NSG 1600-Labor & Delivery Latest
Examination And 100% Correct
Answers.
Theories concerning the onset of labor.
Term Theory: - Answer Progesterone (the keeper of the pregnancy) levels decrease /
prostaglandins and estrogen increase and start contractions.
Theories concerning the onset of labor.
Stretch Theory: - Answer The uterus can only stretch so much, causes the brain to increase
Oxytocin level and this starts contractions.
Theories concerning the onset of labor.
Placental Aging Theory: - Answer 40 weeks (time to go) sends signal to brain for Oxytocin to
increase level and contractions begin.
Lightening - Answer (laymen's term baby drops)
*Fetal head descends into pelvis
causing increase in pelvic and bladder pressure.
*Mom can breathe easier due to decrease in pressure on the diaphragm.
Operculum - Answer (laymen's term mucous plug) was a barrier against bacterial infection.
Effacement - Answer *measured in percentages from 0-100%
*beginning between 35-37 weeks.
*Effacement does not indicate labor unless contractions are present.
*The Primipara effacement is complete before dilation occurs.
*The Multigravida effaces and dilates at the same time. (The labor is generally quicker for the
Multigravida)
Effaced: - Answer 0-100%
, When a mom comes to the hospital with contractions she is checked for dilation and
effacement and monitored. If she is not 4 cm dilated and membranes intact they will have her
ambulate in the hallway. The ambulation will increase the contractions if she is truly in labor. If
she is not in labor the contractions will cease and they will send her home.
Rupture of membranes (ROM) - Answer If the mother's membranes do not rupture
spontaneously the Dr. will perform an amniotomy using an amnihook. (The Dr. is responsible for
ROM not the nurse.)
Cervical Effacement & Dilation - Answer Note how cervix is drawn up around presenting part
(internal os). Membranes are intact, and head is not well applied to cervix.
A. Before labor.
B. Early effacement.
C. Complete effacement (100%). Head is well applied to cervix.
D. Complete dilation (10 cm). Cranial bones overlap somewhat, and membranes are still intact.
Tocolytic agents - Answer Medications used to stop premature uterine contractions.
Some examples are:
Nifedipine, Magnesium Sulfate, and Terbutaline.
Passageway / Birth Canal - Answer Station-location of head within maternal pelvis- measured
in relationship to ischial spine
-4 fetal head floating (Ballotement)
-3
-2
-1
0 fetal head engaged
+1
+2
+3
+4 Head crowning
Examination And 100% Correct
Answers.
Theories concerning the onset of labor.
Term Theory: - Answer Progesterone (the keeper of the pregnancy) levels decrease /
prostaglandins and estrogen increase and start contractions.
Theories concerning the onset of labor.
Stretch Theory: - Answer The uterus can only stretch so much, causes the brain to increase
Oxytocin level and this starts contractions.
Theories concerning the onset of labor.
Placental Aging Theory: - Answer 40 weeks (time to go) sends signal to brain for Oxytocin to
increase level and contractions begin.
Lightening - Answer (laymen's term baby drops)
*Fetal head descends into pelvis
causing increase in pelvic and bladder pressure.
*Mom can breathe easier due to decrease in pressure on the diaphragm.
Operculum - Answer (laymen's term mucous plug) was a barrier against bacterial infection.
Effacement - Answer *measured in percentages from 0-100%
*beginning between 35-37 weeks.
*Effacement does not indicate labor unless contractions are present.
*The Primipara effacement is complete before dilation occurs.
*The Multigravida effaces and dilates at the same time. (The labor is generally quicker for the
Multigravida)
Effaced: - Answer 0-100%
, When a mom comes to the hospital with contractions she is checked for dilation and
effacement and monitored. If she is not 4 cm dilated and membranes intact they will have her
ambulate in the hallway. The ambulation will increase the contractions if she is truly in labor. If
she is not in labor the contractions will cease and they will send her home.
Rupture of membranes (ROM) - Answer If the mother's membranes do not rupture
spontaneously the Dr. will perform an amniotomy using an amnihook. (The Dr. is responsible for
ROM not the nurse.)
Cervical Effacement & Dilation - Answer Note how cervix is drawn up around presenting part
(internal os). Membranes are intact, and head is not well applied to cervix.
A. Before labor.
B. Early effacement.
C. Complete effacement (100%). Head is well applied to cervix.
D. Complete dilation (10 cm). Cranial bones overlap somewhat, and membranes are still intact.
Tocolytic agents - Answer Medications used to stop premature uterine contractions.
Some examples are:
Nifedipine, Magnesium Sulfate, and Terbutaline.
Passageway / Birth Canal - Answer Station-location of head within maternal pelvis- measured
in relationship to ischial spine
-4 fetal head floating (Ballotement)
-3
-2
-1
0 fetal head engaged
+1
+2
+3
+4 Head crowning
