Lab Safety and Chain of Infection Quiz

The six components of the chain of infection are: infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.

The three main methods of preventing the spread of biological hazards are: personal protective equipment (PPE), proper handwashing, and disposal of biological wastes.

The recommended procedure for handwashing includes wetting hands with warm water, applying antimicrobial soap, rubbing to form a lather and create friction, thoroughly cleaning between fingers and up to the wrist for at least 15 or 20 seconds, rinsing hands in a downward position, drying with a paper towel, and turning off faucets with a clean paper towel to prevent recontamination.

<p>1:10</p> Signup and view all the answers

<p>The basic outline of the biohazard symbol is a plain trefoil, which is three circles overlapping each other equally like in a triple Venn diagram with the overlapping parts erased. The diameter of the overlapping part is equal to half the radius of the three circles.</p> Signup and view all the answers

<p>Flush the area with water for at least 15 minutes and then seek medical attention.</p> Signup and view all the answers

<p>R - Rescue anyone in immediate danger, A - Activate the institutional fire alarm system, C - Close all doors to potentially affected areas, E - Attempt to extinguish the fire, if possible; exit the area</p> Signup and view all the answers

<p>The steps of using a fire extinguisher are: P - Pull the pin, A - Aim at the base of the fire, S - Squeeze the handles, S - Sweep the nozzle side to side.</p> Signup and view all the answers

<p>The four types of fire and their corresponding fire extinguishers are: Type A - Ordinary combustibles (water, dry chemical), Type B - Flammable liquids (dry chemical, carbon dioxide, halon), Type C - Electrical equipment (dry chemical, carbon dioxide, halon), Type D - Flammable metals (specialized dry powder, fought by specialized firefighters only).</p> Signup and view all the answers

<p>Some general precautions for avoiding physical hazards include: avoiding running in rooms and hallways, watching for wet floors, bending knees when lifting heavy objects, and keeping long hair pulled back.</p> Signup and view all the answers

<p>Some examples of ergonomic hazards include strain due to repeated positions.</p> Signup and view all the answers

<p>I = infectious agent, R = reservoir, E = portal of exit, M = mode of transmission, E = portal of entry, S = susceptible host</p> Signup and view all the answers

<p>Gloves, laboratory gown, eye and face shields, countertop shield</p> Signup and view all the answers

<p>Wet hands with warm water, apply antimicrobial soap, rub to form a lather and create friction, thoroughly clean between fingers and up to the wrist for at least 15 or 20 seconds, rinse hands in a downward position, dry with a paper towel, turn off faucets with a clean paper towel</p> Signup and view all the answers

<p>PULL the pin, AIM at the base of the fire, SQUEEZE the handles, SWEEP the nozzle side to side</p> Signup and view all the answers

<p>Type A - Ordinary combustibles: water, dry chemical, loaded steam; Type B - Flammable liquids: dry chemical, carbon dioxide, halon foam; Type C - Electrical equipment and motor switches: dry chemical, carbon dioxide, halon; Type D - Flammable metals: Metal X, sand; dry powder; fought by lithium fire fighters only</p> Signup and view all the answers

<p>b. 30 seconds</p> Signup and view all the answers

<p>c. Specific hazard</p> Signup and view all the answers

<p>Store the used radioactive material in a locked, marked room until the background count is down to 10 half-lives</p> Signup and view all the answers

<p>Neutralize the acid and then soak it up with wet rags or spill pillows</p> Signup and view all the answers

<p>To indicate the presence of hazardous biological materials</p> Signup and view all the answers

<p>Wash out the eye thoroughly with running water for 15 minutes</p> Signup and view all the answers