PhD Scientific Days 2020

Clinical Medicine I. Posters

Comparison of Venous and Capillary Sampling Methods by Bedside Testing

Előadó neve

Dr. Végh, Anna

Előadó munkahelye

Semmelweis Egyetem I.sz. Gyermekgyógyászati Klinika

Előadó telefonszáma

06204936016

Előadó e-mail címe

annus.vegh@gmail.com

Az előadás címe

Comparison of Venous and Capillary Sampling Methods by Bedside Testing

Szerző(k) neve és munkahelye

Anna Végh, György S Reusz, Péter Krivácsy
1,2: Semmelweis Egyetem I.sz. Gyermekgyógyászati Klinika, Klinikai Orvostudományok Doktori Iskola
3: Semmelweis Egyetem I.sz. Gyermekgyógyászati Klinika

Szekció

Clinical Medicine I. Posters

Language of the presentation

English

Section, first choice

Clinical Medicine

Section, second choice

Health Sciences

Összefoglaló szövege

Introduction
Analyzing venous samples by point of care testing allows faster turnaround-times and therefore faster descision-making in an emergency department setting. The newer bedside hematology analyzers are able to analyze capillary blood samples. This has additional advantages, due to the less invasive and faster sampling method. However the accuracy of capillary blood sampling does not only depend on the measurement method, but on the sampling technique as well.
Aims
We aimed to compare the capillary and venous sampling techniques in regard of accuracy and precision and to identify their clinical advantages.
Method
We tested the analytical prescision in the first part of our study. Venous and capillary samples were obtained from 26 children, and were analyzed on the Norma Icon 5 part point of care hematology analyser, and the Orion QuikRead go® CRP test. Control measurements were made in the laboratory on a Siemens Bayer Advia 120. In the second part 25 children were divided to randomized groups to have blood tests taken from capillary or venous sampling and to have blood tests processed by point of care or laboratory. We compared the time parameters, the painfulness of blood sampling and patient satisfaction between the groups.
Results
There was no significant difference between the point of care and the laboratory results in the most commonly used parameters (e.g.: RBC, WBC, LYM, GRAN, HGB, HTC, CRP). We also found a good correlation between capillary and venous samples in these parameters. Capillary sampling took 2 minutes less on average. The point of care results were significantly earlier available. (point of care capillary vs. laboratory: p=0,0005, point of care venous vs. laboratory). The pain levels of capillary sampling, measured on different pain scales, suitable for the patient’s age-group, were significantly lower (p=0,028). There was no difference on the self/parent reported measures. The survey we used for measuring patient satisfaction showed high scores in all the questions, but there was no significant difference between the groups.
Conclusion
The point of care testing provides reliable results for most parameters. Further research is needed to investigate whether the differences between capillary and venous results have a definable pattern and to indentify clinical factors that affect the precision of capillary sampling.

Additional Information

Supervisor: Péter Krivácsy
peter.krivacsy@gmail.com

Bemutatás módja

Poszter

Kind

Szabad

Status

elfogadva

Accepted presentation method

poszter

Előadás fájl jóváhagyás

nem rendelkezett róla

Előadó

4631

Start

11:29

End

11:32

Authors (legacy)

Anna Végh, György S Reusz, Péter Krivácsy
1,2: Semmelweis Egyetem I.sz. Gyermekgyógyászati Klinika, Klinikai Orvostudományok Doktori Iskola
3: Semmelweis Egyetem I.sz. Gyermekgyógyászati Klinika