Test 1- armementarium Flashcards
How many types of syringes
8
ADA criteria for acceptance of syringes
- durable, withstand sterilzation
- accept wide variety of syringes and needles
- inexpensive, self contained, lightweight, use with 1 hand
- provide effective aspriation that can be seen
what does breech loading mean
loaded from the barrel of the syringe
what are the types of non disposable syringes
- breech loading, metallic cartridge type, aspirating
- ” ,plastic, “,”
- ”,”,”,self aspirating
What are the 4 types of syringes
- nondisposable
- disposable
- safety syringes
- computer controlled
what is a jet injector
- needle free
- high pressure, pushes through mucous membrane
What does the gauge refer to
the diameter of the lumen of the needle, the smaller the number the greater the diameter of the lumen
what are the components of a needles
-bevel, shaft, hub, syringe adaptor, cartridge penetration end
What percent of aspirations were achieved with:
25 gaugue
27 gauge
30 gauge
- 100%
- 87%
- 2%
what are the advantages of larger gauge needles over smaller gauge
- less deflection
- greater acuracy of injection
- less chance of breakage
- easier aspiration
- no difference in pt comfort
what is the length of needles from tip to hub
25 gauge long- 35 mm 27 gauge long- 36mm 27 gauge short- 26 mm 28 gauge long- 31 mm 28 gauge short- 22 mm
what are the approximate lengths of long and short needles
- long 32 mm
- short- 20 mm
how often should needles be changed
after 3 or 4 tissue penetrations
what will weaken the needles and increase likeihood of breakage
bending the needles
if the direction of the needle should be changed when should you do this
it should first be withdrawn almost completely then direction altered
what are the components of a prefilled 1.8 cartridge
cylindrical glass tube, stopper, aluminum cap, diaphragm
what allows the stopper to slide in the glass tube
the stopper being lubricated with silicone
what color is associated with articaine HCl 4% with epi 1:100,000
gold
what color is associated with bupivicaine HCl .5% with epi 1:200,000
blue
what color is assoicated with lidocaine HCl 2%
light blue
what color is associated with lidocaine HCl 2% with epi 1:50,000
Green
what color is associated with lidocaine HCl 2% with epi 1:100,000
red
what color is associated with Mepivicaine HCl 3%
tan
what color is associate with Mepvicaine HCl 2% with levonordefrin 1:20.000
Brown
what color is associated with Prilocaine HCl 4%
Black
What color is associated with Prilocaine HCl 4% with 1:200,000 epi
Yellow
what is the plastic label on all cartriges for
protect patient from cracking glass, indications about drugs
what is a vasopressor drug
its included in most cartriges to enhance safety and the duration and depth of action of the local anesthetic
what is the pH of dental cartriges containing vasopressors
-lower (more acidic) than non vasopressor containing cartridges
what do cartridges containing vasopressors also usually include
antioxidant, usually sodium bisulfite
what is added to a cartridge to make it isotonic with tissues of the body
sodium chloride
what provides volume to a cartridge
distilled water
What are problems that can arise with cartriges
- bubble in cartridge
- extruded stopper
- burning on injection
- sticky stopper
- corroded cap
- rust on the cap
- leakage during injection
- broken cartridge
can solutions diffuse through the diaphragm
yes
what can burning on injection result from
- normal response to the pH of the drug
- cartridge containing sterilization solution
- overheated cartridge
- cartridge containing vasopressor
why do you get leakage
cartridge and needles are prepared improperly
what is the most common cause of cartridge breakage
use of cartridge that has been cracked or chipped during shipping
