CH 7 Antibiotics, Antifungals, and Antivirals Flashcards
- Which term describes an invasion by pathogens that reproduce, multiply, and cause infection?
Infection
Immunization
Hypersensitivity
Anaphylaxis
Infection
An infection is an invasion by pathogens that reproduce, multiply, and cause disease.
- One-celled plants and animals are called:
unicells.
microorganisms.
antibodies.
mycoses.
microorganisms.
Microorganisms are tiny, one-celled plants and animals. They are also called microbes.
- Which term describes microbes that produce infection and disease?
Penicillinase
Bactericides
Pathogens
Leukocytes
Pathogens
Microbes that produce infection and disease are called pathogens.
- Which bacteria would cause an infection deep within the body, such as in a joint?
Arthrogenic bacteria
Aerobic bacteria
Anaerobic bacteria
Acidophilic bacteria
Anaerobic bacteria
Anaerobic bacteria can survive without oxygen and can grow deep within the body, such as in a joint.
- Which term means rod-shaped bacteria?
Cocci
Bacilli
Spiral
Vibrios
Bacilli
Bacilli are rod-shaped bacteria.
- Which is the most important defense mechanism of the external immune system?
Mucous membranes
Tears
Stomach secretions
Skin
Skin
The skin is the most important defense mechanism of the external immune system.
- Which cells are part of the internal immune system?
Erythrocytes
Thrombocytes
Leukocytes
Dermatophytes
Leukocytes
Leukocytes are part of the internal immune system. Their function is to fight infection. They are also called white blood cells, and they produce protein antibodies that help destroy microorganisms as they enter the body.
- Which protein is (are) produced when an unfamiliar microorganism enters the body?
Antibodies
Hemoglobin
Myoglobin
Phagocytes
Antibodies
Antibodies are produced when unfamiliar microorganisms enter the body.
- Which term describes a way of stimulating the production of antibodies by exposing the body to weakened or killed germs?
Immunization
Infection
Isolation
Administration
Immunization
Immunization is a way of stimulating production of antibodies by exposing the body to weakened or killed germs.
- The process of placing a small amount of dead or weak disease germs into the body is called:
vaccination.
administration.
injection.
introduction.
vaccination.
Vaccination is the process of introducing an infectious agent to the body to establish resistance to an infection.
- Thin, less elastic skin, decreased secretion of stomach acid, and weakened muscular structures are all risks factors for infection in a(n):
AIDS patient.
pediatric patient.
older adult patient.
postoperative patient.
older adult patient.
Risk factors for infection in the older adult patient include thin, less elastic skin, decreased secretion of stomach acid, and weakened muscular structures.
- Which term means an infection that occurs in a hospital or long-term care facility?
Acquired
Nosocomial
Institutional
Staff
Nosocomial
Nosocomial infection refers to an infection that occurs in a hospital or long-term care facility.
- Handwashing, sterilization of equipment, and the wearing of protective clothing are all examples of:
Bactericidal techniques.
aseptic techniques.
infectant techniques.
immunization techniques.
aseptic techniques.
Handwashing, sterilization of equipment, and the wearing of protective clothing when caring for patients are all aseptic techniques.
- Which term indicates primary strategies that prevent infections transmitted through blood, body fluid, non-intact skin, and mucous membranes?
Isolation precautions
Infection precautions
Standard precautions
Microorganism precautions
Standard precautions
Standards Precautions are primary strategies to prevent infections transmitted through blood, body fluid, non-intact skin, and mucous membranes.
- Which term indicates drugs that kill microorganisms directly?
Bacteriocidal
Anticidal
Microbial
Streptocidal
Bacteriocidal
Bacteriocidal is a term used to describe drugs that kill microorganisms directly
- Which test can identify pathogens to determine the specific antibiotic that should be prescribed?
Wrights stain
Gram stain
Microbial stain
Giemsa stain
Gram stain
A gram stain is used to identify pathogens to determine the specific antibiotic that should be prescribed.
- Which procedure would assist the physician in choosing a drug that is effective against the pathogen?
Culture and sensitivity test
Antibiotic effectiveness test
Antimicrobial awareness test
Resistance and specificity test
Culture and sensitivity test
Culture and sensitivity is a laboratory technique for finding out which, if any, microbes are present, and which antibiotic will be effective against a specific pathogen. Broad -spectrum antibiotics are effective against a wide variety of pathogens.
- Why do physicians prefer to prescribe narrow-spectrum antibiotics?
Broad-spectrum antibiotics give more types of organisms a chance to develop resistance.
Broad-spectrum antibiotics are more expensive than narrow-spectrum antibiotics.
Narrow-spectrum antibiotics are less likely to cause hypersensitivity.
Narrow-spectrum antibiotics are faster acting than broad-spectrum antibiotics.
Broad-spectrum antibiotics give more types of organisms a chance to develop resistance.
Broad-spectrum antibiotics give more types of organisms a chance to develop resistance so physicians prefer to prescribe narrow-spectrum antibiotics.
- Which term indicates an altered state of reactivity in which the body reacts with an exaggerated immune response?
Hyper immunity
Hypersensitivity
Hyperreactivity
Hyper Antibiotics
Hypersensitivity
Hypersensitivity is an altered state of reactivity in which the body reacts with an exaggerated immune response.
- What term indicates a severe, possibly fatal systemic hypersensitivity reaction to a sensitizing agent—that is, a drug, food, or chemical?
Anabolic
Anaphylaxis
Anaerobic
Asepsis
Anaphylaxis
Anaphylaxis is a severe, possibly fatal systemic hypersensitivity reaction to a sensitizing agent such as a drug, food, or chemical.
- Which term describes a secondary infection that occurs while an antibiotic is destroying the first infection?
Hyperinfection
Massive infection
Superinfection
Broad infection
Superinfection
A superinfection is a secondary infection that occurs while the antibiotic is destroying the first infection.
- Which statement describes important information that patients must receive while on antibiotic therapy?
Stop taking the medication as soon as symptoms disappear to avoid a superinfection.
Take all of the medication to ensure that the drug does not fail.
Pathogens are usually destroyed with the first few doses; save extra doses for the future.
As soon as you are fever-free, the medication should be discontinued; the therapy has worked.
Take all of the medication to ensure that the drug does not fail.
Instruct patients to take all of the medication to ensure that the drug does not fail. An antimicrobial drug often fails because the dose is too small or the drug is taken for too brief a time. Never discontinue antimicrobial drugs until the patients have been fever-free and feeling well for 48 to 72 hours.
- Which antibiotic is the most effective and least toxic?
Tetracyclines
Penicillins
Macrolides
Aminoglycosides
Penicillins
Penicillin is the most effective antibiotic and the least toxic.
- Pathogens that secrete a substance called penicillinase:
resist penicillin decoys.
resist penicillin.
destroy penicillin decoys.
destroy penicillin.
resist penicillin.
Penicillinase is an enzyme produced by microbes that makes them resistant to penicillin.
- Patients should be educated to take antibiotic doses at the prescribed time to:
avoid hypersensitivity.
increase production of antibodies.
maintain therapeutic blood levels.
decrease the likelihood of superinfections.
maintain therapeutic blood levels.
Instruct patients to take doses at prescribed times to maintain therapeutic blood levels.
- In patients taking penicillin, rash, fever, or chills may indicate:
a superinfection.
drug resistance.
hypersensitivity.
the presence of penicillinase.
hypersensitivity
Hypersensitivity may occur if an individual is having an allergic reaction. Symptoms such as rash, fever, or chills may appear.
- Which antibiotic is often prescribed for patients who are allergic to penicillin?
Tetracyclines
Aminoglycosides
Cephalosporins
Quinolones
Cephalosporins
Cephalosporins are often prescribed for patients who are allergic to penicillin. They are broad-spectrum, semisynthetic drugs that are chemical modifications of the penicillin structure.
- Which should be avoided because they interact with cephalosporins and produce abdominal pain, nausea, vomiting, decreased blood pressure, rapid pulse, and sweating?
Milk and dairy products
Estrogen-containing contraceptives
Alcohol or alcohol-containing medications
Antacids
Alcohol or alcohol-containing medications
Alcohol or alcohol-containing medications should be avoided when taking cephalosporins because they can cause abdominal pain, nausea, vomiting, decreased blood pressure, rapid pulse, and sweating.
- Which antibiotics pose a greater risk for superinfection than other microbials?
Penicillins
Cephalosporins
Tetracyclines
Aminoglycosides
Tetracyclines
Tetracyclines pose a greater risk for superinfection than other microbials.
- Which should be avoided by patients taking tetracycline because of a resulting decrease in the absorption of the tetracyclines?
Alcohol
Antacids
Estrogen-containing contraceptives
Full glass of water
Antacids
Instruct patients to avoid taking antacids, iron products, or laxatives containing aluminum, calcium, or magnesium because they decrease the absorption of the tetracycline.
- Patients should be educated to avoid direct ultraviolet light and sunlight while taking tetracyclines because they can cause a rash due to:
hypersensitivity.
photosensitivity.
solar sensitivity.
radiosensitivity.
photosensitivity.
Instruct patients to avoid ultraviolet light and sunlight because tetracyclines can cause a rash due to photosensitivity.
- Zithromax, Biaxin, and erythromycin are all examples of:
penicillins.
cephalosporins.
tetracyclines.
macrolides.
macrolides.
Zithromax, Biaxin, and erythromycin are three macrolide antibiotics.
- Which are potent Bactericidal antibiotics that are generally used to treat only serious or life-threatening conditions?
Tetracyclines
Macrolides
Aminoglycosides
Sulfonamides
Aminoglycosides
Aminoglycosides are potent Bactericidal antibiotics that are generally used to treat only serious or life-threatening conditions.
- Which body systems may experience toxic effects from the administration of aminoglycosides?
Respiratory; nervous; and cardiovascular
Sensory; renal; and nervous
Integumentary; reproductive; and nervous
Digestive; nervous; and musculoskeletal
Sensory; renal; and nervous
The sensory, renal, and nervous systems are body systems that may experience toxic effects with aminoglycoside use. The aminoglycosidess may cause ringing or buzzing in the ears indicating a hearing loss. Instruct patients to report any change in the urinary pattern or blood in the urine indicating a toxic effect on the kidney. Monitor for dizziness, numbness, tingling, or twitching indicating a vestibular or nervous system toxicity.
- Patients taking sulfonamides such as Bactrim and Septra must be educated to:
drink at least 3 quarts of fluid per day.
avoid sunlight.
use additional methods of birth control.
take the medication with orange juice to increase absorption.
drink at least 3 quarts of fluid per day.
Instruct patients taking Bactrim and Septra to drink at least 3 quarts of fluid a day.
- Patients taking which type of antibiotics should be educated to avoid activities that require coordination and alertness because of the possibility of central nervous system symptoms?
Penicillins
Aminoglycosides
Macrolides
Quinolones
Quinolones
Instruct patients taking quinolones to avoid activities that require coordination and alertness because of the possibility of central nervous system symptoms.
- Mycoses are infections caused by:
bacteria.
viruses.
protozoa.
fungi.
fungi.
Mycoses are infections caused by fungi.
- Which term refers to a fungal infection of the nails?
Tinea corporis
Tines pedis
Tinea cruris
Tinea unguium
Tinea unguium
Tinea unguium is a fungal infection of the nails.
- Which statement correctly applies to the treatment of fungal infections?
Bacterial infections are harder to cure than fungal infections.
Antibiotics are more toxic to human cells than are antifungals.
Antifungal infections are harder to cure than bacterial infections.
Antibiotics are less effective than antifungals.
Antifungal infections are harder to cure than bacterial infections.
Antifungal infections are harder to treat than bacterial infections because fungal cell structure resembles the cell structure of human cells. As a result, drugs that are toxic to fungal cells may also be toxic to human cells.
- Which causes infections in warm, moist areas of the skin and the mucous membranes of the mouth and vagina?
Bacteria
Viruses
Yeast
Protozoa
Yeast
Yeast causes infections in warm, moist areas of the skin and the mucous membranes of the mouth and vagina. Yeast infections are caused by Candida albicans.
- Diflucan, Monistat, and Lotrimin are used to treat:
bacterial infections.
viral infections.
fungal infections.
rickettsial infections.
fungal infections.
Diflucan, Monistat, and Lotrimin are used to treat fungal infections.
- For an antiviral to be most effective, the drug must be given:
as soon as the patient presents with a fever.
after the culture and sensitivity identifies an effective antimicrobial.
before the disease begins.
on an empty stomach to increase absorption.
before the disease begins.
For an antiviral to be most effective, the drug must be given before the disease begins because a virus reaches its peak before clinical symptoms appear.
- Which forms after a vaccine is administered?
Superinfection
Resistance
Antibodies
Hypersensitivity
Antibodies
Antibodies form after a vaccine is administered.