NRS 312 Study Guide - Final Guide: Biological Hazard, Adipose Tissue, Asepsis
Medication Administration: Parenteral
❖ Parenteral Medication Concepts
➢ Bypass GI system
➢ It cannot be removed or retrieved once it is in the body- more dangerous medications
➢ Safety first- be very careful
➢ Requires sterile equipment and medication
➢ Essentials to know
▪ Site landmarks
▪ Maximum volume that can be safely given at that site
▪ Equipment to deliver medication to the site
➢ Equipment
➢ Sterile procedure. Follow sterile technique
➢ We are breaking through a pts first line of defense (skin) and giving an injection
➢ Diameter of needle= known as a gauge. 14 gauge is very large and wouldn’t used on
human
▪ 25 gauge is a very small and thin needle. Don’t hurt as much
▪ IM is a 3ml syringe
▪ Larger number = smaller needle diameter
▪ 21 gauge for IM is because fluid is more viscous or dense
➢ Syringe size
▪ Smaller volumes for injections up to 3ml
▪ Syringe can come with or without needles. Need to come sterile wrap with expiration
date labeled. They are usually packaged separately
❖ Intradermal injections
➢ 10-15 degree angle.
➢ Very small amount
➢ 5/8th of an inch.
➢ 25 gauge
➢ 0.1-1.0 ml
➢ Inner aspect of the forearm
➢ Use Tuberculin Syringe – holds up to 1 ml
➢ PPD common example. Allergy testing
➢ Just under epidermis so slower rate of absorption
❖ Subcutaneous injections
➢ 45-90 dregres angle, needs to stay in subcontanous tissue. We don’t want it in the IM
space
➢ We would use a 1-3ml for SQ but wit hinsulin we would only use an insulin syringe
(orange cap and written in units)
➢ Small amounts: less than 1.5 ml (p.419)
➢ Syringe varies by medication
▪ Insulin syringe only for insulin
▪ May be a 1 ml syringe or a 3 ml syringe
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
It cannot be removed or retrieved once it is in the body- more dangerous medications. Essentials to know: site landmarks, maximum volume that can be safely given at that site, equipment to deliver medication to the site. We are breaking through a pts first line of defense (skin) and giving an injection. Diameter of needle= known as a gauge. 14 gauge is very large and wouldn"t used on human: 25 gauge is a very small and thin needle. Don"t hurt as much: larger number = smaller needle diameter, 21 gauge for im is because fluid is more viscous or dense. Syringe size: smaller volumes for injections up to 3ml, syringe can come with or without needles. Need to come sterile wrap with expiration date labeled. Use tuberculin syringe holds up to 1 ml. Just under epidermis so slower rate of absorption. 45-90 dregres angle, needs to stay in subcontanous tissue. We don"t want it in the im space.
