injections Flashcards
what are the advantages of parenteral route?
- rapid absorption
- only available means for unconscious patient
- only available means when vomiting and diarrhea are present
- concentrate medication in particular area
disadvantages of parenteral route
- pain at injection site
- point of entry for injection
- injury to superficial nerves or vessels
- needle breaking in tissue
- inadvertent injection of blood vessel
- hitting bone
- IRREMOVABLE once injected
diff parts of the syringe
hub, hill, shaft, bevel, lumen, point
plunger, flange, barrel, measure dose here, tip
what are the unit conversions for the barrel of a syringe?
- 1mm = 1cc
- 1 millimeter = 1 cubic centimeter
what are the different types of syringes
- hypodermic syringes
- insulin syringe
- tuberculin syringe
hypodermic syringes
-1cc - 60cc
- can be preloaded with needle or without needle
- luer lock or plain tip
- calibrated in (whole) cc
insulin syringe
- 1cc
- preloaded with needle or without needle
- calibrated in insulin units (IU)
- usually 26g-28g x 1/4”
- INSULIN only
tuberculin syringe
- 1cc
- preloaded with needle
- calibrated in .10 and .01 mL
- HS school uses 25g - 28g x 5/8” needle
- PPD administration (ID)
what are the diff types of syringes
- lengths from 3/8” to 3”
- from medication, gauge range from 18-27
- polished carbon steel cut and angle
what sizes does a hypodermic needle come in
- 2 mL
- 2.5 mL
- 3 mL
- 5 mL
relationship between lumen of a needle and the gauge
- lumen size and gauge are inversely related
- at the lumen gets bigger the gauge gets smaller
diff routes of administration
- intramuscular
- subcutaneous
- intradermal
where can an IM injection be administered
- delt and glute
maximum dose that can be given in the delt via IM
no more than 1cc
maximum does that can be given in the glute via IM
less than 3 cc
