The 20-minute whole blood clotting test (20WBCT) has been used to detect coagulopathy following snakebite for almost 50 years. A systematic review and meta-analysis of the 20WBCT was conducted to evaluate the accuracy of the 20WBCT to detect coagulopathy, indicative of systemic envenoming.

2021年8月10日 · In this review, we conclude that the 20WBCT is capable of detecting coagulopathy following snakebite with high specificity and acceptable sensitivity. Diagnostic test accuracy of the 20WBCT is improved when assessing for the presence of severe coagulopathy.

WBCT20 results were normal in 33.7% and unclottable in 66.3% of cases, while LWCT results were normal in 23.6% and altered (prolonged or unclottable) in 76.4% of cases, with no significant differences. The WBCT20 is important for rapidly diagnosing …

2019年8月1日 · WBCT20 is a highly sensitive test with excellent reliability for detecting envenomation. However, the false positive rate in this study was 24%. Asymptomatic snake bite patients with a positive WBCT20 but no corresponding clinical signs of envenomation should be tested using PT/INR before receiving …

The 20-minute Whole Blood Clotting Test (20WBCT, also WBCT20) is a simple bedside procedure to assess coagulopathy following snakebite. However, it is not without its limitations.

2022年10月14日 · All patients fulfilling the criteria were assessed using a 20 min WBCT (20'WBCT). The 20'WBCT was repeated every 30 min up to 3 h, then every 6 h for 24 h. If the bite is known to be from a hump-nosed pit viper, the 20'WBCT was repeated six hourly for an extended period of 48 h, even if the initial evaluation by 20'WBCT was normal.

2023年6月26日 · Our findings show that the 20WBCT is a simple, cheap, and easily accessible bedside test with a high sensitivity for the detection of patients with VICC following carpet viper envenoming in North-eastern Nigeria.

TL;DR: The 20-minute whole blood clotting test is a simple bedside test to screen for and monitor coagulopathy in resource-limited settings and assess vital parameters and initiate resuscitation measures if the patient is clinically unstable with signs …

2019年3月22日 · 世界卫生组织指南推荐的20分钟全血凝血试验（20'wbct）可能是国内最常用的床边筛查工具。 改良的 Lee 和 White (MLW) 方法给出了一个值，该值在连续执行时给出了凝血时间的...。

The whole blood clotting test is a blood test used to check the coagulation mechanism in the blood following a snake bite. [1] . If the test is positive after a bite in South East Asia it indicates the snake was a viper rather than an elapid. [1] . It can also be used to assess the effectiveness of antivenin therapy. [2]