การลดปริมาณเลือดทิ้งผ่าน Arterial line ในการส่งตรวจค่า PT PTT และ INR  ในผู้ป่วยผ่าตัดหัวใจ

Khwanla Peukaon; Chainarong Limcharoen; Nongluck Bunyia; Jesada Methrujapanon; Wachirasak  Phurisawat; Pimpha  Ratchakwan

Authors

Khwanla Peukaon Buddhachinaraj Hospital, Phitsanulok
Chainarong Limcharoen Buddhachinaraj Hospital, Phitsanulok
Nongluck Bunyia Buddhachinaraj Hospital, Phitsanulok
Jesada Methrujapanon Buddhachinaraj Hospital, Phitsanulok
Wachirasak Phurisawat Buddhachinaraj Hospital, Phitsanulok
Pimpha Ratchakwan Buddhachinaraj Hospital, Phitsanulok

Keywords:

Arterial line, Blood coagulation, Open heart surgery

Abstract

The purpose of the quasi-experimental study was to compare the PT, PTT, and INR coagulation values between 7 ml. and 3.5 ml. of blood drawn from an arterial line discarded prior to the blood test. Samples were 30 patients after open heart surgery in a cardiovascular thoracic invasive care unit from December 2017 to March 2018. Research instruments were 1) the demographics data of open-heart patients including gender, diagnosis, and surgery, 2) the PT, PTT, and INR coagulation record form, and 3) the blood coagulation analyzer. Data were analyzed by using paired t-tests for the PT, PTT, and INR coagulation values between 7 ml. and 3.5 ml. of blood drawn from an arterial line discarded prior to a blood test. The study results showed that the PT, PTT, and INR coagulation values between 7 ml. and 3.5 ml. of blood drawn from an arterial line discarded prior to a blood test were not different. Therefore, to reduce the volume of discarded blood drawn from the arterial line among patients after open heart surgery, nurses can draw only 3.5 ml. of blood from the arterial line prior to a coagulation blood test.

References

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