonic acids
- ACIDOSIS is the presence of excessive acids in tissues
acidosis - Correct answer-pH below 7.35
pH is low
(acidosis is the process that leads to low blood pH, or acidemia)
alkalosis - Correct answer-pH above 7.45
pH is high
buffers - Correct answer-- help maintain acid base homeostasis
- 2 major fetal buffers are plasma bicarbonate and hgb
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
