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A survey of the results of coagulation studies of blood samples obtained from peripheral Saline lock and Heparin lock catheter and comparing it with direct blood sample
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Z Beheshti *   , M Ashraf Pour , M Haji Ahmadi |
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Abstract: (8609 Views) |
| Background and Objective: Healthcare staffs want to use an accurate method for taking blood sample. To prevent frequent venipunctures in patients who require a routine blood sampling for controlling PT and PTT, 2 methods of Saline lock catheter flushing and Heparin lock catheter flushing were compared to each other. Methods: This study was performed on 60 patients. They were divided into 2 equal groups. Vein catheter for 1 group was flushed by heparinized Saline and for the other group was flushed by saline. 2 blood samples were obtained, one from vein by needle and the other from catheter after 2 ml blood aspiration. PT and PTT tests were performed by coagulometer. Data were analyzed and compared by T-test and paired T-test. Findings: It was not seen a significant difference for PT in 2 methods of Saline lock and Heparin lock with direct method. There was a significant difference for PTT between Heparin lock and direct method (P=0.000) and also between Heparin lock and Saline lock (P=0.006). Conclusion: According to the results, vein Saline lock catheter in comparison to heparinized catheter is a reliable and proper method for coagulation studies. With regard to advantages of normal saline in comparison to heparin, it is suggested that saline to be used for flushing peripheral cannulas. |
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| Keywords: Blood sampling, Coagulation tests, Heparin lock, Saline lock |
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Full-Text [PDF 429 kb]
(2615 Downloads)
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Type of Study: Research |
Subject:
Biochemical
Accepted: 2014/05/31 | Published: 2014/05/31
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