Someone with a science background explain this paper to me

No.12118003 ViewReplyOriginalReport
https://pubmed.ncbi.nlm.nih.gov/22721931/

Specifically this part:
>Results: The prevalence of albuminuria (laboratory ACR?30 mg/g) in the study population was 20.2%. Sensitivity and specificity of the point-of-care test for detecting albuminuria were 83.2% and 80.0%, respectively. Positive and negative predictive values were 51.2% and 95.0%, respectively; positive and negative likelihood ratios were 4.16 and 0.21, respectively.

How accurate is the test? I want to know because I done the same test and it came back bad and now I need to see a doctor. How accurate is it in detecting chronic kidney disease. Just need an anon to explain the text I highlighted above to me.

Pic unrelated