Chapter 16
Cellulitis is a condition
caused by a fast-spreading infection in the dermis. that causes pain and redness. that can include the swelling of the area.
Lymphangitis, red lines leading away from an infected area, is associated with
cellulitis.
17. A child with pus-filled vesicles and scabs on his face, throat, and lower back most likely has __________, caused by a herpesvirus infection.
chickenpox
Which of the following is not a characteristic of Streptococcus
coagulase-positive
German measles infection during the first trimester of pregnancy may result in
congenital rubella syndrome
The ___________ is the thin membrane-like tissue that covers most of the eye.
cornea
Ringworm is caused by
cutaneous mycoses.
White, fuzzy colonies that produce conidiospores are cultured from the scrapings of a patient's scaly skin. This indicates ________.
cutaneous mycosis
Athlete's foot is called
tinea pedis.
Which of the following diseases can be treated effectively with antibiotics?
trachoma
All of the following are characteristics of the varicella-zoster virus
vesicular skin rash transmission via the respiratory route reactivation infections decades after initial infection latent infection in nerve cells
Which of the following is responsible for severe birth defects if contracted during pregnancy?
Rubella
A "teenage disease" called ____produces gram-positive rods isolated from pus-filled cysts on the face and upper back.
acne
All of the following diseases are caused by Staphylococcus aureus except ________.
acne
All of the following skin diseases are caused by viruses except which one?
acne
Microscopic examination of scrapings from a patient's scabies rash will show ________.
an animal
Place the following infections in order of increasing tissue involvement and severity: (1) septicemia, (2) folliculitis, (3) furuncle.
2-3-1
The most common treatments for tinea are either penicillin or cephalosporin.
FALSE
Thrush in children and vaginitis in adults are caused by the fungal genus
Candida
Which of the following is/are the most common cause/s of neonatal conjunctivitis
Chlamydia trachomatis Neisseria gonorrhoeae
One key technique for separating S. aureus from other species of Staphylococcus is the catalase test.
FALSE.
Each of the following is commonly found among the normal microbiota of the skin except ________.
Enterococcus spp.
Coagulase-negative strains of Staphylococcus are not associated with human disease.
FALSE
Measles are often fatal in nonvaccinated children.
FALSE
Ocular trachoma is a chronic infection of the epithelial cells of the skin.
FALSE
Shingles is associated with a prior infection of measles.
FALSE
Measles usually result in oral lesions called
Koplik's spots.
Which of the following are characteristics of Streptococcus?
M proteins beta-hemolytic cocci gram-positive
All of the following cause conjunctivitis
Neisseria Pseudomonas Chlamydia Haemophilus
All of the following diseases are caused by Staphylococcus aureus
Pimples toxic shock syndrome scalded skin syndrome
All of the following cause conjunctivitis except ________.
Propionibacterium
Microscopic examination of scrapings from a patient's rash shows gram-negative rods. The etiology is ________.
Pseudomonas
Which one of the following is not caused by a herpesvirus
Smallpox
Penicillin is the most effective treatment for ________.
Streptococcus
Fifth disease is associated with "slapped-face" rash
TRUE
Impetigo can be caused by Streptococcus pyogenes, Staphylococcus aureus, or both.
TRUE
Infestations with lice are called pediculosis.
TRUE
Keratitis is a more serious eye infection than conjunctivitis and is often caused by herpes simplex viruses
TRUE
Smallpox has been eliminated from global populations.
TRUE
The entire epidermis is replaced every 25 to 45 days with new cells.
TRUE
You isolate gram-positive cocci from a patient with impetigo. What do you need to do next to identify the etiology?
a coagulase test
All of the following are characteristics of the varicella-zoster virus except ________.
benign skin growths
A 6-year-old girl was taken to the physician for evaluation of a slowly growing bump on the back of her head. The bump was a raised, scaling lesion 4 cm in diameter. A fungal culture of material from the lesion was positive for fungus. The girl's disease was:
dermatomycosis.
Three main categories of microorganisms reside on the skin. This includes all of the following
diphtheroids. micrococci. yeasts.
Three main categories of microorganisms reside on the skin. This includes all of the following EXCEPT
enterics.
Place the following in their proper order from external to internal.
epidermis, dermis, subcutaneous layer, muscle layer
You microscopically examine scrapings from a case of Acanthamoeba keratitis. You should expect to see ________.
eukaryotic cells
You microscopically examine scrapings from a case of Acanthamoeba keratitis. You expect to see:
eukaryotic cells.
Maculopapular rashes have
flat to slightly raised colored bumps
The etiologic agent of fever blisters is
human herpesvirus 1.
Warts are caused by
human papillomavirus
Exotoxin-mediated diseases include
impetigo, SSSS, gas gangrene
Rubella (German measles, or "little red") is a relatively minor disease, but because ___________, children are usually vaccinated against it.
it causes birth defects
Which of the following pairs match
leading cause of blindness—Chlamydia chickenpox—shingles HSV-1—Herpetic whitlow
A 12-year-old boy had a fever, rash, headaches, sore throat, and cough. He also had a macular rash on his trunk, face, and arms. A throat culture was negative for Streptococcus pyogenes. The boy most likely had:
measles.
The integument is composed of all the following EXCEPT
muscle
Each of the following is an example of a defensive property of mucous membranes except ________.
presence of IgM
MRSA is a serious concern in health care settings because it is
resistant to first- and second-line antibiotics. acquired in hospitals. acquired in community settings
Which of the following viral infections has a high incidence of causing fetal congenital defects?
rubella
Measles is also known as
rubeola.
Which of the following substances, although inhibitory to some pathogens, actually provides nutrients for other microorganisms, particularly those that can cause acne?
sebum
Microorganisms that produce the enzyme keratinase can grow on ________.
skin and hair
The normal biota of the eye most resembles the normal biota of the
skin.
The integument is composed of all the following
skin. hair. nails.
Human herpesvirus, also known as HHV-3, are associated with all of the following diseases EXCEPT
smallpox.
Which of the following is not an eye infection?
sty
Hair follicles have scent glands and ___________ glands, which produce _________ that reduces microbial infestation
sweat; low pH, salty fluids