Evidence map›Paper›PMID 32292279›Full record

ArticleBiochemia medica2020

Long-term stability of clinically relevant chemistry analytes in pleural and peritoneal fluid.

Lara Milevoj Kopcinovic, Marija Brcic, Alen Vrtaric, Adriana Unic, Marija Bozovic, Nora Nikolac Gabaj, Marijana Miler, Jelena Culej

Open access · diamondAbstract read
In one paragraph

Article in Biochemia medica, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.5field-weighted citation impact, top 37% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 7 citations in OpenAlex.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Lara Milevoj KopcinovicDepartment of Clinical Chemistry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia.
Marija BrcicDepartment of Clinical Chemistry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia.
Alen VrtaricDepartment of Clinical Chemistry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia.
Adriana UnicDepartment of Clinical Chemistry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia.
Marija BozovicDepartment of Clinical Chemistry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia.
Nora Nikolac GabajDepartment of Clinical Chemistry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia.
Marijana MilerDepartment of Clinical Chemistry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia.
Jelena CulejDepartment of Clinical Chemistry, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia.
University Hospital Centre Zagreb · HR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionOur aim was to investigate the stability of clinically relevant analytes in pleural and peritoneal fluids stored in variable time periods and variable storage temperatures prior to analysis. MATERIALS AND

methodsBaseline total proteins (TP), albumin (ALB), lactate dehydrogenase (LD), cholesterol (CHOL), triglycerides (TRIG), creatinine (CREA), urea, glucose and amylase (AMY) were measured using standard methods in residual samples from 29 pleural and 12 peritoneal fluids referred to our laboratory. Aliquots were stored for 6 hours at room temperature (RT); 3, 7, 14 and 30 days at - 20°C. At the end of each storage period, all analytes were re-measured. Deviations were calculated and compared to stability limits (SL).

resultsPleural fluid TP and CHOL did not differ in the observed storage periods (P = 0.265 and P = 0.170, respectively). Statistically significant differences were found for ALB, LD, TRIG, CREA, urea, glucose and AMY. Peritoneal fluid TP, ALB, TRIG, urea and AMY were not statistically different after storage, contrary to LD, CHOL, CREA and glucose. Deviations for TP, ALB, CHOL, TRIG, CREA, urea and AMY in all storage periods tested for both serous fluids were within the SL. Deviations exceeding SL were observed for LD and glucose when stored for 3 and 7 days at - 20°C, respectively.

conclusionsTP, ALB, CHOL, TRIG, CREA, urea and AMY are stable in serous samples stored up to 6 hours at RT and/or 30 days at - 20°C. Glucose is stable up to 6 hours at RT and 3 days at - 20°C. The stability of LD in is limited to 6 hours at RT.

Indexed as

AgedAged, 80 and overAscitic FluidBlood Chemical AnalysisBlood Specimen CollectionChemistry, ClinicalFemaleHumansMaleMiddle AgedPleural EffusionTime Factorsperitoneal effusionpreanalytical phasestability, pleural effusion

Identifiers

PMID32292279
PMCPMC7138007
OpenAlexW3015931781

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.