week 9-injections Flashcards
(34 cards)
Parenteral meds
ID, SC, IM, IV.
these meds are absored more quickly than oral meds and are irretrivable once injected
a nurse typically uses a syringe ranging from
1-3ml in size for injections
the larer-sized syringes (10, 20, and 50 ml)
are not used to admin drugs directly but can be useful for adding meds to IV solutions or for irrigating wounds
insulin syringe
has a unit scale specially desgned for insulin and is the only syringe that should be used to adim insulin.
the tuberculin syringe was
originally used to test TB, can also admin drugs to infants.
the larger non luer-lok syringe is often used
for irrigation (lavage)
three parts of a needle
- hub
- cannula
- bevel
longer bevels provide
the sharpest needle, cause less discomfort, and are commonly used for subcut or IM injections
short bevels
for ID AND IV because a long bevel can becom occluded if it rests against the side of a blood vessel
the larger the gauge number
the smaller is the diameter of the shaft. smaller gauges cause less damage and are ideal for daily injections
for IM injections
the needle should be long enough to reach the muscle but not so long that it penetrates to underlying blood vessels or bone.
usually 2.5 cm needle is used
for the avg. person
SUBCUT injection needle
25 to #27 gauge and 16 mm long
ampule
glass container for single dose
vial
small glass bottle with a sealed rubber cap
if multidose vials are used
they should be used for the same client
a vial of insluin that does not have the added protein (hum R) should never be
contaminated with insulin that does not have the added protein (hum N)
when you inject air into the vial make sure the needle
does not touch the insulin.
inject air into HUM N and then
air into HUM R and then withdraw HUM R and then HUM N
ID injections
into the dermal layer just below the epidermis. usually only a small amount is injected (.1 ml) USED FOR allergy testing and TB.
COMMON SITE is the flexor of the forearm
NEEDLE SIZE- #25 - #27 and a needle that is 12 mm to 16 mm long
SUB CUT injections
- just beneath the skin
- COMMON SITES- abdomen, upper arms, top of thighs. (they have good circulation)
- only small doses are used (less than 1 ml)
- SIZE NEEDLE-#23- #25 and 16 mm long
one method nurses use to determine length of needle (SUB CUT)
is to pinch the tissue and sleect a needle length that is half the width of the skinfold.
to determine angle of insertion (SUB CUT)
45 degree angle is used when 2.5 cm tissue can be pinched and 90 dgress when theres 5 cm of tissue pinched
insulin should be injected in what angle?
90 degrees.
