Difference between revisions of "L4E rule 1-3 (2014)"

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This article covers '''L4E rule 1''', '''L4E rule 2''', and '''L4E rule 3''' for the 2014 [[L4E]] [[workload]] system. An overview of the L4E rules is found in the [[L4E rules of 2014]].  
This article covers '''L4E rule 1''', '''L4E rule 2''', and '''L4E rule 3''' for the 2014 [[L4E]] [[workload]] system.  


You can test your knowledge in the ''[[Quiz:L4E rules 1-3 (2014)|L4E rules 1-3 quiz]]''.
It should be noted that '''the rules have changed''' in the [[2018 edition of L4E]]; the 2018 version of these rules is found in ''[[L4E rule 1-3 (2018)]]''.
 
An overview of the 2014 L4E rules is found in the [[L4E rules of 2014]].  


==Context==
==Context==
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==Tutorial==
==Tutorial==
The following cases can be used to work through the above rules.
The following cases can be used to work through the above rules. If one clicks "Expand" on the right side one gets the answer with an explanation. It is presumed that no additional stains or levels are done.
{{hide3|1. 3 cores of a neck lymph node. L4E?|Answer: 1 L4E<br>Rule 1}}
{{hide3|1. Three cores of a neck lymph node. L4E?|Answer: 1 L4E<br>Why? Rule 1: 1-5 frags ~ 1 L4E; see ''complex skin biopsies and non-GI biopsies with countable fragments'' }}
 
{{hide3|2. Six cores of a mediastinal mass. L4E?|Answer: 2 L4E<br>Why? Rule 1: 6-10 frags ~ 2 L4E; see ''complex skin biopsies and non-GI biopsies with countable fragments''}}
 
{{hide3|3. Two punch biopsies of BCC. L4E?|Answer: 1 L4E<br>Why? Rule 1: each (simple skin) biopsy is 1 L3}}


{{hide3|2. 6 cores of a mediastinal mass. L4E?|Answer: 2 L4E<br>Rule 1}}
{{hide3|4. Two punch biopsies (centre of lesion + edge of lesion) for an inflammatory skin lesion. L4E?|Answer: 1 L4E<br>Why? Rule 1: complex skin biopsies for same purpose}}


{{hide3|3. 2 punch biopsies of BCC. L4E?|Answer: 1 L4E<br>Rule 1: each biopsy is 1 L3}}
{{hide3|5. Colonic tubular adenoma negative for HGD. L4E?|Answer: 0.5 L4E<br>Why? Rule 1: 1 L3/lesion; see ''surgical GI biopsies (neoplastic/pre-neoplastic)''}}


{{hide3|4. 2 punch biopsies for an inflammatory skin lesion. L4E?|Answer: 1 L4E<br>Rule 1: biopsies for same purpose}}
{{hide3|6. Colonic tubular adenoma with HGD. L4E?|Answer: 1 L4E<br>Why? Rule 1: HGD makes it worth more; see ''surgical GI biopsies (neoplastic/pre-neoplastic)''}}


{{hide3|5. Colonic tubular adenoma negative for HGD. L4E?|Answer: 0.5 L4E<br>Rule 1}}
{{hide3|7. Colonic tubular adenoma negative for HGD and hyperplastic polyp in same container. L4E?|Answer: 1 L4E<br>Why? Rule 1: 1 L3 for TA, 1 L3 for HP - together ~ 1 L4E}}


{{hide3|6. Colonic tubular adenoma negative for HGD and hyperplastic polyp in same container. L4E?|Answer: 1 L4E<br>Rule 1: 1 L3 for TA, 1 L3 for HP - together ~ 1 L4E}}
{{hide3|8. Random colonic biopsies 15 frags. L4E?|Answer: 2.5 L4E<br>Why? Rule 1: 15 frags x L3/3 frags ~ 5 L3, 5 L3 ~ 2.5 L4E}}


{{hide3|7. Prostate biopsy with 12 cores. L4E?|Answer: 6 L4E<br>Rule 2: 12 cores x 1 L3/core ~ 12 L3; 12 L3 ~ 6 L4E}}
{{hide3|9. Random colonic biopsies 20 frags. L4E?|Answer: 3 L4E<br>Why? Rule 1: 20 frags x L3/3 frags ~ 6.66 L3 -> truncated to 6 L3, 6 L3 ~ 3 L4E}}


{{hide3|8. Breast biopsy with 2 cores. L4E?|Answer: 1 L4E<br>Rule 2: 2 cores x 1 L3/core ~ 2 L3; 2 L3 ~ 1 L4E}}
{{hide3|10. Prostate biopsy with 12 cores. L4E?|Answer: 6 L4E<br>Why? Rule 2: 12 cores x 1 L3/core ~ 12 L3; 12 L3 ~ 6 L4E}}
{{hide3|9. Endometrial biopsy in 2 blocks. L4E?|Answer: 1 L4E<br>Rule 3}}


{{hide3|10. Benign TURP with 4 blocks. L4E?|Answer: 2 L4E<br>Rule 3}}
{{hide3|11. Breast biopsy with 2 cores. L4E?|Answer: 1 L4E<br>Why? Rule 2: 2 cores x 1 L3/core ~ 2 L3; 2 L3 ~ 1 L4E}}
 
{{hide3|12. Endometrial biopsy in 2 blocks. L4E?|Answer: 1 L4E<br>Why? Rule 3: 1-3 blocks ~ 1 L4E}}
 
{{hide3|13. Benign TURP in 4 blocks. L4E?|Answer: 2 L4E<br>Why? Rule 3: 4-6 blocks ~ 2 L4E}}
 
{{hide3|14. Benign TURP in 6 blocks. L4E?|Answer: 2 L4E<br>Why? Rule 3: 4-6 blocks ~ 2 L4E}}
 
{{hide3|15. Endometrial biopsy in 5 blocks. L4E?|Answer: 2 L4E<br>Why? Rule 3: 4-6 blocks ~ 2 L4E}}
 
{{hide3|16. Benign TURP in 8 blocks. L4E?|Answer: 3 L4E<br>Why? Rule 3: 7-9 blocks ~ 3 L4E}}
 
==Quiz==
You can test your knowledge in the ''[[Quiz:L4E rules 1-3 (2014)|L4E rules 1-3 quiz]]''.


==See also==
==See also==
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