Rastgele Seçilen IV Serum Setlerinin Sabit Oranlı İnfüzyona Etkileri: In-Vitro Gösterim

Volumetrik infüzyon pompaları, sıvı replasmanlarının yanı sıra damar içi yolla belirli bir sürede anestezik bir maddenin sabit oranlı infüzyonunda kullanılan elektronik cihazlardır. İçerisine yerleştirilen IV (intravenöz) serum seti hortumu üzerine cihaz tarafından yapılan peristaltik bası, set içerisindeki sıvının ilerlemesini ve infüzyonunu sağlar. Pompalarda tercih edilmesi gereken IV setlerin her ne kadar peristaltik basıya uygun nitelikte tercih edilmesi gerekse de rutin klinik uygulamalarda çoğunlukla klinikten rastgele temin edilen serum setleriyle anestezi sürdürülmektedir. Bu çalışmada, bir tanesi volümetrik infüzyon pompası için özel üretilen referans IV serum seti olmak üzere toplam 15 farklı marka IV serum seti kullanıldı. Çapları ve içlerindeki ölü boşluklar ölçüldükten sonra infüzyon pompasına bağlanarak her bir serum setinden bir saat süreyle çeşme suyu geçirildi ve geçirilen sıvı dereceli silindir içerisinde biriktirilerek ölçüldü. Referans IV seti de dahil olmak üzere farklı IV setlerinin farklı hacimlerde sıvı gönderdiği gözlemlendi ve bu durum beklenen sıvı volümünü %19 oranında etkileyebileceğini gösterdi. IV setinin çapının ölü alanları ve infüzyonu yapılan sıvı hacmini etkilediği belirlendi. Sonuç olarak beklenen ve gözlenen infüzyon hacimlerinin birbiriyle örtüşebilmesi için klinikte kullanılan serum setlerinin cihazda önceden tecrübe edilmesinin bir gereklilik olduğu kanısına varıldı.

Anahtar Kelimeler:

IV set, infüzyon pompası, sabit oranlı infüzyon, serum seti.

The Effects of Randomly Selected IV Serum Sets on Constant Rate Infusion: In-Vitro Demonstration

Volumetric infusion pumps are electronic devices used for fluid replacement as well as constant rate infusion of anesthetic drugs. The device provides the infusion of the fluid in the set by performing peristaltic pressure on the IV (intravenous) serum set hose. Although IV sets are preferred by their peristaltic pressure properties, the random IV sets selected from the clinical field are mostly used in anesthesia. A reference infusion set which was a special product for a volumetric infusion pump, and fifteen different branded IV serum sets were used in this study. After measuring the diameters and dead spaces, serum sets were connected to the infusion pump, tap water was passed from each serum set for an hour, and collected in a graduated cylinder and measured. It was observed that the serum sets, including the reference set, may change the expected fluid volume by 19%. The diameter of the IV set affected the dead spaces and infused fluid volume. It was concluded that to overlap the expected and observed fluid volumes, the brands’ infusion capacity on the pump should be tested on the device before the anesthesia for the clinical fields is a requirement.

Keywords:

constant rate infusion, infusion pump, IV set, serum set,

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