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LAT Certification

Chapter 12

What are thumb forceps? Tweezer-like instruments that have two jaws and spring handles; jaws close when pressured applied; used for compressing, securing or grasping tissue or dressings
What are dressing forceps? Thumb forceps that have a smoothly serrated tip, with low ridges
What are tissue forceps? Thumb forceps that have articulated teeth at the blade tip to grasp tissues more securely
What are hemostatic forceps? Or Hemostats, designed to clamp onto bleeding tissue containing a severed vessel
What are needle holders? Secure the needles used to suture tissues closed, and used for knot tying
How are surgical needles described? By the shape of the shaft (curvature) and the point type of the tip
What are common needle types? Tapered, conventional cutting, reverse cutting, taper cutting
What are tapered needles used for? Penetrating soft tissues offering no resistance to the needle; have a smooth shaft that ends in a sharp point at the tip
What are conventional cutting needles used for? Typically used for skin sutures; triangular shape from the tip to one third of its curvature, triangle's apex is on the inner curvature
What is the shape of a reverse cutting needle? Triangulr shape from the tip to one third of its curvature, the triangle's apex is on the outer curvature
What is the shape of taper cutting needle? Combines reverse cutting edges at the tip of a tapered needle
What is it called when suture material is already attached to a needle? Swaged-on; that end of the needle is called the swage
What is a scalpel? Rigid cutting instrument for incising or puncturing tissue
How are scissors classified? By the blade tips
What are some types of blades? Blunt-blunt, blunt-sharp, sharp-sharp
What are retractors used for? Increasing the exposure of a surgical site, may be used to apply stretching or pulling force
What characteristics are used to classify suture material? Material, absorbability, filament type
How are sutures sized? By their diameter, numbers 1-6 denote progressively thicker sutures
How does an ultrasonic cleaner work? By converting high-frequency sound waves into mechanical vibrations within a formulated detergent solution to remove residual debris from instruments
What are some ways surgical materials can be sterilized? Autoclave, ethylene oxide gas, hydrogen peroxide plasma, dry heat or liquid sterilants
What is a glass bead sterilizer? A small unit for resterilizing a few instruments (metal only)) in high through-put surgeries in rodents; utilizes dry heat sterilization
What are some common liquid sterilizing agents? Peracetic acid, hydrogen peroxide, glutaraldehyde, orthopthalaldehyde
Created by: CarrieAngeles