| Sample Questions | 
| CHT/CHS Questions The CHT and CHS Examinations have been developed to objectively measure the knowledge and skills required for histocompatibility technologists and specialists. Both examinations contain 150 multiple-choice questions. The examinations are developed by an examination committee of experts in the field who are appointed by ABHI. The following are examples of multiple-choice questions. Each of the questions is followed by four suggested answers. Select the one answer that is the best for each question. Click on following question numbers to start: 
 
 Director Exam Questions The Histocompatibility Laboratory Director Examination has been developed to objectively measure the knowledge and skills required for serving as the director of a histocompatibility laboratory. The examination contains 200 scored multiple-choice questions and is divided into two parts. Part 1 contains 110 scored items to be administered in 3 hours, and part 2 contains 90 scored items to be administered in 2 hours. Thirty additional pretest (not scored) items are interspersed to each part of the exam (15 to Part 1 and 15 to Part 2). A detailed content outline can be found in the candidate handbook. The examination is developed by a committee of experts in the field who are appointed by ABHI. The following are examples of multiple-choice questions. Each of the questions is followed by four suggested answers. Select the one answer that is the best for each question. Click on following question numbers to start: 
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11/22/2024 » 11/22/2025
2025 ASHI University Sponsorship
10/29/2025 » 10/31/2025
LMCE 2025 & 66th KSLM Annual Meeting