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Certification overviewNCC

RNC-OB certification (Inpatient Obstetric Nursing)

Facts read in NCC's 2026 Candidate Guide and 4 other documents listed under Sources

RNC-OB certification is the board credential the National Certification Corporation awards to registered nurses who care for hospitalized pregnant patients: in labor and delivery, on antepartum and high-risk units, and through recovery. You qualify with an RN license and specialty experience (RN + 24 months + 2,000 h). The exam is 175 questions in 3 hours, with no breaks during testing time, and the credential is renewed every 3 years.

The inpatient obstetric exam in one table

ItemFactSource
Exam ownerNational Certification Corporation (NCC)2026 Candidate Guide [1]
CredentialRNC-OB, Registered Nurse Certified in Inpatient Obstetric Nursing2026 Candidate Guide [1]
AccreditationNCC core and subspecialty programs are accredited by NCCA NCCA is the National Commission for Certifying Agencies.2026 Candidate Guide [1]
Who can sitA current, active, unencumbered RN license in the US or Canada, plus 24 months and at least 2,000 hours of RN practice in the specialty Both the 24 months and the 2,000 hours must be met, and you must have worked in the specialty at some point in the last 24 months. The exam covers hospitalized pregnant patients after 20 weeks of gestation through discharge.NCC: 2026 Registration Catalog, core RNC exams [2]
Question formatMultiple choice: each question has a stem and three answer options, one of them correct Options are listed alphabetically and questions appear in random order. Lab values use conventional units with SI units in parentheses; drugs are named by generic and trade name.2026 Candidate Guide [1]
Questions175 questions2026 Candidate Guide [1]
Exam time3 hours, with no breaks during testing time2026 Candidate Guide [1][3]
Passing scoreNo set percentage: NCC uses a criterion-referenced passing standard set with Rasch analysis on equated exam forms There is no penalty for a wrong answer.2026 Candidate Guide [1]
Where you testPSI test centers in the US and Canada, or live remote proctoring at home Book at least 4 business days ahead for a test center and at least 2 for remote proctoring.NCC: 2026 Registration Catalog, core RNC exams [2][3]
Exam fee$325, which includes a nonrefundable $50 application fee The same fee applies at a test center and with remote proctoring.2026 Candidate Guide [1][2]
Renewal cycleEvery 3 years2026 Candidate Guide [1][4]
To renewTake the Continuing Competency Assessment at the start of each cycle, then earn the CE hours on the education plan it generates Plans call for 15 to 50 hours of CE; the assessment itself counts as 5 hours. Only CE earned after the assessment counts. An alternate route without the assessment exists but has its own rules.2026 Maintenance Catalog, core certifications [4][5]
Renewal fee$100; $80, $70 or $60 when 15, 30 or 45 hours of NCC CE are used2026 Maintenance Catalog, core certifications [4]

Each row read on Nov 6, 2026. Scoring, results and retakes: exam facts. Booking and every fee: registration.

Which nurses this credential fits

The exam centers on the hospitalized pregnant patient from 20 weeks of gestation through discharge. Labor and Birth carries 36% of it and Pregnancy Complications, Treatment, and Management another 28%, so it suits nurses on labor and delivery, antepartum and high-risk obstetric units best. Fetal assessment and the recovery period with the newborn make up most of the rest.

If most of your shifts are on a mother-baby unit, the Maternal Newborn exam (RNC-MNN) is built around that work instead. Nurses who work only antepartum have the board's Inpatient Antepartum exam (RNC-IAP) as well. If you care for sick newborns in intensive care, the matching exam is RNC-NIC.

Eligibility: license, months and hours

Both experience thresholds in the table apply at once, and the specialty work must be recent rather than from years ago; the board's registration catalog gives the exact look-back period.

Count only work in obstetric inpatient care, not time on other units. The board reviews the application before you can book a seat; the steps are on the registration page.

Renewing RNC-OB

Certification is renewed every 3 years. Maintenance starts at the beginning of each cycle, not the end: the Continuing Competency Assessment comes first and produces your CE plan. CE earned before the assessment does not count, so taking it early gives you the whole cycle to work through the plan.

The maintenance fee is $100 as of 2026, less when the board's own CE is used (see the table).

Figures worth checking before you rely on them

Secondhand summaries of this exam age quickly, so check any figure against the board's current guides. As of 2026, renewal comes every 3 years, each retake is charged in full, and there is no fixed passing percentage. The exam facts page explains the scoring.

4 sample items, 3 options each

0 of 4 done · 0 right

Complications · 28%1 / 4

An Rh(D)-negative patient at 34 weeks has blunt abdominal trauma. The test that shows whether more than one standard dose of RhIG is needed is the

Pick the option you would mark on test day. The choice stays fixed, and every option then explains itself.

  1. Kleihauer-Betke test
    The Kleihauer-Betke test counts fetal red cells in a maternal blood sample, which gives the volume of fetomaternal bleeding and therefore how many 300-mcg vials of RhIG are needed.
  2. direct Coombs test
    A direct Coombs test detects antibody already coating red cells (usually the newborn's after birth); it says nothing about how much fetal blood crossed into the mother.
  3. anti-D titer
    An anti-D titer measures antibody in a patient who is already sensitized; in an unsensitized Rh(D)-negative patient it is negative and cannot size the bleed.
Fetal assessment · 17%2 / 4

In a fetus with growth restriction, umbilical artery Doppler shows absent end-diastolic flow. Delivery is generally recommended at

  1. 30 0/7–32 0/7 weeks
    Birth at 30 0/7 to 32 0/7 weeks is the window for reversed end-diastolic flow, the more advanced Doppler finding; using it for absent flow moves birth earlier than needed.
  2. 33 0/7–34 0/7 weeks
    With absent end-diastolic flow in the umbilical artery, ACOG and SMFM advise birth at 33 0/7 to 34 0/7 weeks, after antenatal corticosteroids.
  3. 37 0/7 weeks
    Birth at 37 0/7 weeks fits growth restriction with elevated umbilical artery Doppler indices but preserved diastolic flow; absent flow carries too much risk to wait that long.
Labor and birth · 36%3 / 4

A patient at 22 5/7 weeks is in preterm labor, and birth appears likely. Per the ACOG/SMFM consensus on periviable birth, the family should receive

  1. a routine cesarean for fetal indications
    A routine cesarean for fetal indications is not advised before 23 weeks; it adds maternal surgical risk, including for future pregnancies, without a clear newborn benefit at 22 weeks.
  2. a resuscitation decision made by the NICU team after birth
    A resuscitation decision made by the NICU team after birth comes too late: the plan for a periviable birth is made with the family before delivery, which also leaves time for steroids if resuscitation is chosen.
  3. a joint obstetric–neonatal counseling session
    At the threshold of viability, the obstetric and neonatal teams counsel the family together on likely outcomes and the options, from comfort care to full resuscitation with steroids, so the plan reflects the family's values.
Postpartum and newborn · 16%4 / 4

When observing a breastfeeding session on day 2, the finding that best indicates effective milk transfer is

  1. audible swallowing after bursts of sucking
    Audible swallowing after bursts of sucking shows that milk is actually moving from breast to infant, the most direct bedside sign of transfer.
  2. rapid, shallow sucking throughout the feed
    Rapid, shallow sucking throughout the feed is non-nutritive sucking; without slower, deeper sucks and swallows, little milk is being transferred.
  3. a feeding that lasts 30 minutes on each side
    A feeding that lasts 30 minutes on each side measures time at the breast, not intake; very long feeds can even signal poor transfer.

More on the inpatient OB exam

The NICU exam from the same board

  • RNC-NICWho qualifies for the NICU core credential, what it tests and how it is maintained

Sources

  1. [1]NCC: 2026 Candidate Guide, Inpatient Obstetric Nursing (PDF) nccwebsite.org, opened Nov 6, 2026
  2. [2]NCC: 2026 Registration Catalog, core RNC exams (PDF) nccwebsite.org, opened Nov 6, 2026
  3. [3]NCC: Guide to Testing Methods (PDF, modified Sept. 9, 2026) nccwebsite.org, opened Nov 6, 2026
  4. [4]NCC: 2026 Maintenance Catalog, core certifications (PDF) nccwebsite.org, opened Nov 6, 2026
  5. [5]NCC: Four Steps to Continuing Competency (PDF) nccwebsite.org, opened Nov 6, 2026

RNC-OB questions nurses ask

Is RNC-OB the same thing as C-EFM?

No. C-EFM is a separate subspecialty exam on fetal heart monitoring from the same board. In the inpatient obstetric exam, fetal assessment is one category of five, 17% of the outline.

Can a nurse licensed in Canada earn RNC-OB?

Yes. The license can be from the US or Canada, and PSI seats exist in both countries, alongside live remote proctoring from home.

How often does the inpatient OB credential need renewing?

Renewal comes every 3 years, and each cycle starts with the board's Continuing Competency Assessment, which sets how many CE hours you need.

Is a review course required before the inpatient OB exam?

No. The application asks for your license and specialty experience; how you prepare is up to you.