Evaluation of Prothrombin Time in Acute Acetaminophen Overdose treated by N-acetylcysteine

Background: Acetaminophen (N-Acetyl-p aminophenol; APAP) is one of the most common types of analgesics. It is also the most common xneobitic reported to poison centers. This study investigates if therapeutic doses of NAC can falsely increase coagulation tests, prothrombin time (PT) and bleeding time...

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Main Authors: Babak Mostafazadeh, Soheila Vaghefi, Mohammadali Emamhadi, Latif Gachkar
Format: Article
Language:English
Published: Mashhad University of Medical Sciences 2016-02-01
Series:Asia Pacific Journal of Medical Toxicology
Subjects:
Online Access:http://apjmt.mums.ac.ir/article_7352_11b27c9c2774f607c70cc673ee70bc12.pdf
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author Babak Mostafazadeh
Soheila Vaghefi
Mohammadali Emamhadi
Latif Gachkar
author_facet Babak Mostafazadeh
Soheila Vaghefi
Mohammadali Emamhadi
Latif Gachkar
author_sort Babak Mostafazadeh
collection DOAJ
description Background: Acetaminophen (N-Acetyl-p aminophenol; APAP) is one of the most common types of analgesics. It is also the most common xneobitic reported to poison centers. This study investigates if therapeutic doses of NAC can falsely increase coagulation tests, prothrombin time (PT) and bleeding time (BT). ​​ Methods: Thirty-six APAP poisoned patients whose acetaminophen serum concentration were in toxic zone in the Rummak-Matheiw graph were treated by NAC according to standard intravenous 21 hours protocol.  Prothrombin time (PT) and bleeding time (BT) in all cases were measured before the start of the NAC and at the 8th and 16th hour of the treatment. Results: The mean age of the cases was 21.5 ± 5.12 years old. Among them, 31 cases (86%) were female. The mean dose of ingested APAP was 9.6 ±2.0 grams (7.8 – 16.1 g). Mean of SLA was 196.0±37.7. The means of BT were nor significantly different at all evolution times (2.6±0.64, 2.6±0.62 and 2.6± 0.6. The means of PT rose at 16th hour of NAC treatment in as compared 8th hour (16.1± 1.1 s 12.3±0.6 s, respectively) (P
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spelling doaj.art-3fa8176ebffb4df9bbdd11d8ac31f0082022-12-21T23:17:35ZengMashhad University of Medical SciencesAsia Pacific Journal of Medical Toxicology2322-26112322-43202016-02-0152464810.22038/apjmt.2016.73527352Evaluation of Prothrombin Time in Acute Acetaminophen Overdose treated by N-acetylcysteineBabak Mostafazadeh0Soheila Vaghefi1Mohammadali Emamhadi2Latif Gachkar3Associate Professor, Department of Forensic Medicine and Toxicology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.Clinical Specialist in Forensic Medicine and Toxicology, Mofid Educational Hospital, Department of Forensic Medicine and Toxicology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, IranAssociate Professor of Forensic Medicine and Toxicology, Department of Forensic Medicine and Toxicology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, IranProfessor of Infectious Diseases, School of Medicine, Department of Infectious Diseases, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, IranBackground: Acetaminophen (N-Acetyl-p aminophenol; APAP) is one of the most common types of analgesics. It is also the most common xneobitic reported to poison centers. This study investigates if therapeutic doses of NAC can falsely increase coagulation tests, prothrombin time (PT) and bleeding time (BT). ​​ Methods: Thirty-six APAP poisoned patients whose acetaminophen serum concentration were in toxic zone in the Rummak-Matheiw graph were treated by NAC according to standard intravenous 21 hours protocol.  Prothrombin time (PT) and bleeding time (BT) in all cases were measured before the start of the NAC and at the 8th and 16th hour of the treatment. Results: The mean age of the cases was 21.5 ± 5.12 years old. Among them, 31 cases (86%) were female. The mean dose of ingested APAP was 9.6 ±2.0 grams (7.8 – 16.1 g). Mean of SLA was 196.0±37.7. The means of BT were nor significantly different at all evolution times (2.6±0.64, 2.6±0.62 and 2.6± 0.6. The means of PT rose at 16th hour of NAC treatment in as compared 8th hour (16.1± 1.1 s 12.3±0.6 s, respectively) (Phttp://apjmt.mums.ac.ir/article_7352_11b27c9c2774f607c70cc673ee70bc12.pdfAcetaminophen PoisoningN-acetylcysteineBleeding TimeProthrombin Time
spellingShingle Babak Mostafazadeh
Soheila Vaghefi
Mohammadali Emamhadi
Latif Gachkar
Evaluation of Prothrombin Time in Acute Acetaminophen Overdose treated by N-acetylcysteine
Asia Pacific Journal of Medical Toxicology
Acetaminophen Poisoning
N-acetylcysteine
Bleeding Time
Prothrombin Time
title Evaluation of Prothrombin Time in Acute Acetaminophen Overdose treated by N-acetylcysteine
title_full Evaluation of Prothrombin Time in Acute Acetaminophen Overdose treated by N-acetylcysteine
title_fullStr Evaluation of Prothrombin Time in Acute Acetaminophen Overdose treated by N-acetylcysteine
title_full_unstemmed Evaluation of Prothrombin Time in Acute Acetaminophen Overdose treated by N-acetylcysteine
title_short Evaluation of Prothrombin Time in Acute Acetaminophen Overdose treated by N-acetylcysteine
title_sort evaluation of prothrombin time in acute acetaminophen overdose treated by n acetylcysteine
topic Acetaminophen Poisoning
N-acetylcysteine
Bleeding Time
Prothrombin Time
url http://apjmt.mums.ac.ir/article_7352_11b27c9c2774f607c70cc673ee70bc12.pdf
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