Micp Lec Wk 7

What bacterium is characterized by grape-like clusters, golden-yellow colonies, tissue invasion, and the production of harmful enzymes and toxins?

• Streptococcus pneumoniae
• Escherichia coli
• Pseudomonas aeruginosa
• Staphylococcus aureus

What bacterium is commonly transmitted through direct contact with purulent lesions, the hands of healthcare workers, and fomites like bed linens?

• Staphylococcus aureus
• Streptococcus pyogenes
• Clostridium difficile
• Klebsiella pneumoniae

What Staphylococcus aureus infection is characterized by a pyogenic inflammation of the hair follicle, resulting in localized pain and rapid healing after pus drainage?

• Cellulitis
• Folliculitis
• Impetigo
• Scalded skin syndrome

What Staphylococcus aureus infection, which is an extension of folliculitis, presents as larger, painful nodules with underlying dead and necrotic tissue?

• Carbuncle
• Cellulitis
• Furuncle
• Erysipelas

What Staphylococcus aureus infection, characterized by a coalescence of furuncles extending into the subcutaneous tissue with multiple sinus tracts?

• Carbuncle
• Abscess
• Impetigo
• Scalded skin syndrome

What Staphylococcus aureus infection is specifically folliculitis occurring at the base of the eyelids?

• Chalazion
• Blepharitis
• Hordeolum
• Conjunctivitis

What clinical finding, caused by Staphylococcus aureus and sometimes S. pyogenes, common in young children, and characterized by flattened red spots progressing to pus-filled vesicles that rupture and form crusts?

• Cellulitis
• Impetigo
• Erysipelas
• Scalded skin syndrome

What Staphylococcus aureus clinical finding in newborns and young children presents with sudden perioral erythema, a positive Nikolsky sign, and is caused by exfoliative toxin, leading to skin displacement?

• Toxic shock syndrome
• SSSS
• Cellulitis
• Erysipelas

What bacterium is indicated by gram-positive cocci in microscopic examination and gray to golden-yellow colonies in culture?

• Streptococcus pneumoniae
• Escherichia coli
• Staphylococcus aureus
• Pseudomonas aeruginosa

What bacterium is treated with oxacillin (the only penicillin-derived antibiotic effective against it) and incision and drainage?

• Streptococcus pyogenes
• Staphylococcus aureus
• Escherichia coli
• Pseudomonas aeruginosa

What bacterium requires standard precautions for minor skin, burn, and wound infections, contact precautions for major infections like SSSS, and specific precautions for MRSA, including contact precautions when wounds cannot be contained?

• Staphylococcus aureus
• Streptococcus pneumoniae
• Escherichia coli
• Pseudomonas aeruginosa

What gram-positive bacteria, part of the skin's normal flora, is frequently linked to "stitch abscesses," UTIs, endocarditis, and infections in people with prosthetic equipment?

• Staphylococcus saprophyticus
• Streptococcus pneumoniae
• Enterococcus faecalis
• Staphylococcus epidermidis

What gram-positive cocci, belonging to group A beta-hemolytic streptococci, characterized by complete hemolysis of blood and M protein as its major virulence factor?

• Streptococcus pneumoniae
• Streptococcus pyogenes
• Staphylococcus aureus
• Enterococcus faecalis

What bacterium is primarily transmitted through direct contact with an infected person or through fomites?

• Staphylococcus epidermidis
• Escherichia coli
• Streptococcus pyogenes
• Pseudomonas aeruginosa

What clinical manifestation, associated with pain, erythema, warmth, lymphadenopathy, and systemic symptoms, is characterized by localized raised areas and caused by Streptococcus pyogenes?

• Erysipelas
• Tinea Corporis
• Psoriasis
• SSSS

What skin and subcutaneous tissue infection, often caused by Streptococcus pyogenes, is characterized by local inflammation and systemic signs?

• Contact Dermatitis
• Cellulitis
• Rosacea
• Urticaria

Acute glomerulonephritis and rheumatic fever are known complications of which bacterial infection?

• Streptococcus pyogenes
• Staphylococcus aureus
• Escherichia coli
• Pseudomonas aeruginosa

Which bacteria is diagnosed through microscopy showing gram-positive cocci, positive beta-hemolysis on blood agar culture, and susceptibility to bacitracin in an antibiotic test?

• Staphylococcus epidermidis
• Streptococcus pyogenes
• Enterococcus faecalis
• Streptococcus pneumoniae

Which bacteria is typically treated with penicillin (or erythromycin/cephalosporin for PCN allergies) and drainage/debridement of infected tissues?

• Bacillus anthracis
• Clostridium perfringens
• Streptococcus pyogenes
• Neisseria meningitidis

Which bacterial infection necessitates standard precautions for minor skin, burn, and wound infections, and contact or droplet precautions for major infections?

• Mycobacterium tuberculosis
• Klebsiella pneumoniae
• Salmonella enterica
• Streptococcus pyogenes

Its mode of transmission is colonization of previously injured skin

• Staphylococcus aureus
• Pseudomonas aeruginosa
• Escherichia coli
• Streptococcus pyogenes

What condition involving bone and cartilage inflammation of the foot is associated with Pseudomonas aeruginosa following a penetrating injury?

• Osteochondritis
• Cellulitis
• Septic arthritis
• Myositis

What ocular infection is a common finding of Pseudomonas aeruginosa in contact lens wearers, as well as endocarditis and osteomyelitis in IV drug users?

• Conjunctivitis
• Ocular Keratitis
• Uveitis
• Endophthalmitis

What infection, caused by Pseudomonas aeruginosa, is common in contact lens wearers (healthy individuals) and manifests as severe external otitis in diabetics, also called the swimmer's ear.

• Middle ear infection
• Inner ear infection
• Mastoiditis
• External Otitis

What bacterial species is diagnosed through Gram staining and culturing, revealing green-pigmented colonies with a sweet, grape-like odor?

• Klebsiella pneumoniae
• Pseudomonas aeruginosa
• Acinetobacter baumannii
• Stenotrophomonas maltophilia

What bacterial species is treated and prevented by avoiding contamination of hospital equipment, preventing cross-contamination, and using cephalosporins like cefepime?

• Pseudomonas aeruginosa
• Enterobacter cloacae
• Serratia marcescens
• Proteus mirabilis

What bacterial species is characterized as a gram-positive, anaerobic, rod-shaped bacilli that rarely produces endospores, produces alpha toxin leading to hemolysis and tissue destruction, and is found in feces-contaminated soil and water?

• Bacillus cereus
• Clostridium perfringens
• Clostridium difficile
• Clostridium tetani

What bacterial species is transmitted through skin colonization after physical trauma or surgery?

• Clostridium botulinum
• Clostridium sporogenes
• Clostridium perfringens
• Clostridium septicum

What bacterial species is diagnosed through microscopic detection of gram-positive bacilli in pairs and culture growth under anaerobic conditions?

• Listeria monocytogenes
• Clostridium perfringens
• Actinomyces israelii
• Propionibacterium acnes

What condition, also known as gas gangrene, is a life-threatening infection following trauma or surgery, characterized by massive tissue necrosis and gas formation?

• Clostridial Myonecrosis
• Necrotizing fasciitis
• Cellulitis
• Abscess

What bacterial species is characterized as a large, aerobic, encapsulated, gram-positive bacilli in long chains with a "bamboo fishing rod" or "Medusa head" appearance, whose endospores survive in soil for decades, and produces edema toxin and lethal toxin?

• Bacillus cereus
• Bacillus anthracis
• Clostridium botulinum
• Staphylococcus aureus

What is the medical term for the inflammation or infection of the cornea?

• Keratitis
• Scleritis
• Uveitis
• Retinitis

What is the medical term for the inflammation or infection involving both the conjunctiva and cornea?

• Sclerokeratitis
• Endophthalmitis
• Keratoconjunctivitis
• Blepharoconjunctivitis

Which type of skin lesion is flat and characterized by a change in the color of the affected skin?

• Papules
• Vesicles
• Macules
• Pustules

Which type of skin lesion is raised, solid, and less than 5 mm in diameter?

• Macules
• Vesicles
• Pustules
• Papules

Which type of skin lesion is rounded, raised, and more than 5 mm in diameter?

• Papules
• Nodules
• Vesicles
• Macules

Which type of skin lesion, also known as wheals or hives, presents as ring-like papules or plaques with a pinkish color?

• Nodules
• Vesicles
• Urticaria
• Macules

What are fluid-filled skin lesions less than 5 mm in diameter called?

• Vesicles
• Bullae
• Pustules
• Macules

What type of skin lesion is characterized by being filled with exudate?

• Vesicles
• Pustules
• Bullae
• Macules

What are skin lesions caused by bleeding into the skin called?

• Purpura
• Vesicles
• Pustules
• Bullae

What are crater-like skin lesions that extend into the deeper layers of the epidermis and dermis called?

• Macules
• Ulcers
• Vesicles
• Pustules

What is a necrotic ulcer covered with a blackened scab called?

• Pustule
• Vesicle
• Eschar
• Ecchymosis