Relias - Fetal Heart Monitoring Exam Questions With Verified Answers
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Relias - Fetal Heart Monitoring Exam
Questions With Verified Answers
Uterine blood supply - 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...
Relias - Fetal Heart Monitoring Exam
Questions With Verified Answers
Uterine blood supply - 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 - answer✔*Maternal Oxygenation:*
asthma, hyper- or hypo- ventilation
Fetal anaerobic metabolism - answer✔- 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 - answer✔pH below 7.35
pH is low
(acidosis is the process that leads to low blood pH, or acidemia)
alkalosis - answer✔pH above 7.45
pH is high
buffers - answer✔- help maintain acid base homeostasis
- 2 major fetal buffers are plasma bicarbonate and hgb
base excess and base deficit - answer✔- base deficit is expressed as a positive number
- base excess is expressed as a negative number
~ they are equivalent and terms are used interchangeably ~
fetal acidosis - answer✔- when O2 is decreased to fetus, tissue hypoxia results in acidosis, which
then shows a drop in pH, a loss of bicarb, and increase in base deficit
acidemia - answer✔assoc w/ widespread, deleterious effects on vital organ and body function
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