| NPU | LOINC | Additional LOINC | Comment |
|---|---|---|---|
| 1881003000106 |Substance concentration of phosphatidylethanol in blood in umol/L (observable entity)| | 755501010000100 |Mass concentration of phosphatidylethanol in blood at point in time (observable entity)| | 756611010000106 |Presence of phosphatidylethanol in blood at point in time by screening (observable entity)| | Referens |
| 1861003000104 |Arbitrary substance concentration of deamidated gliadin peptide IgG in plasma in arbitrary unit (observable entity)| | 749691010000105 |Arbitrary concentration of deamidated gliadin peptide IgG in serum at point in time (observable entity)| | ||
| 1331003000104 |Arbitrary substance concentration of thyrotrophin in plasma in 10^-3/international unit per litre with reference to IRP 80/558 (observable entity)| | 193811010000101 |Arbitrary concentration of thyrotrophin in serum or plasma at point in time (observable entity)| | ||
I cant edit the table above, just create an answer: Either the total amount of phospatidylethanol (PEth) can be measured, or the 40-45% of the PEth containing 16:0/18:1 (palmitic acid / oleic acid). The NPU code is specific for PEth 16:0/18:1. The LOINC code is for total PEth??
Helander, A. and Y. Zheng (2009). “Molecular species of the alcohol biomarker phosphatidylethanol in human blood measured by LC-MS.” Clin Chem 55(7): 1395–1405.
Helander, A., et al. (2019). “Elimination Characteristics of the Alcohol Biomarker Phosphatidylethanol (PEth) in Blood during Alcohol Detoxification.” Alcohol Alcohol.
gliadin peptide IgG: System Plasma (as substance) in NPU compared to Serum (as specimen type) in LOINC. Some manufacturers have documented the specimen type as “serum”, others documents their assays to be used equally well with serum, EDTA and heparin plasma (https://www.idsplc.com/products/deamidated-gliadin-iga/ ). I have seen no data showing difference in results between serum and EDTA or heparin plasma. Can the LOINC code be used if EDTA plasma has been used as specimen type?
The spelling “thyrotrophin” has been discarded since 50 year! Interesting to know why it pops up in SCT!. Thyrotropin is a trophic hormone, as well as a tropic hormone. But the agreed spelling is thyrotropin.
| Kolumn 2 | Kolumn 3 | Kolumn 4 | E |
|---|---|---|---|
| 1011003000107 | Number concentration of basophilic granulocytic cell in blood in 10^9/L (observable entity) | NPU code identifier: NPU01349 | |
| 1021003000103 | Substance concentration of bilirubin in plasma in umol/L (observable entity) | NPU code identifier: NPU01370 | |
| 1031003000101 | Substance concentration of calcifediol in plasma in nmol/L (observable entity) | NPU code identifier: NPU01435 | |
| 1041003000108 | Substance concentration of calcium electrolyte in plasma in mmol/L (observable entity) | NPU code identifier: NPU01443 | |
| 1051003000106 | Substance concentration of urea in plasma in mmol/L (observable entity) | NPU code identifier: NPU01459 | |
| 1061003000109 | Substance concentration of chloride electrolyte in plasma in mmol/L (observable entity) | NPU code identifier: NPU01536 |
Tonights work. I give up table tool…
I put Gunnar’s sheet on Google Drive here:
I have just made a couple of comments
BR Karina