OB Drugs, RNC Test Exam Actual
Questions and Answers 2026(Verified
Answers)
Magnesium Sulfate -
correct answer ✅Anticonvulsant
4/5mg IM
SE: Flushing sweating, hypotension, depressed reflexes, flaccid
paralysis, hypothermia, circulatory collapse, cardiac and CNS
depression
Monitor serum Mg levels (therapeutic range 3-6mg/100mL)
OB Use: Seizure prevention in Eclampsia and preeclampsia
Betamethasone -
correct answer ✅Glucocorticoid
12mg IM
SE: Fluid retention/accumulation, hyperglycemia, glucose
intolerance, hypokalemia, GI upset, mood changes, insomnia,
restlessness, mania, catatonia, depression, delusions, hallucinations
and violent behavior.
Monitor: BP vitals, mood
OB USE: Help preterm babies develop surfactant...decrease lung
disease and increase lung function
,OB Drugs, RNC Test Exam Actual
Questions and Answers 2026(Verified
Answers)
Pitocin (oxytocin) -
correct answer ✅Drug class: synthetic hormone
Usual dose/route: IV standard concentration of 10 units to 1000ml,
20 units to 1000ml and 30 units in 500ml
Admin through a second line connected to main line and always by
pump. Begin dosage at 1 milliunit per minute and increase the rate
by 1-2 milliunits per minute no more frequently than every 30-60
minutes based on progression of labor.
Side effects:
MATERNAL: uterine tachysystole (more than 5 contractions in 10
min or a series of single contractions lasting greater than or = to 2
min or contractions of normal duration occurring within 1 minute
of each other), placental abruptions, uterine rupture, unnecessary c
section due to abnormal FHR and patterns, postpartum
hemorrhaging, and infection.
FETAL: hypoxemia and acidosis eventually resulting in abnormal
FHR and patterns.
Use in obstetrics: primarily used for labor induction and
augmentation, stimulate lactation, prevent hemorrhage post
partum.
,OB Drugs, RNC Test Exam Actual
Questions and Answers 2026(Verified
Answers)
Patient teaching: explain reasons for usage, effects of the drug
(expect contractions, intensity and more frequent) monitoring to
anticipate.
Cytotec (Misoprostol) -
correct answer ✅Drug class: Prostaglandin E1 (PGE1)
Usual dose/route: 100 or 200 mcg tablet which is prepared in
pharmacy to ensure proper dosage. Initial dose is 25mcg inserted
transvaginally into the posterior of the vaginal fornix using the tips
of the index and middle fingers WITHOUT lubricant. Repeat every 3-
6 hours up to 6 doses in a 24 hour period or until and effective
contraction pattern is established, the cervix ripens (Bishop score of
8 or more) or adverse reactions occur.
Side effects: higer doses more likely to cause nausea vomiting,
diarrhea, fever, uterine tachysystole, with or withought an
abnormal FHR and patterns or fetal passage of meconium. The risk
for adverse reactions is reduced with lower doses at longer
intervals between doses.
, OB Drugs, RNC Test Exam Actual
Questions and Answers 2026(Verified
Answers)
Use in obstetrics: Used to ripen the cervix making it softer and
causing it to begin to dilate and efface, stimulating contractions.
Patient teaching: : explain procedure to patient and family. Void
before insertion, must maintain a supine with lateral tilt or side
lying position for 30-40 minafter insertion.
Methergine (Methylergonovine maleate) -
correct answer ✅Drug class: ADRENERGIC ANTAGONIST;
ERGOT; OXYTOCIC
Usual dose/route: 0.2 mg IM every 2-4hours up to 5 doses may also
be given intrauterine or orally.
Side effects: hypertension, nausea, vomiting, headache.
Use in obstetrics: contraction of the uterus.
Patient teaching: Report severe cramping or ↑bleeding.Report cold
or numb fingers/toes, n/v, chest/muscle pain.
Rubella vaccine -
correct answer ✅Drug class: Vaccine
Questions and Answers 2026(Verified
Answers)
Magnesium Sulfate -
correct answer ✅Anticonvulsant
4/5mg IM
SE: Flushing sweating, hypotension, depressed reflexes, flaccid
paralysis, hypothermia, circulatory collapse, cardiac and CNS
depression
Monitor serum Mg levels (therapeutic range 3-6mg/100mL)
OB Use: Seizure prevention in Eclampsia and preeclampsia
Betamethasone -
correct answer ✅Glucocorticoid
12mg IM
SE: Fluid retention/accumulation, hyperglycemia, glucose
intolerance, hypokalemia, GI upset, mood changes, insomnia,
restlessness, mania, catatonia, depression, delusions, hallucinations
and violent behavior.
Monitor: BP vitals, mood
OB USE: Help preterm babies develop surfactant...decrease lung
disease and increase lung function
,OB Drugs, RNC Test Exam Actual
Questions and Answers 2026(Verified
Answers)
Pitocin (oxytocin) -
correct answer ✅Drug class: synthetic hormone
Usual dose/route: IV standard concentration of 10 units to 1000ml,
20 units to 1000ml and 30 units in 500ml
Admin through a second line connected to main line and always by
pump. Begin dosage at 1 milliunit per minute and increase the rate
by 1-2 milliunits per minute no more frequently than every 30-60
minutes based on progression of labor.
Side effects:
MATERNAL: uterine tachysystole (more than 5 contractions in 10
min or a series of single contractions lasting greater than or = to 2
min or contractions of normal duration occurring within 1 minute
of each other), placental abruptions, uterine rupture, unnecessary c
section due to abnormal FHR and patterns, postpartum
hemorrhaging, and infection.
FETAL: hypoxemia and acidosis eventually resulting in abnormal
FHR and patterns.
Use in obstetrics: primarily used for labor induction and
augmentation, stimulate lactation, prevent hemorrhage post
partum.
,OB Drugs, RNC Test Exam Actual
Questions and Answers 2026(Verified
Answers)
Patient teaching: explain reasons for usage, effects of the drug
(expect contractions, intensity and more frequent) monitoring to
anticipate.
Cytotec (Misoprostol) -
correct answer ✅Drug class: Prostaglandin E1 (PGE1)
Usual dose/route: 100 or 200 mcg tablet which is prepared in
pharmacy to ensure proper dosage. Initial dose is 25mcg inserted
transvaginally into the posterior of the vaginal fornix using the tips
of the index and middle fingers WITHOUT lubricant. Repeat every 3-
6 hours up to 6 doses in a 24 hour period or until and effective
contraction pattern is established, the cervix ripens (Bishop score of
8 or more) or adverse reactions occur.
Side effects: higer doses more likely to cause nausea vomiting,
diarrhea, fever, uterine tachysystole, with or withought an
abnormal FHR and patterns or fetal passage of meconium. The risk
for adverse reactions is reduced with lower doses at longer
intervals between doses.
, OB Drugs, RNC Test Exam Actual
Questions and Answers 2026(Verified
Answers)
Use in obstetrics: Used to ripen the cervix making it softer and
causing it to begin to dilate and efface, stimulating contractions.
Patient teaching: : explain procedure to patient and family. Void
before insertion, must maintain a supine with lateral tilt or side
lying position for 30-40 minafter insertion.
Methergine (Methylergonovine maleate) -
correct answer ✅Drug class: ADRENERGIC ANTAGONIST;
ERGOT; OXYTOCIC
Usual dose/route: 0.2 mg IM every 2-4hours up to 5 doses may also
be given intrauterine or orally.
Side effects: hypertension, nausea, vomiting, headache.
Use in obstetrics: contraction of the uterus.
Patient teaching: Report severe cramping or ↑bleeding.Report cold
or numb fingers/toes, n/v, chest/muscle pain.
Rubella vaccine -
correct answer ✅Drug class: Vaccine
