墨尔本的全科医生Michael Mrozinski在社交媒体上透露了做快速抗原测试(RAT)时出现假阴性的原因,并分享了提高准确性的最佳方法。
这位医生说:
在家自检的时候也应该采集咽部或者鼻腔的样本,确保不会出现假阴性结果。
他说,这么做的原因是Omicron与Delta变异株不同,通过收集咽拭子可以比鼻腔拭子更早检测到。
“大家都知道要采集鼻腔拭子,但也别忘了采集咽拭子,否则可能得到假阴性结果。”
为解决快速抗原检测假阳性问题,澳洲药品管理局(TGA)就“敏感性”将RAT分成了3类,理论上讲,敏感性越高,准确性就越高,检出假阴性的概率也就越小。
以下试剂盒已标记为“非常高敏感性”:
All Test SARS-CoV-2 Antigen Rapid Test (Nasal Swab) (ICOV-502H) Self-Test - Nasal swab
LYHER Novel Coronavirus (Covid-19) Antigen Test Kit (Colloidal Gold) Self-Test - Nasal swab
OnSite COVID-19 Ag Self Test - Nasal swab
Panbio COVID-19 Antigen Self-Test - Nasal swab
Rapid SARS-COV-2 Antigen Test Card Self-test - Nasal swab
V-Chek COVID-19 Antigen Saliva Test - Saliva
以下已标记为“高灵敏性”:
All Test COVID-19 Antigen Rapid Test (Oral Fluid) Self-Test (ICOV-802H) - Oral fluid
Hough COVID-19 Home Test - Nasal swab
JusChek SARS-CoV-2 Antigen Rapid Test (Nasal Swab) INCP-502H Self Test - Nasal swab
JusChek COVID-19 Antigen Rapid Test (Oral Fluid) ICOV-802H Self Test - Oral fluid
My Covid Test Antigen Rapid Test (Oral Fluid) (ICOV-802H) Self-Test - Oral fluid
Orawell COVID-19 Ag Rapid saliva test device (Self-test) - Saliva
RightSign COVID-19 Antigen Rapid Test Cassette (Nasal Swab) - Nasal swab
TESTSEALABS COVID-19 Antigen Test Cassette - Nasal swab
以下被标记为“可接受的敏感性”:
CareStart COVID-19 Antigen Home Test - Nasal swab
Ecotest COVID-19 Antigen Saliva Test kit (COV-S35Pen) - Saliva
InnoScreen COVID-19 Antigen Rapid?Test Device (Self Test) - Nasal swab
SARS-CoV-2 Antigen Self Test Nasal - Nasal swab
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