L&S C30T Lec5 - L&S 30 Lecture 5 Routes of...

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L&S 30 Lecture 5 Routes of Administration: Injection Intravenous (IV) Directly into blood vessel Time to brain ~20 sec, depending on injection site Intramuscular (IM) Inject into muscle mass Not directly into blood vessel Takes longer to get absorbed Time to brain ~3 min Intraperitoneal (IP) Administered for animals quickly and efficiently Goes in abdominal cavity where there are many blood vessels Time to brain ~3 min Subcutaneous (subQ) Slow and steady absorption Time to brain ~ many minutes Injection is the most efficient for water-soluble substances Rapid entry of large dose Useful in medicine Also most danger potential: overdose, infectious disease Popular for heroin users, more so than smoking & snorting Not in hospital situations because sterile, but people reuse equipment on the street so risk of infectious diseases quite high Ex. Bacteria causes abysses Ex. Viral diseases such as HIV, hepatitis
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