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Michaels - Safety and the Environment Unit Exam 2025

Total questions: 63

Worksheet time: 32mins

Name
Class
Date
1.

What is the term for the body's defense against harmful microorganisms?

a)

Immunity

b)

vector

c)

contagion

d)

endogenous infection

2.

The infection cycle CONTINUES when a pathogen leaves the ________ and moves to another host.

a)

means of entrance

b)

reservoir host

c)

susceptible host

d)

means of transmission

3.

Which of the following situations best illustrates direct transmission of an infectious disease?

a)

Shaking hands with an infected individual

b)

Using a contaminated towel

c)

Eating food left uncovered

d)

Being bitten by a mosquito

4.

Which of the following diseases is commonly transmitted through airborne particles?

a)

Influenza

b)

Hepatitis B

c)

Dengue fever

d)

Cholera

5.

Which of the following best describes a congenital infection?

a)

Acquired after birth

b)

Transmitted through contaminated food

c)

Passed from mother to child during pregnancy

d)

Spread by insect bites

6.

A person who is at risk of developing an infection because their immune system is weakened, such as someone with HIV/AIDS, is referred to as a?

a)

Vector

b)

Susceptible host

c)

Reservoir

d)

Carrier

7.
Common factors related to the host's susceptibility to infection include?
a)
age and nutritional status
b)
the number and concentration of pathogens
c)
living conditions of the host
d)
the virulence of the pathogen
8.

What is the term for the condition in which harmful microorganisms are either eliminated or kept at a safe level?

a)

sterilization

b)

antisepsis

c)

asepsis

d)

disinfection

9.

Which of the following is an effective way for a medical assistant to prevent the spread of infection in a healthcare setting?

a)

Wearing jewelry while working

b)

Allowing food in patient care areas

c)

Regularly disinfecting surfaces and equipment

d)

Shaking hands with every patient

10.
An object (such as bed sheets, or utensils) that my harbor a disease agent.
a)
Vector
b)
Carrier
c)
Fomite
d)
Pathogen
11.

Which mode of transmission is most commonly associated with the spread of diseases like influenza and measles?

a)

Vector-borne transmission

b)

Waterborne transmission

c)

Airborne transmission

d)

Direct contact transmission

12.

An organism, like a tick, that transmits pathogens from one host to another is known as a (an)

a)

Reservoir

b)

Vector

c)

Antibody

d)

Host

13.

Contaminated water used for drinking is considered a (n) ______ factor in the spread of infectious diseases.

a)

Immunity

b)

Susceptibility

c)

Environmental

d)

Non-communicable

14.

A group of people become ill after sharing a meal at a picnic. What is the most probable route of transmission?

a)

waterborne

b)

foodborne

c)

airborne

d)

vector borne

15.

To prevent the spread of infection, which principles should be followed when maintaining cleanliness in healthcare settings?

a)

sterility

b)

sepsis

c)

asepsis

d)

disinfection

16.
The most important aseptic procedure for a medical assistant is
a)
proper hand hygiene
b)
stocking the office with housekeeping equipment
c)
dusting the furniture in the waiting room
d)
providing tissues to patients with colds
17.

Which of the following is a correct step in aseptic hand washing technique?

a)

drying your hands before turning off the faucet

b)

using your bare hands to close the faucet after washing

c)

scrubbing your hands and forearms thoroughly for the recommended time

d)

touching the inside of the sink while rinsing

18.
Which of the following are considered aseptic precautions?
a)
Not using tissues when coughing
b)
Wearing gloves and a mask when working with a patient if you have a cold
c)
Taking a fever medication before going to work if you have a fever
d)
Leaning against the sink when washing your hands
19.

Which of the following is the safest practice for disposing of needles after use?

a)

Immediately discard needles in a designated sharps disposal container

b)

Break the needle before disposal

c)

Throw needles in the regular trash

d)

Store used needles in your pocket until disposal

20.
Red bags or bags that have a biohazardous waste label are used for
a)
chemicals used in the medical office
b)
used lancets and needles
c)
broken glassware
d)
dressings contaminated with blood or body fluids
21.

Which color is typically used for the universal biohazard symbol on waste bags and containers?

a)

Purple

b)

Orange-Red

c)

White

d)

Green

22.

Which of the following is covered under OSHA's Universal Precautions guidelines?

a)

Tears

b)

Saliva

c)

Urine

d)

Blood

23.

If an employee is exposed to a bloodborne pathogen at work, what is the appropriate next step?

a)

Ignore the incident and continue working

b)

Report the exposure and follow the employer’s post-exposure protocol

c)

Refuse to participate in any follow-up procedures

d)

Immediately quit the job

24.

Within how many days of employment must an employer provide the HBV vaccine to a healthcare worker?

a)

7

b)

30

c)

10

d)

45

25.

If a workplace hazard arises that is not covered by a specific OSHA regulation, what must the employer rely on to ensure worker safety?

a)

The employer can ignore the hazard until a new standard is created.

b)

The employer must follow the general duty clause to protect employees.

c)

Employees must create their own safety procedures.

d)

The employer should only address hazards that are specifically regulated.

26.
The federal administration that was created in 1970 to help protect employee safety in the workplace is ____.
a)
OSHA
b)
CDC.
c)
AMA.
d)
CLIA.
27.

Which part of the "chain of infection" involves germs leaving the body through actions like vomiting or bleeding?

a)

Infectious agent

b)

Portal (means) of exit

c)

Portal (means) of entrance

d)

Susceptible Host

28.

A condition that spreads quickly from person to person is described as ____.

a)

chronic

b)

contagious

c)

hereditary

d)

benign

29.

Which of the following individuals is considered immunocompromised?

a)

a person with seasonal allergies

b)

a person taking immunosuppressive drugs

c)

a person with a broken bone

d)

a person with mild asthma

30.

What is the term for the process of removing dirt and debris from medical instruments, usually involving soap and physical scrubbing?

a)

sanitization

b)

sterilization

c)

disinfection

d)

pasteurization

31.
Which process of cleaning and scrubbing instruments and equipment is referred to as "mid-level clean" and refers to a chemical or physical means of destroying bacteria.
a)
Sanitization
b)
Disinfection
c)
Sterilization
d)
purification
32.

The process that ensures the elimination of all forms of microbial life, including spores, from medical instruments is called ____.

a)

antisepsis

b)

sterilization

c)

pasteurization

d)

cleaning

33.
Who is responsible for preparing the examination room for patients?
a)
Medical assistant
b)
Nurse Practitioner
c)
Housekeeper
d)
Physician's assistant
34.

Abigail is responsible for cleaning the work surfaces in the examination room at her clinic, including the examining table, sink, and countertop. She also needs to clean her school desk. Which of the following methods should Abigail use?

a)

Disinfection

b)

Purification

c)

Sanitization

d)

Fumigation

35.

Why is it important to avoid storing laboratory samples containing infectious agents in the same refrigerator as food items?

a)

There is a risk of cross-contamination that could lead to accidental exposure or ingestion.

b)

Laboratory samples require a different temperature than food.

c)

Food can neutralize the infectious agents.

d)

Infectious agents lose their potency when refrigerated with food.

36.

Ava is working in a hospital room where potentially infectious materials are present. According to OSHA regulations, which of the following activities is she PROHIBITED from doing in that room?

a)

Talking on a cell phone

b)

Washing your hands

c)

Filling the paper towel rack

d)

Chewing gum and applying cosmetics

37.

A patient becomes nauseous and vomits on the waiting room chair and carpet. What is the most appropriate action to take?

a)

Leave the mess for the janitorial staff to handle at the end of the day.

b)

Wipe up the vomit with paper towels and ignore any remaining residue.

c)

Clean the area immediately, following Universal Precautions to protect against infection.

d)

Open a window to air out the room and wait for someone else to clean it.

38.

Sandra is preparing an exam room for the next patient and notices a sticky, unknown residue on the examination chair's armrest. The rest of the room appears clean and ready. What is the most appropriate action for Sandra to take?

a)

Cover the residue with a clean paper towel and proceed with the patient

b)

Ask the patient to wait outside while she properly cleans and disinfects the area

c)

Ignore the residue since the rest of the room is clean

d)

Wipe the residue with a tissue and throw it in the regular trash

39.

Which of the following is NOT a measure to ensure physical safety in a classroom?

a)

Store cleaning supplies out of children's reach

b)

Use non-slip mats in wet areas

c)

Leave electrical cords across walkways

d)

Check toys for broken parts regularly

40.

Which device is commonly used to _______________ surgical tools before they are used in operations?

a)

sanitize

b)

disinfect

c)

store

d)

sterilize

41.
Which of the following refers to the study of microorganisms?
a)
Pharmacology
b)
Microbiology
c)
Hematology
d)
Radiology
42.
Which of the following is characteristic of resident normal flora?
a)
They are normally found on the skin and within the human body.
b)
They have no effect on animals but are dangerous to humans.
c)
They are referred to as pathogenic.
d)
They may lead to serious conditions.
43.
A microorganism capable of causing disease is a ____.
a)
pathogen
b)
macrophage
c)
nucleotide
d)
nucleoside
44.
The bacteria shown in the figure are ____.
a)
vibrios
b)
cocci
c)
spirilla
d)
bacilli
45.
The comma-shaped bacteria pictured here are ____.
a)
bacilli
b)
vibrios
c)
cocci
d)
spirilla
46.
The spiral-shaped bacterium pictured here is classified as a ____.
a)
bacillus
b)
coccus
c)
spirillum
d)
vibrio
47.
The bacteria pictured here are classified as ____.
a)
bacilli
b)
spirilla
c)
cocci
d)
vibrios
48.

Which type of bacteria require oxygen for their survival and growth?

a)

Anaerobes

b)

Aerobes

c)

Spores

d)

Fungi

49.

Which statement correctly describes the growth requirements of anaerobic bacteria?

a)

They require oxygen for survival

b)

They are only found in environments with high oxygen levels

c)

They multiply in environments lacking oxygen

d)

They cannot survive without oxygen

50.

Which of the following describes an organism that obtains nutrients by living inside another living being, often causing harm, and is commonly found in the digestive tract?

a)

Bacterium

b)

Host

c)

Parasite

d)

Mold

51.
An infection caused by a parasite is called a(n) ____.
a)
mordant
b)
infestation
c)
epidemic
d)
pandemic
52.

Michael visits a clinic with a suspected bacterial infection. The doctor decides to culture a specimen from Michael and then test which antibiotics the bacterium is susceptible to. Which of the following procedures is the doctor performing?

a)

Culture and sensitivity (C&S)

b)

KOH mount

c)

Acid-fast stain

d)

Wet mount

53.

Which of the following is NOT considered a component of proper workplace ergonomics?

a)

Adjust your chair to support your lower back

b)

Keep your wrists straight while typing

c)

Place your keyboard at a comfortable height

d)

Position your monitor at eye level, less than 6 inches from your eyes

54.
Which type of specimen is examined for the presence of parasites such as roundworms or tapeworms?
a)
Stool specimen
b)
Wound specimen
c)
Sputum specimen
d)
Blood specimen
55.

Henry is studying diseases that affect the immune system. He learns about a virus that infects and gradually destroys components of the immune system, resulting in AIDS. Which of the following is this virus?

a)

SARS

b)

HIV

c)

MRSA

d)

CMV

56.

Which type of bacteria appear purple under a microscope after performing a Gram stain?

a)

Gram negative

b)

Gram positive

c)

Anaerobic

d)

Aerobic

57.
What is the correct order of the acronym, PASS.
a)
Pull the pin, Aim at the base of the fire, squeeze, sweep
b)
Pull the pin, Aim at the base of the fire, sweep, squeeze
c)
Aim at the base of the fire, pull the pin, sweep, squeeze
d)
Squeeze, sweep, pull the pin, aim at the base of the fire
58.
Which of the following is a form that is required for all hazardous chemicals or other substances used in the laboratory and that contains information about product’s names. Its best to keep the forms in a bright yellow binder.
a)
SDS
b)
Incident report form
c)
OSHA
d)
CLIA
59.

What is the most effective way to reduce the risk of transmitting infections among patients in a hospital?

a)

Sharing personal items with patients

b)

Proper and regular hand hygiene

c)

Reusing disposable medical equipment

d)

Eating in patient care areas

60.

Why is it important for healthcare workers to wear gloves and masks when coming into contact with blood or body fluids?

a)

To follow hospital dress code

b)

To reduce the risk of infection transmission

c)

To save time on cleaning

d)

To make patients feel comfortable

61.

Jackson is at work and touches a doorknob that was previously handled by someone with the flu. Which of the following best describes the mode of disease transmission in this situation?

a)

Shaking hands with an infected person

b)

Inhaling droplets from a sneeze

c)

Touching a contaminated doorknob

d)

Receiving a blood transfusion

62.

Which of the following is the best method to prevent the spread of infection in a healthcare setting?

a)

Wearing jewelry while working

b)

Using the same gloves for multiple patients

c)

Frequent and proper hand washing

d)

Avoiding cleaning surfaces regularly

63.

What is the primary purpose of using personal protective equipment (PPE) in a medical office?

a)

To keep uniforms clean

b)

To protect healthcare workers and patients from exposure to infectious agents

c)

To make staff look professional

d)

To avoid washing hands

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