The nurse providing care for the laboring woman recognizes that late fetal heart rate (FHR) decelerations are caused by:
Select one:
Knot in the umbilical cord.
Altered fetal cerebral blood flow.
Uteroplacental insufficiency.
Umbilical cord compression.
The Correct Answer is C
a. This is a common cause of variable decelerations, not late decelerations.
b. This is a common cause of variable decelerations, not late decelerations.
c. Late decelerations are caused by decreased blood flow to the placenta during contractions, resulting in a reduced oxygen supply to the fetus.
d. This is a common cause of variable decelerations, not late decelerations.
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Related Questions
Correct Answer is D
Explanation
a. The fetus establishing iron stores is not a cause of physiologic anemia during pregnancy.
b. Inadequate intake of iron can contribute to iron-deficiency anemia during pregnancy but is not the cause of physiologic anemia.
c. Decreased production of erythrocytes (RBC) is not a cause of physiologic anemia during pregnancy.
d. Dilution of hemoglobin concentration due to increased plasma volume during pregnancy is a cause of physiologic anemia.
Correct Answer is C
Explanation
a. This is not where fetal heart tones are typically auscultated.
b. This is not where fetal heart tones are typically auscultated.
c. The round, firm, moveable part in the fundus of the uterus is most likely the fetal head, and the long, smooth surface on the right side is most likely the fetal back. The fetal heart tones are best heard over the fetal back, which is closest to the maternal abdomen. Therefore, the nurse should expect to auscultate fetal heart tones in the right upper quadrant.
d. This is not where fetal heart tones are typically auscultated.
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