in my manual, it explains Universal precautions "do not apply to nasal secretions, sputum, saliva, sweat, tears, urine, feces, or vomitus". In the textbook it says that BSI includes not only blood and some body fluids but also urine, feces, wound drainage, oral secretions, and any other body substance.
When they explain Standard Precautions (Routine Practices), it says these apply to blood, all body fluids, secretions, and excretions (except sweat), nonintact skin, and mucous membranes wheter or not blood is present or visible. Standard Precautions combines UP and BSI.
How can universal precautions not apply to urine, feces, oral secretions? Changes over time are a bit confusing.