Chapman Maternal-Newborn Nursing Chapter 8
Intrapartum Assessment and Interventions Questions
with Correct Answers
Intrapartum Period Correct Answer-begins with the onset of regular
uterine contractions and lasts until the expulsion of the placenta. The
process by which this normally occurs is called labor.
Childbirth Correct Answer-is the period from the conclusion of the
pregnancy to the start of the extrauterine life of the infant
Maternal Factors that cause onset of labor Correct Answer-Uterine
muscles are stretched
increased pressure on the cervix
estrogen increases
Progesterone is withdrawn
Oxytocin stimulates myometrial contraction
Oxytocin levels surge from stretching of the cervix
Fetal factors that cause onset of labor Correct Answer--As placenta ages
it begins to deteriorate, triggering contractions
-Prostaglandin synthesis by the fetal membranes
-Fetal cortisol rises causing the uterus to contract
The 4 P's that affect labor Correct Answer--Powers (the contractions)
-Passage (the pelvis and the birth canal)
,-Passenger (the fetus)
-Psyche (the response of the woman)
Powers Correct Answer-refer to the involuntary uterine contractions of
labor and the voluntary pushing or bearing down powers that combine to
propel and deliver the fetus and placenta from the uterus
The uterine muscle is known as the Correct Answer-myometrium
The upper segment of the uterus composes Correct Answer-two thirds of
the uterus and contracts to push the fetus down
The lower segment of the uterus composes Correct Answer-the lower
third of the uterus and the cervix and is less active, allowing the cervix
to become thinner and pulled upward
Each contraction has a ________ ________ that allows the woman and
uterine muscles to pause for rest. Correct Answer-resting phase
With every contraction ______ mL of blood leaves the utero-placental
unit and moves back into maternal circulation Correct Answer-500 mL
Frequency Correct Answer-time from beginning of one contraction to
the beginning of another. recorded in minutes
, Duration Correct Answer-time from the beginning of a contraction to the
end of the same contraction. It is recorded in seconds
Intensity Correct Answer-strength of the contraction that can be palpated
using the fingertips on the maternal abdomen
Mild Intensity Correct Answer-the uterine wall is easily indented during
contractions
Moderate Intensity Correct Answer-the uterine wall is resistant to
indentation during a contraction
Strong Intensity Correct Answer-the uterine wall cannot be indented
during a contraction
The three phases on a contraction Correct Answer--Increment Phase
-Acme phase
-Decrement phase
Increment phase of contraction Correct Answer-ascending or buildup of
the contraction that begins in the fundus and spreads throughout the
uterus
Acme phase of contraction Correct Answer-peak of intensity
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