Lab Safety and Chain of Infection Quiz

What are the six components of the chain of infection?

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

What are the three main methods of preventing the spread of biological hazards?

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

What is the recommended procedure for handwashing?

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.

What is the recommended dilution ratio for sodium hypochlorite for effective disinfection?

1:10 Signup and view all the answers

Describe the biohazard symbol.

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. Signup and view all the answers

What is the recommended first aid for chemical spills?

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

What should be done when a fire is discovered?

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 Signup and view all the answers

Explain the steps of using a fire extinguisher.

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. Signup and view all the answers

What are the four types of fire and their corresponding fire extinguishers?

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). Signup and view all the answers

What are some general precautions for avoiding physical hazards?

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. Signup and view all the answers

What are some examples of ergonomic hazards?

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

What are the six components of the chain of infection?

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

What are the recommended personal protective equipment (PPE) for working in a clinical lab?

Gloves, laboratory gown, eye and face shields, countertop shield Signup and view all the answers

What is the proper procedure for handwashing?

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 Signup and view all the answers

Describe the steps in using a fire extinguisher.

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

What are the four types of fire and their corresponding fire extinguishers?

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 Signup and view all the answers

What is the recommended duration for cleaning fingers and wrists?

b. 30 seconds Signup and view all the answers

What does the yellow quadrant in the NFPA hazard classification represent?

c. Specific hazard Signup and view all the answers

What is the best method of radioactive waste disposal for radioiodine?

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

How should acid spills on floors be managed?

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

What is the purpose of the biohazard symbol?

To indicate the presence of hazardous biological materials Signup and view all the answers

What is the recommended first aid for alkali or acid burns in the eye?

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

Lab Safety and Chain of Infection Quiz

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Questions and Answers

What are the six components of the chain of infection?

What are the three main methods of preventing the spread of biological hazards?

What is the recommended procedure for handwashing?

What is the recommended dilution ratio for sodium hypochlorite for effective disinfection?

Describe the biohazard symbol.

What is the recommended first aid for chemical spills?

What should be done when a fire is discovered?

Explain the steps of using a fire extinguisher.

What are the four types of fire and their corresponding fire extinguishers?

What are some general precautions for avoiding physical hazards?

What are some examples of ergonomic hazards?

What are the six components of the chain of infection?

What are the recommended personal protective equipment (PPE) for working in a clinical lab?

What is the proper procedure for handwashing?

Describe the steps in using a fire extinguisher.

What are the four types of fire and their corresponding fire extinguishers?

What is the recommended duration for cleaning fingers and wrists?

What does the yellow quadrant in the NFPA hazard classification represent?

What is the best method of radioactive waste disposal for radioiodine?

How should acid spills on floors be managed?

What is the purpose of the biohazard symbol?

What is the recommended first aid for alkali or acid burns in the eye?

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