{"id":21986,"date":"2022-06-21T18:29:43","date_gmt":"2022-06-21T10:29:43","guid":{"rendered":"https:\/\/gogoherbs.com\/?p=21986"},"modified":"2026-10-31T18:14:17","modified_gmt":"2026-10-31T10:14:17","slug":"goldsite%e6%96%b0%e5%86%a0%e7%97%85%e6%af%92%e6%8a%97%e5%8e%9f%e5%bf%ab%e9%80%9f%e6%aa%a2%e6%b8%ac%e5%8a%91%e4%bd%bf%e7%94%a8%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/gogoherbs.com\/en\/goldsite%e6%96%b0%e5%86%a0%e7%97%85%e6%af%92%e6%8a%97%e5%8e%9f%e5%bf%ab%e9%80%9f%e6%aa%a2%e6%b8%ac%e5%8a%91%e4%bd%bf%e7%94%a8%e6%8c%87%e5%8d%97","title":{"rendered":"Goldsite COVID-19 Antigen Rapid Test Kit: Home Antigen Self-Testing Sampling, Result Interpretation, and Purchase Guide"},"content":{"rendered":"
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Rapid COVID-19 antigen tests (RATs) have become a common testing tool in many households\u2014when respiratory symptoms such as fever and sore throat appear, a preliminary diagnosis can be obtained in just over ten minutes, allowing for early rest and reducing the risk of infecting family members. This article...\u00a0Goldsite COVID-19 Antigen Rapid Test<\/b>For example, this explains what a rapid antigen test actually measures, how to ensure accurate nasal swab sampling, and how to interpret C-lines and T-lines.Why does a negative result not mean no infection, and why is it necessary to test again after 48 hours?<\/b>And which certifications and lists should be checked when purchasing a quick test kit.<\/p>\r\n<\/blockquote>\r\n

Medical Boundary Reminder:<\/strong>This article compiles information on the use of home antigen rapid tests.This does not constitute diagnosis, treatment or prescription advice.<\/b>Rapid antigen testing belongs to...Auxiliary screening tools<\/b>,resultIt cannot replace a doctor's diagnosis<\/b>(Confirmatory tests required for diagnosis must be arranged by healthcare professionals). If persistent or worsening symptoms occur, such as difficulty breathing, chest pain, confusion, persistent high fever, or if you are a high-risk individual (elderly, pregnant, chronically ill, or immunocompromised), please...Seek medical attention as soon as possible<\/b>Don't rely solely on the results of your quick self-test to make decisions.<\/div>\r\n
Table of contents<\/strong>\r\n
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  1. What does an antigen rapid test measure? How does it differ from a nucleic acid test?<\/a><\/li>\r\n
  2. Goldsite rapid test kit: principles and product specifications<\/a><\/li>\r\n
  3. Usage steps: How to ensure accurate nasal swab sampling<\/a><\/li>\r\n
  4. Interpretation of Results: Positive, Negative, and Invalid<\/a><\/li>\r\n
  5. Why do you need to wait 48 hours after a negative result before testing again?<\/a><\/li>\r\n
  6. Certifications and Lists: What to Check When Purchasing a Quick Testing Kit<\/a><\/li>\r\n
  7. Usage Precautions and Storage Methods<\/a><\/li>\r\n
  8. What to do after getting the test results?<\/a><\/li>\r\n
  9. Options other than COVID-19: Combined rapid test for influenza\/RSV<\/a><\/li>\r\n
  10. Frequently Asked Questions (FAQ)<\/a><\/li>\r\n
  11. Goldsite Antigen Rapid Test Kit Product Information<\/a><\/li>\r\n
  12. Source of information<\/a><\/li>\r\n<\/ol>\r\n<\/div>\r\n

    1. What does an antigen rapid test measure? How does it differ from a nucleic acid test?<\/h2>\r\n

    \u4f9dWorld Health Organization (WHO) Interim Guidance on Antigen Testing<\/a>Antigen diagnostic testing is the collection of antigens.Upper respiratory tract sample or saliva<\/b>Through detectionViral proteins (e.g., nucleoproteins\/nucleocapsid protein N)<\/b>This is used to determine whether there is a COVID-19 infection; while nucleic acid amplification testing (NAAT, such as RT-PCR) detects the virus's nucleic acid (RNA).<\/p>\r\n

    The biggest difference between the two lies in "convenience" and "sensitivity":<\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
    Comparison Items<\/th>\r\nRapid Antigen Test (RAT\/Ag-RDT)<\/th>\r\nNucleic acid testing (PCR\/NAAT)<\/th>\r\n<\/tr>\r\n
    Detect target<\/td>\r\nViral protein (nucleocapsid protein N)<\/td>\r\nViral nucleic acid (RNA)<\/td>\r\n<\/tr>\r\n
    Results<\/td>\r\nGenerally within 15 minutes (approximately 12 minutes for this product).<\/td>\r\nIt needs to be sent to a laboratory, usually taking several hours to several days.<\/td>\r\n<\/tr>\r\n
    Sensitivity<\/td>\r\nLowerHigh viral load, early stage of infection<\/b>When performing best<\/td>\r\nThe level is relatively high, falling within the diagnostic reference standard.<\/td>\r\n<\/tr>\r\n
    Applicable Scenarios<\/td>\r\nHome self-testing, residential care\/school\/workplace screening<\/td>\r\nWhen a medical institution makes a diagnosis and needs to confirm the results<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

    In other words, the value of rapid antigen testing lies inQuick, convenient, and you can do it yourself<\/b>\u2014When you have symptoms and want to know as soon as possible whether you are infected, it can help you get a preliminary answer in ten minutes, allowing you to rest early, wear a mask, and reduce close contact with your family.<\/p>\r\n

    Two important reminders from the WHO.<\/strong>\u2460 Rapid antigen testIt is most effective for patients with high viral load and in the early stages of infection.<\/b>It is most reliable in environments with high viral prevalence; the positive predictive value will be lower in environments with zero or low transmission.
    \u2461 WHO recommends adoptingMeets minimum performance requirements (sensitivity \u2265 80%, specificity \u2265 97%).<\/b>The rapid antigen test; and the sensitivity of the antigen test are clearly stated.Better than nucleic acid testing<\/b>This is especially evident in asymptomatic individuals. Therefore, a negative rapid test only indicates "temporarily undetected," not "definitely no infection."<\/div>\r\n

    2. Goldsite rapid test kit: principle and product specifications<\/h2>\r\n

    Goldsite's SARS-CoV-2 Antigen Kit (Colloidal Gold) uses...Lateral flow immunochromatography<\/b>(lateral flow immunoassay) is a single-use in vitro diagnostic reagent used for...Qualitative detection of SARS-CoV-2 nucleocapsid (N) antigen in human nasal swab samples<\/b>\u3002<\/p>\r\n

    The process can be understood as follows: Place the self-collected nasal swab into an extraction tube pre-filled with solution, exposing the viral antigens. Then, drop the extracted sample into the sample well of the test strip; the sample will flow forward along the test strip. If the sample contains SARS-CoV-2 antigen, it will be detected in the test strip.Test line (T line)<\/b>Display a pink or red horizontal line; andControl line (Line C)<\/b>A red line will be displayed, indicating that the test program has completed normally.<\/p>\r\n

    \u4f9dTechnical statement issued by the manufacturer regarding the variant strain<\/a>The kit usesBoth antibodies target the viral nucleocapsid protein (N protein).<\/b>Since the N protein is crucial for viral survival and is relatively conserved, mutant strains exhibit fewer mutations in the N protein. The manufacturer stated that the detection sensitivity for the original strain, Delta, and Omicron was consistent (LoD = 2.5 ng\/mL) after testing with the recombinant N protein.<\/p>\r\n

    Main specifications (as per product manual)<\/h3>\r\n