HSC0003 Ch 10 Actual with Questions
and correct/verified Answers
1. Why is it critical for health care workers to apply infection control practices in the workplace? -
ANSWER-Failure to prevent the spread of an infectious disease can cause unnecessary pain, suffering,
and even death. Regulatory standards have been developed to prevent pathogens from being passed
from patient to patient, staff to patient, patient to staff, or staff to staff.
2. What theories and discoveries led up to microbiology as we know it today? - ANSWER-The significant
discovery was the microscope. It was invented by Anton van Leeuwenhoek in the 1600s. In the 1800s,
Louis Pasteur, a French biochemist and physicist, used the microscope to develop the germ theory, which
stated that specific microorganisms called bacteria cause specific diseases in both humans and animals.
3. Name and describe the characteristics of each of the five types of infectious microbes. Include
examples of diseases caused by each type. - ANSWER-* Bacteria are one-celled plants and can be either
pathogenic or nonpathogenic. Bacteria are characterized by their shapes; they can be round, rod, or
spiral. Diseases: abscesses, boils, wound infections, urinary tract infections, pneumonia, rheumatic fever,
severe sore throat, tuberculosis, tetanus, whooping cough, food poisoning, diphtheria, typhoid fever,
syphilis, and cholera.
* Viruses are the smallest of the microbes. Viruses are not whole cells, and they depend on host cells for
food, nutrients, and a means of reproduction. Diseases: common cold, flu, pneumonia, chicken pox,
croup, hepatitis B, AIDS, measles, mumps, warts, herpes, and polio.
* Fungi are a large group of simple plants. Two forms of fungi are potential pathogens: yeasts and molds.
Yeasts are one-celled and molds are multi-celled plants. Both are present everywhere. Diseases:
ringworm, scalp and skin infections, systemic infections.
* Rickettsia are smaller than bacteria and have rod or spherical shapes. Rickettsia must live in other cells.
Diseases: several types of typhus and Rocky Mountain spotted fever.
* Protozoa are the only microorganisms classified as animals. They are one-celled, plentiful in the
environment, and reside in and on the body. Diseases: dysentery, trichomonas, toxiplasmosis,
pneumonia, and malaria.
4. What are the elements in the chain of infection, and how can it be broken? - ANSWER-The chain of
infection explains how infectious diseases occur and are transmitted. There are six elements in the chain:
* The infectious agent
and correct/verified Answers
1. Why is it critical for health care workers to apply infection control practices in the workplace? -
ANSWER-Failure to prevent the spread of an infectious disease can cause unnecessary pain, suffering,
and even death. Regulatory standards have been developed to prevent pathogens from being passed
from patient to patient, staff to patient, patient to staff, or staff to staff.
2. What theories and discoveries led up to microbiology as we know it today? - ANSWER-The significant
discovery was the microscope. It was invented by Anton van Leeuwenhoek in the 1600s. In the 1800s,
Louis Pasteur, a French biochemist and physicist, used the microscope to develop the germ theory, which
stated that specific microorganisms called bacteria cause specific diseases in both humans and animals.
3. Name and describe the characteristics of each of the five types of infectious microbes. Include
examples of diseases caused by each type. - ANSWER-* Bacteria are one-celled plants and can be either
pathogenic or nonpathogenic. Bacteria are characterized by their shapes; they can be round, rod, or
spiral. Diseases: abscesses, boils, wound infections, urinary tract infections, pneumonia, rheumatic fever,
severe sore throat, tuberculosis, tetanus, whooping cough, food poisoning, diphtheria, typhoid fever,
syphilis, and cholera.
* Viruses are the smallest of the microbes. Viruses are not whole cells, and they depend on host cells for
food, nutrients, and a means of reproduction. Diseases: common cold, flu, pneumonia, chicken pox,
croup, hepatitis B, AIDS, measles, mumps, warts, herpes, and polio.
* Fungi are a large group of simple plants. Two forms of fungi are potential pathogens: yeasts and molds.
Yeasts are one-celled and molds are multi-celled plants. Both are present everywhere. Diseases:
ringworm, scalp and skin infections, systemic infections.
* Rickettsia are smaller than bacteria and have rod or spherical shapes. Rickettsia must live in other cells.
Diseases: several types of typhus and Rocky Mountain spotted fever.
* Protozoa are the only microorganisms classified as animals. They are one-celled, plentiful in the
environment, and reside in and on the body. Diseases: dysentery, trichomonas, toxiplasmosis,
pneumonia, and malaria.
4. What are the elements in the chain of infection, and how can it be broken? - ANSWER-The chain of
infection explains how infectious diseases occur and are transmitted. There are six elements in the chain:
* The infectious agent
