MCQ Answers Vol.1 No.3  
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(Anne Fay)

• Prick skin tests:

1. Are more sensitive than intradermal tests. False

2. Are read at 48 hours. False

3. Are a convenient method for detecting allergic reactions in most patients True.

4. Cannot be used for food allergens False.

5. Can be performed using a 25 gauge needle True.

• Drugs which interfere with prick tests include:

6. Azelastine eye drops. False

7. Oral steroids True.

8. Ceterizine. True

9. Tricyclic antidepressants. True

10. Cromoglycate. True

 

(CC Bunn & VJ Tormey)

• Anti-centromere antibodies

11. Are readily detectable using saline soluble antigen extracts. False

12. Are highly specific for DcSSc. False

13. CENP-B antibodies are detected in all patients with ACA. True

14. Usually occur in young SSc patients. False

15. Are usually present in high titre. True

• The following autoantibodies are associated with internal organ involvement in SSc.

16. ATA and pulmonary fibrosis. True

17. AFA and primary pulmonary hypertension. True

18. RNA polymerase and myositis. False

19. PmScl and renal involvement. False

20. ThRNP and pulmonary hypertension. True

• The following statements are true

21. Radioimmunoprecipitation methods are useful in the detection of RNA polymerase. True

22. CIE and double diffusion are more sensitive than radioimmuno-precipitation. False

23. Anti-aminoacyl tRNA synthetases are never found in SSc. False

24. ATA and ARA are mutually exclusive in SSc. True

25. AFA are more common in Caucasians. False

 

(Ian Hutchinson & Ali Hajeer)

• A polymorphism can be

26. a minisatellite True

27. a microsatellite True

28. a SNP True

29. in any part of the gene True

30. found only in cytokines False

• SNPs

31. can be identified by SSCP & heteroduplex analysis True

32. within coding regions are called cSNPs True

33. cSNP can not cause amino acid change False

34. occur on average every 10Kb False

35. occur only within promoters and can alter transcription factors binding False

 

(Karim MY, Khamashta MA & Hughes GRV)

• Regarding the antiphospholipid syndrome (Hughes' syndrome)

36. Anticoagulation with heparin is the treatment of choice False

37. Preliminary diagnostic criteria now exist True

38. Venous but not arterial thromboses are characteristic False

39. Immunosuppression is the mainstay of treatment False

40. Initial thrombosis can occur with the use of oestrogen-containing oral contraceptives True

• Regarding the investigation of the antiphospholipid syndrome (Hughes' syndrome)

41. IgA anticardiolipin antibodies should be ordered routinely False

42. Requesting lupus anticoagulant is not required if anticardiolipin antibodies are requested False

43. Thrombocytopenia is not usually severe True

44. Anticardiolipin antibodies are frequently measured by ELISA True

45. Anticardiolipin antibody titre is strongly correlated with severity of clinical features False

 

(Lawrence Youlten)

• Anaphylactic reactions to intravenous anaesthetic drugs

46. Are more common in women than in men True

47. Depend on previous drug exposure False

48. Occur only in atopic individuals False

49. Are usually apparent within three minutes True

50. Are never IgE mediated False

• Skin-prick tests with drugs used in anaesthesia

51. Are more hazardous than intradermal tests False

52. Are more useful than blood tests in identifying responsible drugs True

53. May produce false positive results True

54. Should only be carried out with very dilute drug solutions False

55. Should be read at 10 to 15 minutes True

 

(S. Katona, C.McGavin & E.Kaminski)

• Seminal plasma protein allergy:

56. Is not usually associated with atopy. False

57. May be confused with latex allergy. True

58. Usually causes a local vaginitis without systemic symtoms. False

59. Is a type IV hypersensitivity reaction. False

60. Reactions do not occur with a patient’s first sexual intercourse. False

61. Symptoms may be intermittent. True

62. Specific IgE to seminal plasma proteins is a sensitive test for SPPA. False

 

 
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