1.
An infection which is caused by organisms already present in the body is?
Correct Answer
C. Endogenous
Explanation
Endogenous refers to an infection caused by organisms that are already present in the body. This means that the infection originates from within the body rather than being acquired from an external source. It can occur when the body's natural defenses are compromised or when the balance of microorganisms in the body is disrupted. Endogenous infections can be caused by bacteria, viruses, fungi, or other pathogens that are normally present in the body but cause harm when they overgrow or invade tissues.
2.
An infection which remains confined to a particular part of the body is best termed?
Correct Answer
A. Local
Explanation
An infection that remains confined to a particular part of the body is best described as "local." This means that the infection is limited to a specific area and has not spread to other parts of the body. This term is used to differentiate from systemic infections, which affect the entire body.
3.
What substances are produced by the body in response to the entry of a foreign substance into the body?
Correct Answer
B. Antibodies
Explanation
Antigens "ARE" the foreign bodies !
4.
Poisonous substances produced by bacteria and released into the surrounding medium by the living cells
Correct Answer
C. Exotoxins
Explanation
Exotoxins are poisonous substances produced by bacteria and released into the surrounding medium by the living cells. These toxins are secreted by bacteria and can cause damage to host cells or tissues. Unlike endotoxins, which are part of the bacterial cell wall and are only released when the bacteria die, exotoxins are actively produced and released by bacteria during their growth and metabolism. Exotoxins can have various effects on the host, including damaging cell membranes, interfering with cell signaling, or disrupting the immune system.
5.
Poisonous substances produced by bacteria and only released when the bacterial cells die and disintegrate
Correct Answer
A. Endotoxins
Explanation
Endotoxins are poisonous substances that are produced by certain types of bacteria. These toxins are only released when the bacterial cells die and disintegrate. Unlike exotoxins, which are released by bacteria during their growth and metabolism, endotoxins are only released when the bacterial cells break down. This makes endotoxins a unique type of toxin produced by bacteria.
6.
Bacteria are considered?
Correct Answer
A. Procaryotic
Explanation
Bacteria are considered procaryotic because they are single-celled organisms that lack a nucleus and other membrane-bound organelles. They have a simple cell structure and their genetic material is not enclosed within a membrane. This distinguishes them from eucaryotic organisms, which have complex cell structures and their genetic material is enclosed within a nucleus. Bacteria are living organisms that can be found in various environments and play important roles in ecosystems.
7.
The invasion, multiplication and spreading of microorganisms causing harm to the host is?
Correct Answer
D. Infection
Explanation
Infection refers to the invasion, multiplication, and spreading of microorganisms that cause harm to the host. It is a condition where harmful bacteria, viruses, or fungi enter the body and reproduce, leading to various symptoms and health issues. Infections can range from mild, such as common cold, to severe, such as pneumonia or sepsis. Proper hygiene, vaccination, and use of antimicrobial agents are some measures to prevent and treat infections.
8.
Which of the following is used as the standard to measure the effectiveness of chemical disinfectants?
Correct Answer
C. pHenol
Explanation
The Phenol Coefficant
9.
The type of infection that spreads from one area of infection to set up other areas of infection in the body is?
Correct Answer
D. Focal
Explanation
A focal infection refers to an infection that starts in one area of the body and then spreads to other areas. This type of infection can occur when bacteria or other pathogens enter the body through a specific site, such as a wound or dental infection, and then travel to other parts of the body through the bloodstream or lymphatic system. Unlike an epidemic, which refers to the rapid spread of an infectious disease within a specific population or area, a focal infection is more localized and spreads from one area of infection to other areas within the body.
10.
What term refers to the invasion of the body by macroscopic parasites?
Correct Answer
B. Infestation
Explanation
LICE / "CRABS" / SCABIES/ and WORMS (Helminths) are "INFESTATIONS" ! TOTALLY GROSS !
11.
A communicable disease is always infectious?
Correct Answer
A. True
Explanation
TB (Tuberculosis) can and is spread by airborne contact (Droplet Nuclei) , you can spread it from person to person. But remember it can also be a "Latent" infection...you can have it and it will not affect you (you are asymptomatic) but you can spread it still. You are then a convelesant carrier.
12.
An infectious disease is always communicable?
Correct Answer
B. False
Explanation
Lyme Disease is infectious...Spread from the Artropoid Vector (The Tick) to you...but you can not spread it to others, so it is not communicable!
13.
Which is not a viral disease?
Correct Answer
D. SypHilis
Explanation
Syphilis is not a viral disease because it is caused by the bacterium Treponema pallidum, not a virus. Smallpox and cowpox are both viral diseases caused by the variola virus and the cowpox virus, respectively. Herpes is also a viral disease caused by the herpes simplex virus. However, syphilis is caused by a bacterium, making it the correct answer as it is not a viral disease.
14.
Malaria is caused by a?
Correct Answer
D. Protozoan
Explanation
Plasmodium
15.
Grape-Like Clusters?
Correct Answer
A. StapHylococci
Explanation
Staphylococci are bacteria that are known to form grape-like clusters when they grow. This characteristic is due to their growth pattern, where the bacteria divide in multiple planes and form clusters resembling grapes. Staphylococci are commonly found on the skin and mucous membranes of humans and animals, and some strains can cause infections if they enter the body.
16.
Which of the following is caused by a Chlamydia?
Correct Answer
E. Psittacosis
Explanation
Chlamydophila psittaci / formally Chlamydia psittaci: "PARROT FEVER"
17.
Epidemic Typhus caused by the Rickettsia Prowazekii , also called Petechial fever or Putrid Fever is transmitted by the following vector?
Correct Answer
D. Lice
Explanation
Epidemic Typhus, caused by Rickettsia Prowazekii, is transmitted by lice. Lice infestations are common in overcrowded and unsanitary conditions, making it easier for the bacteria to spread. The lice become infected with Rickettsia Prowazekii when they feed on the blood of an infected person. When the lice bite another person, they transmit the bacteria through their feces, which is then scratched into the skin, leading to infection. Therefore, lice act as the vector for transmitting epidemic typhus.
18.
Which of the following is not an STD?
Correct Answer
A. Tularemia
Explanation
Tularemia is "RABITT FEVER"
19.
Which of the following indicate a decreased count of white blood cells?
Correct Answer
C. Leukopenia
Explanation
Leukopenia is the correct answer because it refers to a decrease in the count of white blood cells. Anemia, on the other hand, is a decrease in the number of red blood cells. Leukocytosis indicates an increased count of white blood cells, and erythrocytosis refers to an increased count of red blood cells.
20.
Ebola has been diagnosed, is the corpse contagious?
Correct Answer
A. YES
Explanation
Ebola infected bodies require full body PPD and Cremation. NO EMBALMING, NO VIEWING, NO DIRECT HANDELING ! I wrote this one, way before the 2014 West African Outbreak!
21.
WHICH of the following lists of RARE Contagious diseases are only truly diagnosed definitively by Post Mortem Brain Exam?
Correct Answer
B. CJD / KURU/ RABIES
Explanation
Look them all up ....especially "Herpetic Whithlow", you'll never put on make-up ever again with out gloves ! Acanthamoeba keratitis is my favorite "Monster's Inside ME" Pathogen !