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SBB practice questions - frequently asked questions

Plain answers about how SBB Exam Prep works: the exam, the questions, pricing, the free trial, and what you actually get.

No - and you should be wary of any site claiming otherwise. Every question here is original, written to mirror the style, difficulty, and judgment the real SBB exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The SBB exam spans 6 domains: Blood Group Systems and Immunohematology (30% of the exam); Serologic and Molecular Testing (20% of the exam); Transfusion Practice (20% of the exam); Blood Products and Donor Processing (15% of the exam); Laboratory Operations and Quality Systems (10% of the exam); Physiology and Pathophysiology (5% of the exam). Every practice question on this site is tagged to one of these domains.

The domains are not weighted equally on the exam. By share of the marks: Blood Group Systems and Immunohematology 30%; Serologic and Molecular Testing 20%; Transfusion Practice 20%; Blood Products and Donor Processing 15%; Laboratory Operations and Quality Systems 10%; Physiology and Pathophysiology 5%.

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