Principles Of Aseptic Technique I PDF

Principles of Aseptic Technique I Check the lettered phrase below that best answers or completes each question or statement. Reference number following each question refers to reference listed with the answers. To find the correct answers and references, refer to page number listed in the index. 1...

Principles of Aseptic Technique I Check the lettered phrase below that best answers or completes each question or statement. Reference number following each question refers to reference listed with the answers. To find the correct answers and references, refer to page number listed in the index. 1\. Which is not considered part of a sterile field? A. Draped table only at table level B. Gown from waist to shoulders in front, and the sleeves C. Gloves of sterile person who has folded his arms D. Only the center of a sterile wrapper The sterile field in a surgical setting is designed to minimize the risk of contamination. Here's why the correct answer is C: A. Draped table only at table level: The sterile field includes the entire area that is draped at table level because it provides a sterile surface for placing sterile instruments and supplies. B. Gown from waist to shoulders in front, and the sleeves: This area of the gown is part of the sterile field. The gown from the waist to the shoulders in the front, along with the sleeves, is considered sterile to ensure that the surgical team remains sterile when handling sterile items. C. Gloves of sterile person who has folded his arms: This option is not considered part of the sterile field. The gloves of a sterile person are only considered sterile if the hands and gloves are actively involved in handling sterile items. When a person folds their arms, the gloves are no longer in a position where they can maintain their sterility effectively. This is because the act of folding arms might potentially expose parts of the gloves to contamination from non-sterile areas or from the person's own gown or arms. D. Only the center of a sterile wrapper: While the center of a sterile wrapper is sterile when initially opened, the surrounding areas and draped items are what define the sterile field. The wrapper itself and its edges are part of the sterile field, provided they are handled correctly. Therefore, option C is correct because gloves that are not actively in use or are in an improper position, like when arms are folded, do not maintain their sterility effectively, thus not being part of a properly maintained sterile field. 2\. The presence of only one living microorganism means an object is: A. Aseptic B. Sanitized C. Disinfected D. Contaminated Answer: D. Contaminated Explanation: If an object has even a single living microorganism, it is considered contaminated. Sterilization is the process that eliminates all microorganisms, while sanitization and disinfection reduce the number of microorganisms to a safe level but do not necessarily make the object completely free of them. 3\. Which statement concerning masks is not true? A. Air must filter through the mask, not escape around it B. As the mask becomes moist, filtration effectiveness decreases C. Ties may be tied crisscross on top of head\\ D. Ties must be tied one on top and one behind Answer: C. Ties may be tied crisscross on top of head Explanation: Masks should be tied with one tie on top of the head and one behind the neck to ensure proper fit and to minimize the risk of the mask slipping or becoming less effective. Tying them crisscross could compromise the mask\'s fit and effectiveness. 4\. In draping a table, the scrub nurse drapes from \_\_\_\_\_\_\_\_\_\_\_\_ to \_\_\_\_\_\_\_\_\_\_\_\_, protecting her gloves \_\_\_\_\_\_\_\_\_\_\_\_. A. Back, front, with sterile towel B. Front, back, by cuffing drape edge C. Front, back, by double gloving D. Side, side, by cuffing drape edge Answer: B. Front, back, by cuffing drape edge Explanation: When draping a table, the scrub nurse should start from the front and drape towards the back. To protect her gloves while draping, the edge of the drape is cuffed. This method helps to ensure that the gloves remain sterile and are not contaminated by the drape or the table surface. 5\. The purpose of the hand scrub by the surgical team is to render their skin: A. Sterile B. Sanitized C. Disinfected D. Surgically clean Answer: D. Surgically clean Explanation: The hand scrub is intended to make the skin surgically clean. This means it reduces the microbial count to a very low level, though it does not make the skin completely sterile. The goal is to minimize the risk of infection by eliminating as many microorganisms as possible. 6\. After steam sterilization, which items should not be considered sterile? A. Suction tips attached to tubing B. Asepto syringes with bulbs attached C. Cautery tips bound with rubber bands Answer: D. All of the above Explanation: After steam sterilization, items such as suction tips attached to tubing, asepto syringes with bulbs attached, and cautery tips bound with rubber bands are often considered not sterile if they have not been properly handled or if they are susceptible to contamination. Proper sterilization involves ensuring that all items are handled correctly and are in a state where they maintain sterility. 7\. Because there is less chance of contamination, the preferred method of gloving is \_\_\_\_\_\_\_\_\_\_\_\_. For changing only a glove during a case, this method \_\_\_\_\_\_\_\_\_\_\_\_ be used. A. Open, can B. Closed, can C. Open, cannot D. Closed, cannot Answer: D. Closed, cannot Explanation: The closed gloving technique is preferred because it minimizes the risk of contamination by keeping the hands covered and controlled throughout the process. However, during a surgical case, if only a single glove needs to be changed, the open gloving method is typically used for practicality and efficiency. Therefore, the closed gloving method cannot be used for changing just one glove during a case. 8\. Which directive for loading a pressure steam sterilizer is incorrect? A. Place all linen packs on edge B. Load liquids first to prevent spillage on packs C. Place uncovered canisters on sides D. Load mesh bottom instrument trays flat Answer: B. Load liquids first to prevent spillage on packs Explanation: Liquids should not be loaded first in a pressure steam sterilizer. They should be placed last to avoid spillage on other items. Loading liquids first can lead to spillage that may contaminate other sterile items. Proper loading involves placing items like linen packs on edge, ensuring uncovered canisters are on their sides, and loading mesh-bottom trays flat. 9\. Which statement is not true? A. If in doubt about sterility of anything, consider it not sterile B. The inside of wrapper edges are sterile C. Sterile persons must avoid leaning over unsterile areas D. A sterile person turns his back to an unsterile area when passing it Answer: B. The inside of wrapper edges are sterile Explanation: The inside edges of wrappers are not considered sterile. Sterility is maintained on the surface of the wrapper and in the central area of the sterile field, but the edges of the wrapper, where it is handled or folded, are not sterile. If there is any doubt about the sterility of an item or area, it should be treated as non-sterile. Sterile personnel must avoid leaning over unsterile areas, and they should turn their back to unsterile areas when passing them. 10\. If the prep site contains a colostomy or draining sinus which cannot be sealed off, it should be scrubbed: A. Last with sponges used once and discarded B. First with separate prep tray C. First with same prep area D. Along with the prep site Answer: A. Last with sponges used once and discarded Explanation: If the prep site includes a colostomy or draining sinus that cannot be sealed off, it should be scrubbed last. This helps prevent contamination of the previously cleaned areas. Sponges used for scrubbing these areas should be used once and then discarded to minimize the risk of spreading microorganisms. 11\. Operating room floors should be flooded with \_\_\_\_\_\_\_\_\_\_\_\_ and \_\_\_\_\_\_\_\_\_\_\_\_ at the end of each \_\_\_\_\_\_\_\_\_\_\_\_. A. Germicidal B. Detergent germicide, wet-vacuumed, case C. Germicidal solution, wet-vacuumed, day D. Detergent germicide, mopped, day A. Germicidal Explanation: The goal for cleaning operating room floors is to ensure that they are thoroughly disinfected to maintain a sterile environment. Here's why option A is the correct answer: Germicidal Solution: The term \"germicidal\" refers to any agent or solution that kills or inhibits the growth of microorganisms. For operating rooms, this means using a solution that has strong disinfectant properties to ensure that all potential contaminants are effectively eliminated. Flooded with Germicidal: The floor should be cleaned with a germicidal agent to ensure that all microorganisms are killed. Simply mopping or using detergent alone is not sufficient to guarantee a sterile environment in an operating room setting. Not Related to Specific Time Frames in Options B, C, or D: The options B, C, and D include specific practices such as \"wet-vacuumed,\" \"day,\" and \"mopped,\" which could be useful but do not capture the primary requirement of using a \"germicidal\" solution. In the context of maintaining high standards for cleanliness and sterility in an operating room, the key aspect is the use of an effective germicidal agent. So, while options B, C, and D include practical steps for cleaning, they do not emphasize the use of a \"germicidal\" solution as crucially as option A.