RNC-OB PRACTICE TEST 2026 QUESTIONS
WITH CORRECT SOLUTIONS GRADED A+
◉ For an elective Caesarean, the most important preoperative
measure is to
a. determine the method of anesthesia.
b. position the patient correctly.
c. confirm fetal maturity. Answer: C
...is at least 39 weeks. Confirmation may be done by (1) finding
documentation of fetal heart sounds for 30 weeks by Doppler
ultrasound/20 weeks by auscultation, (2) noting a 36 wk internal
since positive pregnancy test by lab, (3) supporting gestation of at
least 39 weeks by ultrasound completed between 6-11 wks, and (4)
noting clinical history and later ultrasound that supports at least 39
weeks gestation
◉ A cordocentesis can be performed after how many weeks'
gestation?
a. 16
b. 18
c. 20 Answer: B
aka percutaneous umbilical cord blood sampling (PUBS), guided by
ultrasound, can be performed after 18 wks of pregnancy, as risks are
higher at earlier gestation. If the placenta is located on the posterior
,wall of the uterus, the needle is inserted through the amniotic fluid
to the umbilical cord near attachment to the placenta, but if the
placenta is located on the anterior or lateral walls, the needle must
first go through the placenta. Cordocentesis can be used to identify
fetal abnormalities, infections, anemia, and congenital alloimmune
thrombocytopenia.
◉ Velamentous insertion of the umbilical cord is commonly
associated with
a. singleton gestations.
b. abruptio placentae.
c. placenta previa. Answer: C
associated with placenta previa, vasa previa, and multiple
gestations. With velamentous insertion, the umbilical cord vessels
divide at a distance from the placenta, protected only by the thin
placental membranes, which may become compressed or injured
during pregnancy, labor, and delivery. Because the vessels lack the
protection of Wharton's jelly, they are especially susceptible to
tearing, resulting in fetal hemorrhage. If the vessels precede the
fetus at the internal os, this is termed vasa previa.
◉ During the fourth stage of labor, lochia should generally not
exceed
a. one saturated pad per hour.
b. one saturated pad per 2 hours.
,c. two saturated pads per hour. Answer: A
...as excessive drainage may indicate hemorrhage. Small clots are
common in the lochia rubra, but large clots may indicate excessive
bleeding. When changing the pad, it's important to examine the
buttocks and back to determine if overflow drainage has pooled. If
the uterus is firm but there is a continuous trickle of bright red
blood, this may be an indication of laceration.
◉ When determining the baseline fetal heart rate, the fetal heart
must be monitored for at least
a. 2 minutes.
b. 5 minutes.
c. 10 minutes. Answer: C
The baseline rate is the average rate during that time period,
rounded to the nearest 5 bpm. The normal fetal heart rate is 110-
160 bpm at term with a slightly increased rate for the preterm fetus.
Fetal tachycardia is defined as either over 150 bpm or over 160 bpm
for at least 10 minutes, while bradycardia is defined as either under
110 bpm or under 120 bpm for at least 10 minutes
◉ The most common visual complaint during pregnancy is
a. myopia.
b. blurred vision.
c. hyperopia. Answer: B
, The pregnancy woman tends to retain fluid, and this retention along
with decreased intraocular pressure causes some thickening of the
cornea and change of shape during the first trimester, resulting in
blurring of vision. However, these changes usually resolve within the
first 8 weeks of pregnancy, so the visual changes should not be
causes for changing prescriptions for corrective lenses. Pregnant
women also commonly complain of dry eyes, which may be relieved
by the use of artificial tears.
◉ With battledore placenta, the greatest maternal risks are for
a. preterm labor and bleeding.
b. postpartal hemorrhage.
c. late abortion and pre-term labor. Answer: A
The umbilical cord inserts into the placenta at or near the placental
margin. Maternal risks include preterm labor and bleeding. Risks to
the fetus include prematurity and fetal stress. Succenturiate
placenta is at least 1 accessory lobe of fetal villi develops on the
placenta. Maternal risk includes postpartal hemorrhage although
there are few fetal risks Circumvallate placenta is a ring of chorion
and amnion that surround the umbilical cord on the fetal side of the
placenta. Maternal risks include late abortion, antepartal
hemorrhage, and pre-term labor. Fetal risks include IUGR, preterm
birth and mortality.
◉ When a woman is using paced breathing during labor, the rate of
breathing should be no more than
WITH CORRECT SOLUTIONS GRADED A+
◉ For an elective Caesarean, the most important preoperative
measure is to
a. determine the method of anesthesia.
b. position the patient correctly.
c. confirm fetal maturity. Answer: C
...is at least 39 weeks. Confirmation may be done by (1) finding
documentation of fetal heart sounds for 30 weeks by Doppler
ultrasound/20 weeks by auscultation, (2) noting a 36 wk internal
since positive pregnancy test by lab, (3) supporting gestation of at
least 39 weeks by ultrasound completed between 6-11 wks, and (4)
noting clinical history and later ultrasound that supports at least 39
weeks gestation
◉ A cordocentesis can be performed after how many weeks'
gestation?
a. 16
b. 18
c. 20 Answer: B
aka percutaneous umbilical cord blood sampling (PUBS), guided by
ultrasound, can be performed after 18 wks of pregnancy, as risks are
higher at earlier gestation. If the placenta is located on the posterior
,wall of the uterus, the needle is inserted through the amniotic fluid
to the umbilical cord near attachment to the placenta, but if the
placenta is located on the anterior or lateral walls, the needle must
first go through the placenta. Cordocentesis can be used to identify
fetal abnormalities, infections, anemia, and congenital alloimmune
thrombocytopenia.
◉ Velamentous insertion of the umbilical cord is commonly
associated with
a. singleton gestations.
b. abruptio placentae.
c. placenta previa. Answer: C
associated with placenta previa, vasa previa, and multiple
gestations. With velamentous insertion, the umbilical cord vessels
divide at a distance from the placenta, protected only by the thin
placental membranes, which may become compressed or injured
during pregnancy, labor, and delivery. Because the vessels lack the
protection of Wharton's jelly, they are especially susceptible to
tearing, resulting in fetal hemorrhage. If the vessels precede the
fetus at the internal os, this is termed vasa previa.
◉ During the fourth stage of labor, lochia should generally not
exceed
a. one saturated pad per hour.
b. one saturated pad per 2 hours.
,c. two saturated pads per hour. Answer: A
...as excessive drainage may indicate hemorrhage. Small clots are
common in the lochia rubra, but large clots may indicate excessive
bleeding. When changing the pad, it's important to examine the
buttocks and back to determine if overflow drainage has pooled. If
the uterus is firm but there is a continuous trickle of bright red
blood, this may be an indication of laceration.
◉ When determining the baseline fetal heart rate, the fetal heart
must be monitored for at least
a. 2 minutes.
b. 5 minutes.
c. 10 minutes. Answer: C
The baseline rate is the average rate during that time period,
rounded to the nearest 5 bpm. The normal fetal heart rate is 110-
160 bpm at term with a slightly increased rate for the preterm fetus.
Fetal tachycardia is defined as either over 150 bpm or over 160 bpm
for at least 10 minutes, while bradycardia is defined as either under
110 bpm or under 120 bpm for at least 10 minutes
◉ The most common visual complaint during pregnancy is
a. myopia.
b. blurred vision.
c. hyperopia. Answer: B
, The pregnancy woman tends to retain fluid, and this retention along
with decreased intraocular pressure causes some thickening of the
cornea and change of shape during the first trimester, resulting in
blurring of vision. However, these changes usually resolve within the
first 8 weeks of pregnancy, so the visual changes should not be
causes for changing prescriptions for corrective lenses. Pregnant
women also commonly complain of dry eyes, which may be relieved
by the use of artificial tears.
◉ With battledore placenta, the greatest maternal risks are for
a. preterm labor and bleeding.
b. postpartal hemorrhage.
c. late abortion and pre-term labor. Answer: A
The umbilical cord inserts into the placenta at or near the placental
margin. Maternal risks include preterm labor and bleeding. Risks to
the fetus include prematurity and fetal stress. Succenturiate
placenta is at least 1 accessory lobe of fetal villi develops on the
placenta. Maternal risk includes postpartal hemorrhage although
there are few fetal risks Circumvallate placenta is a ring of chorion
and amnion that surround the umbilical cord on the fetal side of the
placenta. Maternal risks include late abortion, antepartal
hemorrhage, and pre-term labor. Fetal risks include IUGR, preterm
birth and mortality.
◉ When a woman is using paced breathing during labor, the rate of
breathing should be no more than
