CHT EXAM PREP ACTUAL UPDATED
QUESTIONS AND CORRECT ANSWERS
COMPREHENSIVE REVIEW
◉ What is the common association with ankylosing spondylitis
disease?
Answer: B27
◉ What is the common association with acute anterior uveitis
disease?
Answer: B27
◉ What is the common association with behcet's disease?
Answer: B51
◉ What is the common association with birdshot retinopathy
disease?
Answer: A29
◉ What is the common association with celiac disease?
Answer: DQ2 (DQB1*02 with DQA1*05), DQ8 (DQB1*03:02)
,◉ What is the common association with narcolepsy disease?
Answer: DQB1*06:02
◉ What is the common association with reiter's disease(eactive
arthritis)?
Answer: B27
◉ What is the common association with the drug abacavir(for HIV
treatment)?
Answer: B*57:01
◉ What is the common association with drugs that are aromatic
anti-epileptic?
Answer: B*15:02 (in Asians)
A*31:01 (in Caucasians)
◉ What is the common association with the drug allopurinol?
Answer: B*58:01
◉ What are the Bw4 associations?
,Answer: B5, B5102, B5103, B13, B17, B27, B37, B38(16), B44(12),
B47, B49(21), B51(5), B52(5), B53, B57(17), B58(17), B59, B63(15),
B77(15)
A9, A23(9), A24(9), A2403, A25(10), A32(19)
◉ What are the Bw6 associations?
Answer: B7, B703, B8, B14, B18, B22, B2708, B35, B39(16), B3901,
B3902, B40, B4005, B41, B42, B45(12), B46, B48, B50(21), B54(22),
B55(22), B56(22), B60(40), B61(40), B62(15), B64(14), B65(14),
B67, B70, B71(70), B72(70), B73, B75(15), B76(15), B78, B81, B82
◉ What are the DR51 associations? ---DRB5
Answer: DR15(DR2) and DR16(DR2)
◉ What are the DR52 associations? ---DRB3
Answer: DR11 (DR5) DR12 (DR5) DR13 (DR6) DR14 (DR6) DR17
(DR3) DR18 (DR3)
◉ What are the DR53 associations? ---DRB4
Answer: DR4 DR7 DR9
◉ Which of the following statements about shipping blood for HLA
typing (as of 2020) is false?
, a. Shipping is regulated by the DOT and IATA
b. Specimens must be packed in a 3-container system
c. There must be sufficient absorbent material to soak up a spill
d. Blood specimens known to carry pathogens are packaged the
same as routine diagnostic specimens
Answer: D. Blood specimens known to carry pathogens are
packaged the same as routine diagnostic specimens
◉ Which of the following procedures is not part of universal
precautions when performing a blood draw?
a. Wear a lab coat or gown
b. Change gloves between each patient
c. Do not recap, break or resheath needles
d. Use a sharps container for disposal of all needles e. Inform the
patient of your HIV status
Answer: E. Inform the patient of your HIV status
◉ Liquid nitrogen presents what danger(s) to personnel?
a. Toxicity, suffocation
b. Frost bite, suffocation
c. Flammability, toxicity
QUESTIONS AND CORRECT ANSWERS
COMPREHENSIVE REVIEW
◉ What is the common association with ankylosing spondylitis
disease?
Answer: B27
◉ What is the common association with acute anterior uveitis
disease?
Answer: B27
◉ What is the common association with behcet's disease?
Answer: B51
◉ What is the common association with birdshot retinopathy
disease?
Answer: A29
◉ What is the common association with celiac disease?
Answer: DQ2 (DQB1*02 with DQA1*05), DQ8 (DQB1*03:02)
,◉ What is the common association with narcolepsy disease?
Answer: DQB1*06:02
◉ What is the common association with reiter's disease(eactive
arthritis)?
Answer: B27
◉ What is the common association with the drug abacavir(for HIV
treatment)?
Answer: B*57:01
◉ What is the common association with drugs that are aromatic
anti-epileptic?
Answer: B*15:02 (in Asians)
A*31:01 (in Caucasians)
◉ What is the common association with the drug allopurinol?
Answer: B*58:01
◉ What are the Bw4 associations?
,Answer: B5, B5102, B5103, B13, B17, B27, B37, B38(16), B44(12),
B47, B49(21), B51(5), B52(5), B53, B57(17), B58(17), B59, B63(15),
B77(15)
A9, A23(9), A24(9), A2403, A25(10), A32(19)
◉ What are the Bw6 associations?
Answer: B7, B703, B8, B14, B18, B22, B2708, B35, B39(16), B3901,
B3902, B40, B4005, B41, B42, B45(12), B46, B48, B50(21), B54(22),
B55(22), B56(22), B60(40), B61(40), B62(15), B64(14), B65(14),
B67, B70, B71(70), B72(70), B73, B75(15), B76(15), B78, B81, B82
◉ What are the DR51 associations? ---DRB5
Answer: DR15(DR2) and DR16(DR2)
◉ What are the DR52 associations? ---DRB3
Answer: DR11 (DR5) DR12 (DR5) DR13 (DR6) DR14 (DR6) DR17
(DR3) DR18 (DR3)
◉ What are the DR53 associations? ---DRB4
Answer: DR4 DR7 DR9
◉ Which of the following statements about shipping blood for HLA
typing (as of 2020) is false?
, a. Shipping is regulated by the DOT and IATA
b. Specimens must be packed in a 3-container system
c. There must be sufficient absorbent material to soak up a spill
d. Blood specimens known to carry pathogens are packaged the
same as routine diagnostic specimens
Answer: D. Blood specimens known to carry pathogens are
packaged the same as routine diagnostic specimens
◉ Which of the following procedures is not part of universal
precautions when performing a blood draw?
a. Wear a lab coat or gown
b. Change gloves between each patient
c. Do not recap, break or resheath needles
d. Use a sharps container for disposal of all needles e. Inform the
patient of your HIV status
Answer: E. Inform the patient of your HIV status
◉ Liquid nitrogen presents what danger(s) to personnel?
a. Toxicity, suffocation
b. Frost bite, suffocation
c. Flammability, toxicity
