Your personal AAB teacher

Learn AAB like you have a private tutor.

Ask out loud or type. Your teacher talks with you, listens, draws on the whiteboard and explains it a different way until it clicks β€” day or night. Free to start.

β–Ά Meet your teacher   Take Practice Test 1 free
Two controls exceed 2 SD on the same side β€” reject the run?
That's a 1-2s warning?
Two in one run beyond 2 SD is 2-2s: reject and look for systematic error.
Live whiteboard

See it drawn, step by step.

Watch QC rules, Westgard charts and CLIA requirements mapped out on the board.

Try the whiteboard   Browse topics
Levey–Jennings chart Β· Westgard rules +3s+2s+1smeanβˆ’1sβˆ’2sβˆ’3s 1-3s violation β†’ reject the run, find the random error
Real voices β€” even yours

It talks. It listens.

Talk through a laboratory-director scenario with a teacher who asks what CLIA requires. Pro members get natural premium voices and can even teach with their own recorded voice.

Talk to your teacher   See Pro voices
Test-day realistic

29 courses, 18 full-length tests each that feel like the real AAB.

18 full-length practice tests for every AAB examination, with the official question counts and timing. Highlight, strikethrough, flag for review and a detailed score report.

Start Practice Test 1 free   All practice tests
AAB β€” aborbasicknowledge,ABOR Basic Knowledge Time Remaining: 31:59 Highlight Strikethrough Reference Rangesβš‘ Flag for Review Question 7 A. ……………B. ……………………C. ……………D. ………………… PreviousNavigationNext
Remember more

Mnemonics, real-life examples & test tricks.

Westgard-rule shortcuts, CLIA personnel-requirement tables and bench-to-director memory hooks. Seven teaching styles so every kind of student learns their way.

Pick your style   Study by topic
πŸ“ˆ Westgard β€” 1-3s random Β· 2-2s and 4-1s systematic Β· R-4s random
πŸ“‹ CLIA β€” high complexity needs a qualified director, technical supervisor and testing personnel
πŸ§ͺ QC β€” run controls at least daily for each analyte (CLIA minimum)
πŸ’‘ Tip β€” read the last line of each question first
Private-tutor quality

The alternative to an expensive private teacher.

Get one-on-one teaching whenever you need it. Start free, then go Pro for just the course you need β€” $179.99 a year or $69.99 a month β€” a fraction of what private tutoring costs.

See plans   Try Practice Test 1 free
Monthly cost for 8 hours of help Private human tutor (example)$800+ at $100/hour CLIABoardTests AAB Pro β€” daily help$69.99 / month
πŸ“š
29courses
πŸ“
18full-length tests per course
🎯
ABOR + ABBboards
🎁
FreeTest 1 + daily lessons

Why our AAB quality is different

  • Real AAB (ABB and ABOR) Certification Exams structure and timing β€” ABOR β€” bench level, ABB β€” supervisor and director, with the official section order, question counts and time limits (2–4 hours per exam, 70–240 questions per exam).
  • Original, carefully reviewed questions β€” written for the AAB’s style of reasoning, never copied from official tests.
  • Every answer explained β€” why the right answer is right, why each wrong one is wrong, and a tip to remember it.
  • Score reports that teach β€” estimated percent correct Β· pass β‰ˆ 60–70% scores, skill breakdowns and time per question.
  • Teaching that adapts β€” beginner to top scorer, seven teaching styles, real-life examples, diagrams and mnemonics.
Try Practice Test 1 free
AAB β€” aborbasicknowledge,ABOR Basic Knowledge Time Remaining: 31:59 Highlight Strikethrough Reference Rangesβš‘ Flag for Review Question 7 A. ……………B. ……………………C. ……………D. ………………… PreviousNavigationNext

Everything a great private teacher does

One-on-one AAB teaching that adapts to you β€” with the patience to explain it ten different ways.

πŸ—£οΈ

A teacher who talks with you

Choose from four teacher personalities with lifelike AI-generated portraits and natural US-English voices.

πŸŽ™οΈ

Real voices β€” even yours

Premium natural voices for Pro members, and the option to teach with your own recorded voice (with your consent).

πŸ–ŠοΈ

Whiteboard diagrams

Watch QC rules, Westgard charts and CLIA requirements mapped out on the board.

🌎

Real-life analogies

Concepts you can picture, tied to everyday situations you already understand.

🧠

Mnemonics & test tricks

Westgard-rule shortcuts, CLIA personnel-requirement tables and bench-to-director memory hooks.

πŸ”Ž

Explain any practice question

Missed a question? One click sends it to your teacher, who walks you through every answer choice.

What’s on the AAB

Every AAB examination: ABOR bench-level (MT, MLT, MDxT, ALS, ELS) and ABB director, supervisor and consultant exams (HCLD, BCLD, PHLD, TS, ALD, ELD, CC).

ABOR β€” bench level

ABOR Basic Knowledge (MT, MDxT, ALS, ELS) Β· MT(AAB) Generalist Β· MT(AAB) Chemistry Discipline Β· MT(AAB) Hematology Discipline

Study ABOR β€” bench level β†’

ABB β€” supervisor and director

ABB General Knowledge (HCLD, BCLD, PHLD) Β· ABB Chemistry (incl. Urinalysis, Endocrinology, Toxicology) Β· ABB Diagnostic Immunology Β· ABB Hematology (incl. Flow Cytometry)

Study ABB β€” supervisor and director β†’

Learning that feels human

Your AI teacher connects every AAB skill to real situations β€” the lab, the clinic, the pharmacy and the career you’re working toward.

Warm, visual teaching
Study on your schedule
Coaching and strategy
Learn with confidence

Illustrative AI-generated portraits. They show the look of our AI teachers and the students we build for β€” they are not real people, testimonials or reviews.

How it works

Pick your teacher

Warm and visual, high-energy coach, precise and Socratic, or calm storyteller.

Ask anything

Type or talk. β€œTeach me this topic,” β€œWhy is B wrong?”, β€œQuiz me.”

Learn by seeing

Watch diagrams appear, hear the explanation, and answer a quick check question.

Prove it on test day

Take realistic full-length tests, review every question, and send misses back to your teacher.

Seven ways to teach β€” one for every learner

πŸ‘£ Step-by-step

Small steps from basics to AAB-level questions.

πŸ–ŠοΈ Visual whiteboard

Diagram-first teaching for visual learners.

🌎 Real-life analogies

Every idea anchored in something you already know.

❓ Socratic questions

Guided questions so you reason it out yourself.

πŸ“– Worked examples

Model answers and solutions explained line by line.

🧠 Mnemonics & memory hacks

Hooks, patterns and recall practice.

⚑ Rapid review + practice

High-yield summary, then an original practice question.

Private-tutor quality, without the private-tutor bill

Private human tutorCLIABoardTests AAB
Typical costOften $100+ per hour$179.99 per course for 1 year, or $69.99/month
AvailabilityScheduled sessions24/7, as long as you need
Teaching stylesUsually oneSeven, switch any time
DiagramsWhen they have timeLive whiteboard in every topic
Full-length practiceBought separatelyAll full-length tests of your course included with Pro
PatienceLimited by the clockExplains it again β€” and again

Questions

Is my teacher a real person?

No. Your teachers are AI-powered characters shown with AI-generated portrait images and synthetic voices, designed to teach like a patient private tutor. They’ll always tell you so if you ask.

Are these real AAB questions?

No. Every question is original and written to match the official format of the AAB (ABB and ABOR) Certification Exams. We are not affiliated with or endorsed by the American Association of Bioanalysts (AAB), its American Board of Bioanalysis (ABB) and AAB Board of Registry (ABOR).

Is this medical advice?

No. Clinical questions, explanations and lessons are for exam preparation only β€” not advice for real patients.

How accurate are the scores?

Scores are estimates based on your answers. They’re useful for tracking progress, but no practice test can predict your official score exactly.

Is ABBtests part of CLIABoardTests?

Yes β€” abbtests.com is the CLIABoardTests site for the AAB. Preparing for more than one test? See ascptest.com (ASCP), abcctests.com (ABCC) or the hub for all nine boards at cliaboardtests.com.

Can I cancel Pro?

Yes β€” cancel any time from your account page. You keep Pro until the end of the billing period.

More questions β†’

Start learning with your own AAB teacher today

Take Practice Test 1 free and start daily lessons β€” then unlock all the tests of your course with Pro.

β–Ά Start Practice Test 1 free   See plans

Also preparing for ASCP or ABCC? Β· All nine boards: cliaboardtests.com