PTCB CSDP
PTCB Certified Sterile Compounding Technician (CSPT)
More study resources
Cheat sheet
Keep the key ideas within reach.
ExploreKey terms
Get comfortable with the vocabulary.
ExploreStudy plan
Give each week a clear focus.
ExploreCommon mistakes
Understand the traps and how to avoid them.
ExploreCase studies
Put your knowledge to work in context.
ExploreExam-day guide
Prepare for the day ahead.
ExploreAbout this exam
The Certified Sterile Compounding Technician credential, offered through PTCB, is a voluntary certification for pharmacy technicians who prepare sterile products such as IV admixtures, parenteral nutrition, and other compounded sterile preparations. It signals that a technician has met a national standard for aseptic technique, equipment use, and quality assurance, and it is typically pursued by technicians working in hospital pharmacies, infusion centers, and other sites where sterile compounding is performed. The exam samples broadly across the compounding workflow: cleanroom facilities and environmental monitoring, aseptic technique and preparation procedures, hazardous and non-hazardous drug handling, sterilization and infection control, quality assurance and regulatory documentation, and the calculations and pharmacology needed to verify a preparation. Because the content is procedural and safety-focused, the most effective preparation combines a careful review of current USP standards and facility policy with hands-on practice of the motions you will actually perform, plus repeated self-testing on calculations, beyond-use dating, and garbing and cleaning sequences. Candidates should confirm eligibility, application steps, scheduling, and all current administrative details directly with PTCB, since those specifics are set by the certifying body and change over time. This page is an independent study resource and is not affiliated with or endorsed by PTCB.
What you'll study
About PTCB CSDP preparation
What is the exam format?
It is a computer-based, multiple-choice examination delivered at a testing center. Each item is standalone and self-contained, so no reference materials are provided during the test. Confirm the current delivery options and any accommodations process on the PTCB website before scheduling.
How long is the exam and how many questions are there?
PTCB publishes the current question count and appointment length, and these are subject to change. Rather than rely on secondhand numbers, check the official candidate materials for the exact figures and plan your pacing around roughly one minute per item as a working rule.
How hard is it, and what is the pass rate?
The exam assumes real cleanroom experience and rewards precise recall of sequences, limits, and terminology, so technicians without hands-on sterile experience find it harder. Pass rates are reported by the certifying body if at all; consult PTCB for any official statistic rather than relying on forum claims.
What happens if I fail? Can I retake it?
Retake rules, waiting periods, and any associated fees are set by PTCB and can change. Check your official score report and the PTCB site for the current policy, and use the waiting period to target the domains where your scaled scores were weakest.
In what order should I study the domains?
Start with aseptic technique and facility/environmental monitoring, since they carry the most weight and underpin everything else. Then layer in hazardous drug handling and sterilization and infection control, and finish with quality assurance, calculations, and pharmacology, which are easier to drill once the workflow makes sense.
What do candidates most often get wrong?
Common failure modes are memorizing garbing and cleaning sequences as lists instead of understanding why each step exists, confusing beyond-use dates for different preparation categories, and losing easy points on calculations through unit and rounding errors. Practice full procedures end to end, not isolated facts.
Do I need to memorize USP chapter numbers?
You should know which chapter governs which activity and the key concepts within it, such as cleanroom classifications, environmental monitoring, and beyond-use dating. Exact numeric limits are worth learning, but understand the reasoning so you can handle an unfamiliar scenario rather than only a memorized one.
How much math is on the test?
Calculations and preparation verification make up a modest share of the exam, but they are high-yield because they are objective. Expect dilution, concentration, flow rate, and dose conversions. Practice without a calculator first, then verify with one, and always check whether the answer is plausible.
Is this page or my study course officially affiliated with PTCB?
No. This is independent study material and is not affiliated with, endorsed by, or sponsored by PTCB. Always treat the certifying body's official handbook and standards as authoritative, and use third-party resources only as supplements to your facility's procedures and current USP standards.