What Is OB-1T?

What OB-1T Actually Refers To

If you searched for "OB-1T" and landed here, the first thing to settle is identity. On this site, OB-1T stands for the Point-of-Care Ultrasound (POCUS) Obstetrics/First Trimester Certification. It is a clinical credential that documents a practitioner's ability to perform and interpret point-of-care ultrasound in early pregnancy: confirming an intrauterine gestation, recognizing the signs of ectopic pregnancy, distinguishing possible from definitive pregnancy failure, and the other bedside questions that arise in the first trimester.

One honest caveat: "OB-1T" is a retained site identifier, not an official post-nominal that the issuer awards. You will not be handed letters to put after your name. What you earn is a certification issued by the Academy, and a digital badge issued through Inteleos. The identifier simply gives this site, and the people searching for it, a short handle for the credential.

If you want other angles on the naming, our explainers on what OB-1T stands for and the OB-1T meaning cover the terminology, while the OB-1T certification overview gives a broader orientation.

Who Issues It and How It Is Delivered

The credential is administered by the Point-of-Care Ultrasound Certification Academy, which is part of Inteleos. Delivery is online, through the Academy's myPOCUS portal and its learning management system. There is no testing-center appointment in the traditional sense. You purchase the certification, work through the assessment components online, and the Academy handles the rest.

Because the work is delivered online, the Academy permits you to stop and resume online assessments rather than forcing a single uninterrupted sitting. A confidentiality and nondisclosure agreement applies, so the cases you see are not material you can share or reproduce afterward.

The Two Components You Must Pass

OB-1T is a two-part credential, and both parts must be passed. This is the single most misunderstood feature among new candidates, who often assume the credential is "just a test."

Component 1: The Clinical Case Assessment

The assessment is built from 7 simulated clinical cases. That number is a case count, not a question count. Each case contains multiple-choice questions and interactive image-hotspot questions, where you identify a structure or finding directly on an ultrasound image rather than selecting from a list. This format rewards candidates who can actually read a sonogram instead of only recalling definitions.

The public sources we reviewed do not state a fixed total number of questions or a numeric passing mark, and we do not infer one from the case count. If you are looking for scoring detail, see our passing score guide, which explains what is and is not published.

Component 2: The Peer Evaluation

The second component assesses your practical scanning ability through the eyes of colleagues. It is scored against 7 evenly weighted criteria:

• Diagnostic Quality
• Gain
• Depth
• Views
• Measurement
• Pathology
• M-Mode

These seven criteria belong to the Peer Evaluation only. They are not additional exam domains and do not change the five-domain structure of the Clinical Case Assessment. The first 2 completed peer questionnaires determine your peer result.

The Five Weighted Domains

The issuer's content outline lists five weighted objectives for the Clinical Case Assessment. Those weights total 100% for that assessment only, not for the entire two-component credential. The outline we reviewed is a one-page PDF with no printed revision date or version number, so check the program page for the current version before you commit to a study plan.

For a deeper walk through each content area, read our complete guide to all 5 OB-1T domains.

Pathology Categories Worth Knowing Cold

The issuer publishes example pathologies for this credential. The list is explicitly non-exhaustive, meaning other first-trimester conditions can appear, but it tells you where to start:

• Early pregnancy and possible pregnancy
• Single and multiple intrauterine gestation
• Ectopic pregnancy
• Heterotopic pregnancy
• Molar pregnancy
• Ovarian torsion
• Complete abortion
• Incomplete abortion
• Possible pregnancy failure
• Definitive pregnancy failure

Eligibility and Peer Evaluators

To apply, you must be a healthcare professional in good standing who is actively practicing in the relevant clinical area. You must attest to performing and participating in the interpretation of at least 25 obstetrics/first-trimester POCUS cases within the preceding 2 years.

Read that requirement carefully, because it is frequently misquoted. The 25 cases must include a combination of transvaginal and transabdominal scanning. The handbook and issuer FAQ do not require 25 cases of each approach. A candidate who has done only transabdominal scans will have a gap to close before attesting.

You also need at least 2 healthcare-provider peer evaluators who have an ultrasound clinical background and who know your relevant scanning abilities. Line them up early. Because the first 2 completed questionnaires set your peer result, choosing evaluators who have genuinely watched you scan matters more than choosing the most senior names.

Finally, POCUS Fundamentals is required unless waived. A waiver applies if you passed an SPI examination within 5 years or hold a current qualifying ARDMS or APCA credential. For the full prerequisite breakdown, see OB-1T requirements and eligibility.

Fees, Windows and Retake Mechanics

Our OB-1T certification cost breakdown expands on these figures and on what falls outside them.

If You Do Not Pass

The retake rules are structured, so know them before you begin:

• You get 2 total content-specific assessment attempts before a 1-year waiting period applies.
• A 30-day wait follows an unsuccessful attempt.
• A retake application and fee are required. The fee amount was not verified in the public sources we reviewed, so confirm it with the Academy.
• Apply for the retake within 90 days of failure.
• Any component you initially passed is retained for the first retake application.

That last point is useful: if you pass the Peer Evaluation but miss the Clinical Case Assessment, you generally do not need to redo the part you cleared on your first retake application.

Validity and Renewal

The certification is valid for 5 years. Clinical renewal requires an attestation of active practice and good standing, the relevant knowledge check, and a USD 50 fee. Specialty-only professional-development points do not apply to this individual clinical certification, so do not plan your renewal around accumulating them. Our exam dates and scheduling guide covers timing considerations, and the issuer's maintenance-of-certification page is the authority on current renewal steps.

Who Pursues This Credential

The eligibility language, "healthcare professional actively practicing in the relevant clinical area", tells you the intended audience: clinicians who scan early pregnancies as part of their work. In practice that points toward emergency physicians and advanced practice providers who evaluate patients with first-trimester bleeding or pain, obstetric and gynecologic clinicians, and others in urgent care or similar settings who use bedside ultrasound to triage possible ectopic pregnancy.

We want to be careful here. We have no verified data on how many employers require or prefer this specific credential, and we will not invent a figure. What the credential does is give a clinician, a credentialing committee, or a department a documented, third-party-assessed record of first-trimester scanning competence. Whether that translates to a job opportunity or a pay difference depends on your role and institution. For a role-based discussion, see OB-1T jobs, the salary guide, and whether the certification is worth it.

What OB-1T Is Not

Because several programs sound adjacent, it helps to draw clear lines. This certification is the standalone first-trimester clinical credential. It is not:

• The OB Essentials program, which uses a separate seven-question template distinct from this examination
• A second- or third-trimester certification
• The Maternal Fetal Health specialty bundle
• A registry credential such as an RDMS OB/GYN

Likewise, clinical video submissions that appear on the shared content outline apply only when you are enrolled in a specialty certification, not this standalone clinical one. If a study resource is organized around any of the above, treat it as partial coverage at best. For definitions in plain language, what OB-1T certification is is a useful companion read.

Sequencing Your Preparation by Domain

Generic study advice is easy to find; here is how the domain weights should shape a plan. Because Diagnostic and Sonographic Findings carry 66% of the Clinical Case Assessment, they get the most calendar time, but anatomy has to come first because you cannot describe or diagnose an image you cannot orient.

Build in time for the Peer Evaluation, too: confirm your evaluators, and review your own scans for gain, depth, M-Mode documentation and measurement quality before they rate you. For a fuller plan, see the OB-1T study guide and the one-page cheat sheet. When you want realistic reps, our practice test platform offers first-trimester-style questions, and you can explore further on the main site. If you are wondering how demanding the material is, our difficulty guide and pass rate article explain what is publicly known, including that no credential-specific pass rate was verified.

Frequently Asked Questions