Difference between revisions of "Quality"

Jump to navigation Jump to search

Quality (view source)

Revision as of 17:27, 14 February 2017

1,697 bytes added ,  17:27, 14 February 2017
→‎Ontario
 
(15 intermediate revisions by the same user not shown)
Line 117: Line 117:
*Grade 1: no consequence.
*Grade 1: no consequence.
*Grade 2: possible consequence.
*Grade 2: possible consequence.
*Grade 3: definitely a consequency.
*Grade 3: definitely a consequence.


==Error reduction==
==Error reduction==
Line 132: Line 132:
**Allow correlation with test.
**Allow correlation with test.
***The interpretation may differ if the history says "screening coloscopy" versus "large cecal mass, anemia and weight loss" versus "breast cancer".
***The interpretation may differ if the history says "screening coloscopy" versus "large cecal mass, anemia and weight loss" versus "breast cancer".
*The use of algorithms to guide decisions where applicable.<ref>Kahneman D. ["Als wären wir gespalten": Der Psychologe und Nobelpreisträger Daniel Kahneman über die angeborenen Schwächen des Denkens, trügerische Erinnerungen und die irreführende Macht der Intuition]. Der Spiegel. Nr. 21. 2012. URL: [http://www.spiegel.de/spiegel/print/index-2012-21.html http://www.spiegel.de/spiegel/print/index-2012-21.html].</ref>
**Remove subjectivity.
**Increase objectivity, reproducibility.


Other strategies:
==Dealing with diagnostic errors==
*Statistical process control.
*Opinion is split on whether reports should be ''amended'' or ''addended'' - see ''[[sign out]]'' article.


=Measures of quality=
=Measures of quality=
Line 214: Line 217:
#Counterstaining.
#Counterstaining.
#Interpretation problem.
#Interpretation problem.
#*Known/expected epitope cross-reactions, e.g. CMV & HSV.<ref name=pmid3029407>{{Cite journal  | last1 = Balachandran | first1 = N. | last2 = Oba | first2 = DE. | last3 = Hutt-Fletcher | first3 = LM. | title = Antigenic cross-reactions among herpes simplex virus types 1 and 2, Epstein-Barr virus, and cytomegalovirus. | journal = J Virol | volume = 61 | issue = 4 | pages = 1125-35 | month = Apr | year = 1987 | doi =  | PMID = 3029407 | PMC = 254073 |
#*Known/expected epitope cross-reactions, e.g. [[CMV]] & [[HSV]].<ref name=pmid3029407>{{Cite journal  | last1 = Balachandran | first1 = N. | last2 = Oba | first2 = DE. | last3 = Hutt-Fletcher | first3 = LM. | title = Antigenic cross-reactions among herpes simplex virus types 1 and 2, Epstein-Barr virus, and cytomegalovirus. | journal = J Virol | volume = 61 | issue = 4 | pages = 1125-35 | month = Apr | year = 1987 | doi =  | PMID = 3029407 | PMC = 254073 |
URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC254073/?tool=pubmed }}</ref>  
URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC254073/?tool=pubmed }}</ref>  
#*Unknown/unexpected epitope cross-reactions.
#*Unknown/unexpected epitope cross-reactions.
Line 224: Line 227:
==Data retention standards==  
==Data retention standards==  
*There are data retention standards - how long results have to be retained.
*There are data retention standards - how long results have to be retained.
===College of American Pathologists===
*In the United States, there are standards from ''College of American Pathologists'' (CAP) and ''Clinical Laboratory Improvement Amendments'' (CLIA).<ref>URL: [http://www.cms.gov/clia/ http://www.cms.gov/clia/]. Accessed on: 1 April 2012.</ref>
*In the United States, there are standards from ''College of American Pathologists'' (CAP) and ''Clinical Laboratory Improvement Amendments'' (CLIA).<ref>URL: [http://www.cms.gov/clia/ http://www.cms.gov/clia/]. Accessed on: 1 April 2012.</ref>


Line 230: Line 235:
*Fine needle aspiration: 10 years from the exam date.
*Fine needle aspiration: 10 years from the exam date.
*Histopathology slides: 10 years from the exam date.
*Histopathology slides: 10 years from the exam date.
===Canadian Association of Pathologists===
The Canadian standards are higher than the US ones.
Summary of selected suggestions:<ref>URL: [http://cap-acp.org/guide_retention-human-biologic-material.cfm http://cap-acp.org/guide_retention-human-biologic-material.cfm]. Accessed on: 6 May 2012.</ref>
{| class = "wikitable sortable"
! Material
! Origin
! Suggested retention period
! Additional notes
|-
| Wet tissue
| surgical
| 4 weeks after final report
| -
|-
| Paraffin blocks
| surgical
| 20 years
| 50 years for paediatric cases
|-
| Slides
| surgical
| 20 years
| -
|-
| Wet tissue
| autopsy
| 3 months after final report
| Coroners'/medical examiner cases may be longer
|-
| Paraffin blocks
| autopsy
| 10 years
| Coroners'/medical examiner cases may be longer
|-
| Slides
| autopsy
| 10 years
| Coroners'/medical examiner cases may be longer
|-
|}


==Failure-potential analysis==
==Failure-potential analysis==
Line 253: Line 300:


Note:  
Note:  
*Unfortunately one has to shell-out money to get a peak at 'em.
*Unfortunately one has to shell out money to get a peak at 'em.


==United States of America==
==United States of America==
Line 264: Line 311:


==Canada==
==Canada==
===Canadian immunohistochemistry quality control===
*Abbreviated ''CIQC''.
*[https://ciqc.ca/Pages/default.aspx CIQC webpage (ciqc.ca)]
===Ontario===
===Ontario===
*Quality Management Program - Laboratory Services (QMP-LS).
*[[Institute for Quality Management in Healthcare]] - previously ''Quality Management Program - Laboratory Services''.
**Set-up by the ''Ontario Medical Assocation''.
**Set-up by the ''Ontario Medical Assocation''.
Two divisions:
*External quality assessment (EQA) - external laboratory proficiency testing.
*Ontario Laboratory Accreditation (OLA).


==United Kingdom==
==United Kingdom==
Line 278: Line 325:
*[[Critical values]].
*[[Critical values]].
*[[CAP checklists]].
*[[CAP checklists]].
*[[Tissue floater]].
*[[Histology artifacts]].
*[[Waffle diagnosis]].
*[[Workload measurement]].
*[[Anatomical pathology laboratory processes]].


=References=
=References=
Michael
48,452

edits

Retrieved from "https://librepathology.org/wiki/Special:MobileDiff/15212...46938"

Navigation menu