Question 1

Which of the following definitions is false?&#10;A) A &#34;dirty&#34; object is contaminated by harmful microorganisms.&#10;B) A HAI is an infection spread from Haiti.&#10;C) A &#34;communicable disease&#34; is a disease that is easily spread from one person to another.&#10;D) A &#34;clean&#34; object is free of harmful microorganisms.

Accepted Answer

HAI stands for "Healthcare-associated infection." It is not an infection spread from a specific location or country such as Haiti.

Question 2

HIV is a virus that spreads through which route?&#10;A) sexual contact&#10;B) mucous membranes&#10;C) perinatal contact&#10;D) all of the above

Accepted Answer

HIV can spread through sexual contact, mucous membranes (such as sharing needles or coming into contact with infected bodily fluids), and perinatal contact (such as from mother to child during pregnancy, childbirth, or breastfeeding).

Question 3

In &#34;Contact Precautions,&#34; when should you wear gloves?&#10;A) when directly touching the patient&#10;B) if there are blood or secretions involved&#10;C) when touching environmental surfaces or patient care items&#10;D) all of the above

Accepted Answer

In "Contact Precautions," gloves should be worn in all of the above situations to prevent the transmission of infectious agents.

Question 4

When bacteria form hard shells around themselves as a defense, they are called spores.

Accepted Answer

Bacteria form spores as a defensive strategy against unfavorable conditions, encasing themselves in hard, protective shells to survive extreme environments.

Question 5

&#34;Micro&#34; means harmful.

Accepted Answer

"Micro" is a prefix that means small or tiny, it does not inherently mean harmful.

Question 6

Disinfection of noncritical items, like blood pressure cuffs, used in the care of patients kills low levels of spores.

Accepted Answer

Disinfection of noncritical items is aimed at eliminating most forms of bacteria, viruses, and fungi, but it does not typically kill high levels of spores, which require sterilization to be effectively eliminated.

Question 7

Viruses can survive only in other living cells.

Accepted Answer

Viruses are obligate intracellular parasites that need a host cell in order to survive and replicate. Without a host cell, they cannot carry out metabolic processes, reproduce, or survive for long periods.

Question 8

An object that is free of all microorganisms is known as sterile.

Accepted Answer

This is a true statement. Sterilization is the process of killing or eliminating all microorganisms, including bacteria, viruses, spores, and fungi. Once an object has been sterilized, it is considered free of all microorganisms.

Question 9

Some microorganisms are helpful to humans.

Accepted Answer

Some microorganisms can be used as probiotics, in fermentation processes, in the production of antibiotics, and in the decomposition of waste.

Question 10

For infection to spread there needs to be a source, a host, and a means for transmission.

Accepted Answer

This is correct. Infection requires a source of pathogens (such as bacteria or viruses), a host (such as a person, animal, or plant), and a means of transmission (such as contact with bodily fluids, respiratory droplets, or contaminated surfaces). Without all three of these factors, infection cannot occur and the pathogen cannot spread.

Question 11

Pathogens build human tissue by using it as food.

Accepted Answer

The answer of Pathogens build human tissue by using it...

Deck 6: Infection Control