Unnecessary repeat requesting of tests: an audit in a government hospital immunology laboratory.

J Kwok, B Jones
Author Information
  1. J Kwok: Clinical Immunology Division, Department of Pathology, Queen Mary Hospital, Pokfulam Road, Hong Kong. kwoksy@ha.org.hk

Abstract

Unnecessary repeat requesting of tests can make up a large proportion of a laboratory's workload. This audit set out to establish the size of this problem and to identify the circumstances under which these repeat requests were made in a government tertiary hospital immunology laboratory. The numbers of tests for immunoglobulin measurement, common autoantibodies, and tumour markers that were repeated over a 12 month period were analysed by interrogating the Delphic laboratory computer system using a management information system for raw data enquiry protocol. Repeat requests within 12 weeks of a previous request made up 16.78% of the total workload. The total cost of the tests was estimated at 132 151 US dollars. The waste of technician time and reagents as a result of unnecessary repeat testing is excessive. Many of these tests might be eliminated with the use of interventions such as computerised reminders.

References

  1. Am J Clin Pathol. 2002 Feb;117(2):316-24 [PMID: 11863229]
  2. Am Fam Physician. 2002 Mar 15;65(6):1073-80 [PMID: 11925083]
  3. Hepatology. 2002 Aug;36(2):479-97 [PMID: 12143059]
  4. Hepatology. 2002 Nov;36(5 Suppl 1):S84-92 [PMID: 12407580]
  5. Rheumatology (Oxford). 2003 Feb;42(2):357-61 [PMID: 12595636]
  6. Clin Chim Acta. 2003 Jul 15;333(2):181-3 [PMID: 12849902]
  7. Lancet. 2003 Jul 5;362(9377):53-61 [PMID: 12853201]
  8. Clin Chem. 2004 Feb;50(2):321-6 [PMID: 14684622]
  9. Dis Colon Rectum. 2004 Jun;47(6):807-17 [PMID: 15108028]
  10. Clin Chim Acta. 2004 Jul;345(1-2):1-15 [PMID: 15193973]
  11. Clin Microbiol Infect. 2004 Jul;10(7):624-7 [PMID: 15214874]
  12. Fam Pract. 2004 Aug;21(4):387-95 [PMID: 15249527]
  13. Ann Intern Med. 2004 Aug 3;141(3):196-204 [PMID: 15289216]
  14. Can Med Assoc J. 1972 Jan 22;106(2):122-3 [PMID: 5058884]
  15. JAMA. 1973 Aug 20;225(8):969-73 [PMID: 4740560]
  16. Arch Intern Med. 1974 Dec;134(6):1064-7 [PMID: 4433187]
  17. J Med Educ. 1977 Jul;52(7):578-81 [PMID: 874991]
  18. N Engl J Med. 1979 Dec 27;301(26):1413-9 [PMID: 117359]
  19. N Engl J Med. 1982 Mar 25;306(12):706-12 [PMID: 7038484]
  20. Annu Rev Public Health. 1982;3:225-48 [PMID: 6816256]
  21. N Engl J Med. 1997 Nov 13;337(20):1441-8 [PMID: 9358143]
  22. Int J Technol Assess Health Care. 1997 Fall;13(4):501-11 [PMID: 9489242]
  23. Int J Technol Assess Health Care. 1997 Fall;13(4):526-36 [PMID: 9489245]
  24. Am J Med. 1998 Apr;104(4):361-8 [PMID: 9576410]
  25. Fam Pract. 1998 Jun;15(3):264-5 [PMID: 9694186]
  26. JAMA. 1998 Aug 12;280(6):550-8 [PMID: 9707147]
  27. JAMA. 1998 Dec 16;280(23):2020-7 [PMID: 9863854]
  28. JAMA. 1998 Dec 16;280(23):2028-33 [PMID: 9863855]
  29. Anticancer Res. 1999 Jul-Aug;19(4A):2799-801 [PMID: 10470244]
  30. Anticancer Res. 1999 Jul-Aug;19(4A):2811-5 [PMID: 10470247]
  31. Inquiry. 1982 Winter;19(4):363-70 [PMID: 6218090]
  32. JAMA. 1983 Jun 10;249(22):3076-80 [PMID: 6854832]
  33. Prev Med. 1983 May;12(3):385-96 [PMID: 6410370]
  34. Health Care Financ Rev. 1984 Summer;5(4):23-32 [PMID: 10317549]
  35. Br Med J (Clin Res Ed). 1985 Feb 16;290(6467):488-90 [PMID: 3918644]
  36. Am J Clin Pathol. 1985 Dec;84(6):756-9 [PMID: 3934959]
  37. Am J Med. 1986 May;80(5):865-70 [PMID: 3706374]
  38. Med Decis Making. 1985 Winter;5(4):401-15 [PMID: 3916109]
  39. Arch Intern Med. 1987 Jan;147(1):48-9 [PMID: 3800528]
  40. Am J Med. 1987 Mar;82(3):513-7 [PMID: 3826102]
  41. Med Care. 1992 Sep;30(9):846-54 [PMID: 1518316]
  42. J Clin Pathol. 1992 Aug;45(8):742-3 [PMID: 1401196]
  43. JAMA. 1993 Jan 20;269(3):379-83 [PMID: 8418345]
  44. Arch Pathol Lab Med. 1993 Jan;117(1):33-4 [PMID: 8418758]
  45. Lancet. 1993 Jul 17;342(8864):150-3 [PMID: 8101259]
  46. Med Care. 1993 Sep;31(9):784-94 [PMID: 8366680]
  47. Hepatology. 1993 Oct;18(4):998-1005 [PMID: 8406375]
  48. Arch Intern Med. 1993 Oct 25;153(20):2363-6 [PMID: 8215740]
  49. Lancet. 1993 Nov 27;342(8883):1317-22 [PMID: 7901634]
  50. Ann Intern Med. 1994 Jan 15;120(2):135-42 [PMID: 8256973]
  51. BMJ. 1994 Feb 26;308(6928):581-5 [PMID: 8148684]
  52. Qual Manag Health Care. 1994 Summer;2(4):18-27 [PMID: 10172133]
  53. J Am Med Inform Assoc. 1994 Mar-Apr;1(2):108-23 [PMID: 7719793]
  54. Clin Chim Acta. 1995 Jan 16;233(1-2):1-17 [PMID: 7758196]
  55. Clin Chem. 1995 Aug;41(8 Pt 2):1241-7 [PMID: 7543035]
  56. CMAJ. 1995 Nov 15;153(10):1423-31 [PMID: 7585368]
  57. Mayo Clin Proc. 1996 Apr;71(4):391-6 [PMID: 8637264]
  58. BMJ. 1996 Aug 10;313(7053):329-32 [PMID: 8760739]
  59. Fam Pract. 1996 Jun;13(3):254-8 [PMID: 8671134]
  60. J Clin Oncol. 1996 Oct;14(10):2843-77 [PMID: 8874347]
  61. Geriatrics. 1996 Nov;51(11):22-6, 29-30, 32 [PMID: 8918481]
  62. Conn Med. 1997 Jan;61(1):15-21 [PMID: 9040157]
  63. Hepatology. 1997 Aug;26(2):459-66 [PMID: 9252159]
  64. Ann Intern Med. 1987 Oct;107(4):569-74 [PMID: 3631792]
  65. JAMA. 1988 Feb 26;259(8):1194-8 [PMID: 3339821]
  66. Arch Pathol Lab Med. 1988 Mar;112(3):238-41 [PMID: 3345123]
  67. Med Care. 1989 Jan;27(1):45-58 [PMID: 2492066]
  68. Arch Intern Med. 1989 Aug;149(8):1836-8 [PMID: 2764655]
  69. JAMA. 1991 Jan 16;265(3):365-9 [PMID: 1984535]
  70. BMJ. 1990 Dec 8;301(6764):1305-7 [PMID: 2271854]
  71. Med Care. 1992 Mar;30(3):189-98 [PMID: 1538607]
  72. J Clin Pathol. 1992 Mar;45(3):248-9 [PMID: 1556235]
  73. Qual Assur Health Care. 1992 Mar;4(1):77-81 [PMID: 1576338]
  74. N Engl J Med. 1965 Aug 19;273:432-8 [PMID: 14328108]
  75. J Hepatol. 1999 Nov;31(5):929-38 [PMID: 10580593]
  76. Arch Pathol Lab Med. 2000 Jan;124(1):71-81 [PMID: 10629135]
  77. Arch Pathol Lab Med. 2000 Jul;124(7):979-94 [PMID: 10888773]
  78. Gastroenterology. 2001 Jan;120(1):239-49 [PMID: 11208733]
  79. J Clin Oncol. 2001 Mar 15;19(6):1865-78 [PMID: 11251019]
  80. Gut. 2001 Oct;49(4):589-94 [PMID: 11559660]
  81. Ann Oncol. 2001 Aug;12(8):1047-8 [PMID: 11583179]
  82. Ann Oncol. 2001 Aug;12(8):1053-4 [PMID: 11583182]
  83. Ann Oncol. 2001 Aug;12(8):1055 [PMID: 11583183]
  84. J Clin Pathol. 2002 Jan;55(1):78 [PMID: 11825933]

MeSH Term

Autoantibodies
Biomarkers, Tumor
Costs and Cost Analysis
Diagnostic Tests, Routine
Humans
Immunoglobulins
Laboratories, Hospital
Medical Audit
Unnecessary Procedures

Chemicals

Autoantibodies
Biomarkers, Tumor
Immunoglobulins

Word Cloud

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