Fnd Chapter 10 Asepsis A

Communicable diseases are indeed diseases that can be transmitted to other people. These diseases can be spread through various means such as direct contact, airborne droplets, or contaminated surfaces. They are also commonly referred to as contagious diseases and community-acquired infections because they can easily spread within a community or population.

Helminths are a type of parasitic worm that can infect humans and animals. These worms can cause a variety of diseases and health issues. Therefore, it is correct to say that helminths are infectious worms.

Fungi are microorganisms that include yeast and molds and are commonly found on the skin and under nails. Unlike viruses, which are not considered living organisms, fungi are living organisms that can reproduce and grow. Protozoans are single-celled organisms, while prions are infectious proteins. Therefore, fungi is the correct answer in this context.

Nosocomial refers to infections that are acquired while a person is receiving care in a healthcare agency. This term specifically denotes infections that are contracted within a healthcare setting, such as hospitals, clinics, or nursing homes. It distinguishes these infections from those that are acquired in the community or elsewhere. The term nosocomial is used to highlight the potential risks and challenges associated with healthcare-associated infections, and it emphasizes the need for infection control measures in healthcare settings.

PPE stands for personal protective equipment. This refers to any clothing or equipment worn to minimize exposure to hazards that may cause injuries or illnesses. PPE includes items such as gloves, masks, goggles, helmets, and protective clothing. It is used in various industries and workplaces to ensure the safety and well-being of individuals by providing a barrier between them and potential dangers.

Protozoans are single-celled organisms that belong to the kingdom Protista. They are eukaryotic organisms, meaning they have a true nucleus and other membrane-bound organelles. They are typically microscopic in size and can be found in various environments, including freshwater, marine, and terrestrial habitats. Protozoans exhibit a wide range of shapes and forms and can be classified into various groups based on their locomotion and feeding mechanisms. As single-celled animals, they carry out all essential life processes within a single cell, including reproduction, feeding, and excretion. Therefore, the statement "Protozoans are single-celled animals" is true.

The correct answer is bacteria. Bacteria are single-celled microorganisms that can have various shapes, including round-cocci, rod-shaped bacilli, or spiral spirochetes. They can be aerobic or anaerobic, meaning they can survive with or without oxygen. Protozoans, rickettsiae, and fungi are also microorganisms, but they are not the largest single-celled microorganism as stated in the question.

Viruses are the smallest microorganisms that can cause infectious diseases. They can range from being self-limiting to fatal depending on the specific virus and the individual's immune response. Viruses require a host to reproduce and survive, as they cannot replicate on their own. They have the ability to remain dormant in the form of a spore, allowing them to survive in unfavorable conditions. Additionally, viruses are filterable, meaning they can pass through filters that can trap larger microorganisms like bacteria and fungi.

Rickettsiae are a type of microorganism that resemble bacteria. They are obligate intracellular parasites, meaning they cannot survive without a host. Examples of diseases caused by rickettsiae include Lyme disease.

Prions are actually proteins that are misfolded and can cause diseases. They do not contain nucleic acid, which is the genetic material found in cells. Therefore, the statement that a prion is a protein containing nucleic acid is false.

Protozoans do not lack a cell wall. In fact, they are characterized by the absence of a rigid cell wall, which distinguishes them from other microorganisms such as bacteria and fungi. Instead, protozoans have a flexible cell membrane that allows for movement and other cellular processes.

A microorganism refers to living animals or plants that are too small to be seen with the naked eye and can only be observed under a microscope. These microorganisms are commonly known as germs. Therefore, the correct answer is "living animals or plants visible only with a microscope/aka germs".

Asepsis is important because it helps prevent the spread of germs, infections, and further complications. By practicing aseptic techniques, such as washing hands regularly, using sterile equipment, and maintaining a clean environment, the risk of transmitting harmful microorganisms is significantly reduced. This is crucial in healthcare settings to protect both patients and healthcare workers from acquiring and spreading infections. Proper aseptic practices also play a key role in preventing the development of infections in wounds or during medical procedures, ultimately promoting better patient outcomes.

The chain of infection starts with an infectious agent, which is the microorganism that causes the disease. The reservoir refers to the source or habitat where the infectious agent lives and multiplies. The exit route is the way in which the infectious agent leaves the reservoir, such as through bodily fluids or respiratory droplets. The mode of transmission is the method by which the infectious agent is passed from one person to another, such as through direct contact or airborne transmission. The port of entry is the route through which the infectious agent enters a new host, such as through broken skin or inhalation. Finally, the susceptible host is the individual who is at risk of becoming infected by the infectious agent.

Microorganisms are classified into two main groups based on their effects on living organisms. The first group is nonpathogens or normal flora, which refers to microorganisms that are harmless or beneficial to the host organism. These microorganisms can help with various functions such as digestion and immune system regulation. The second group is pathogens, which are microorganisms that cause illness or disease in the host organism. These microorganisms can invade and multiply within the host, leading to various infections and health issues.