CHT Study Guide 2026
Everything you need to pass the CHT exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CHT Exam Format at a Glance
📚 CHT Topics to Study (22)
✍️ Sample CHT Questions & Answers
1. Which accreditation organization specifically accredits histocompatibility laboratories in the United States?
ASHI provides specialty accreditation for histocompatibility laboratories, setting standards specific to HLA testing, crossmatching, and transplant immunology beyond CLIA requirements.
2. Which HLA antibody class is most commonly detected in sensitized transplant patients?
IgG HLA antibodies are the most clinically relevant and most commonly detected class in transplant patients, as they cross the placenta, fix complement, and mediate AMR.
3. What is a 'null' allele in HLA nomenclature?
Null alleles (designated 'N' in the allele name) harbor mutations such as premature stop codons that prevent surface expression of the HLA protein.
4. What is a key aspect of Data Interpretation & Clinical Application?
Effective Data Interpretation and Clinical Application are guided by specific standards to ensure accuracy and consistency. These standards provide frameworks and criteria for analyzing results, drawing valid conclusions, and applying them appropriately in patient care or research. Following established standards minimizes errors and optimizes the utility of data in clinical decision-making.
5. What is a key aspect of Laboratory Techniques & Testing Procedures?
A key aspect of Laboratory Techniques & Testing Procedures is adhering to established standards. This ensures accuracy, reliability, and reproducibility of results, which are paramount in a field like histocompatibility where patient lives depend on precise testing.
6. A historical (peak) crossmatch uses archived recipient serum to:
Historical serum represents the recipient's peak sensitization and is tested to uncover antibodies that may have waned but could return (anamnestic response) after transplantation.