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Related Flashcards
Cards In This Set
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What are 3 essential components of LA?
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Syringe, carpule, needle
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Types of syringes?
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Non disposable: breech-loading, metallic, cartridge-type, aspirating; Breech-loading, plastic, cartridge-type, aspirating; Breech-loading, metallic, cartridge-type, self-aspirating; Pressure syringe for pdl; jet injector; disposable syringes; safety syringes; CCLAD.
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Breech-loading implies what?
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The syringe is loaded from the side
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What does an aspirating syringe have that a self-aspirating does not?
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Harpoon
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The harpoon is attached to?
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The piston
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What happens when negative pressure is exerted on the thumb ring?
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Blood enters into the needle IF the needle tip rests within the lumen of a bv.
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Name the parts of a syringe.
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Needle adapter, syringe barrel, piston with harpoon, finger grip, thumb ring
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How do you aspirate?
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Apply positive pressure on thumb ring then pull back 1-2mm
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How does a self-aspirating syringe work?
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Uses the elasticity of the rubber diaphragm inthe cartridge to obtain the necessary negative pressure for aspiration
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Does the self-aspirating syringe aspirate as reliable as the harpoon aspirating syringe?
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Yes
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The major factor influencing ability to aspirate is the?
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Gauge of the needle being used
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What are advantage of a metallic breech loading aspirating syringe?
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Visible cartridge, aspirating with one hand, autoclavable, rust resistant, long lasting
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What are disadvantage of a metallic breech loading aspirating syringe?
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Weight, syringe may be to big for small operators, possibility of infection with improper care
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What are advantages of plastic reusable aspirating syringes?
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Lightweight, visible cartridge, aspiration with one hand, rust resistant, long lasting with proper maintenance, lower cost
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What are disadvantages of plastic reusable aspirating syringes?
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Size may be to big for small operators, possibility of infection with improper care, deterioration of plastic with repeated autoclaving
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