MAY CROW Flashcards by Karen Calang

Exist only as molds

Septate hyphae that form V-shaped (dichotomous branches)
form acute angles

Aspergillus fumigatus

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Drug of choice for Aspergillus

Amphoterecin B

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nonseptate hyphae without walls and branches at right angles

-Rhino-orbital-cerebral infection with eschar formation

nonseptate hyphae without walls and branches at right angles

-Rhino-orbital-cerebral infection with eschar formation

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Drug of choice for Pneumocystis jirovecii

Trimethoprim-Sulfamethoxazole

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Honey Colored Crust Blisters
CATALASE +
COAGULASE +

Strep. pyogenes

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CATALASE +
COAGULASE –
Novobiocin Sensitive
Gram Positive

Staphylococcus Epidermitis

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Toxin associated with Staphylococcal Scalded Skin Syndrome which causes epidermal separation

Exfoliatin

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What layer of the skin does separation of epidermis occurs in SSSS

Stratum corneum

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Tampon-using menstruating women or in patients with nasal packing fro epistaxis

Staphylococcus aureus

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Staphylococcus epidermis
— septic arthritis in prosthetic joints
–ventriculoperitoneal shunt infections
How about your native valve endocarditis?
Strep. sanguis

Most common cause of prosthetic valve endocarditis

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Drug of choice for vancomycin-resistant Staph. aureus

Linezolid

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Antistreptolysin 0: Pharyngitis

____________: Skin Infection

Anti –DNAse B

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Impetigo contagiosa

Streptococcus pyogenes
What Skin layer is affected

Stratum corneum

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Necrotizing Fascitis

Streptococcus pyogenes
What Toxin?

Exotoxin B

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Erysipelas

Streptococcus pyogenes

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Most common cause of sore throat

Streptococcus pyogenes

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Method of determining Susceptibility to scarlet fever by injection into the skin of 0.1 cubic cm. of scarlet fever toxin

Dick Test

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Most common cause of acute endocarditis

Staph. aureus

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How about Subacute endocarditis

Strep. sanguis

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Gastroenteritis kasi kumain ng salad

Staphycoccus aureus

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Pneumatocele

Staphycoccus aureus

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Osteomyelitis and Septic Arthritis

Staphycoccus aureus

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Rheumatic feve is what type of hypersensitivity

Type II

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Weeks AOG in which all pregnant women should be screened for GBS colonization

35-37 weeks

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SSSS: Stratus corneum TEN:_____________

Stratus germinativum

Cellulitis

Streptococcus pyogenes What Toxin? Hyaluronidase

Hot-Tub Folliculitis

Pseudomonas aerugenosa

Most common cause of surgical wound infections

Staphylococcus aureus

Most common cause of bone infections

Staphylococcus aureus

component of Stap. epidermitis which causes prosthetic device infection that enables it to form biofilms on device surfaces? (adherence)

Glycocalyx

Leading cause of bacterial sepsis and meningitis in newborns

GBS (S. agalactiae)

The major surface protein of GAS

M protein

For GBS suspected pregnant women, chemoprophylaxis of ampicillin should be given ____ hours prior to delivery

4 hours

Otitis media, sinusitis, meningitis

S. pneumoniae

Scarlet Fever Streptococcus pyogenes What Toxin?

Erythrogenic toxin

Medussa head morphology

Bacillus anthracis

Box car shape

Anthracis

Reheated fried rice

Bacillus Ceres

Tennis rocket like

C. TetAni

Bulging cans

C. Butilinum

Gas-forming

C. Perfingrens

Chinese characters

C. Diptheriae?

Malignant Pustule

Bacillus anthracis

DOC for cutaneous anthrax

Ciprofloxacin

Mechanism of action of your cholera like toxin

ADP ribosylation ------ inc. CAMP-----efflux of Chloride--- secretion of H20, Na, K, HCO3----- fluid loss (dehydration

Mechanism of action sa Tetanus Toxin

Prevents release of GABA (stimulatory) which inhibits muscle relaxation How about Botulinum toxin? Blocks release of acetylcholine (stopping muscle contraction)

Gas Gangrene

Clostridium perfringens While Ecthyma Gangrenosum Pseudomonas aeruginosa

Associated with flare ups of ulcerative collitis

Clostridium difficile

Strep pyogenes: Dick Test | C. diptheriae:______

Schicks TEST

Transmission is through Ingestion of unpasteurized milk products

Listeria monocytogenes

Newborn complicated with sepsis, multiorgan abscesses, and disseminated granulomas (Granulomatosis infantiseptica) is caused by?

Listeria monocytogenes

What compound is only found in Gram + bacteria

Teichoic Acid

Honeymoon Cystitis

E. coli

An organism produces hemolysis on egg yolk agar. This is due to what toxin

Alpha Toxin Lecithinase

2 Obligate intracellular organism

Chlamydia and Ricketssia

Alcoholic with cough and mucoid bloody sputum. Gram stain reveals large capsule.

Klebsiella

Dx for a patient with painless patches over his chest and back with noted minimal scaling

Pityriasis versicolor

7 year old - sore throat, diffuse finely popular erythematous rash that feels like a sandpaper, strawberry tongue - hyperpigmentation of armpits What is the Dx and Lancefield classification of the Etiologic agent?

Scarlet fever/ Strep. Pyogenes/ Group A

Test used to detect toxigenicity of C. diptheriae

Modified Elek Test

Period in the bacterial growth cure where there is accumulation of toxic products and exhaustion of nutrients

Stationary

What is the most common cause of neonatal meningitis?

Strep. agalactiae

Kidney bean diplococci

N. gonorrhea

What are the 3 antibiotics in Thayer-Martin medium?

Vancomycin Colistin/polymyxin nystatin

Most common cause of Urethritis

N. gonorrhea

Most common cause of PID

N. gonorrhea

Drug of choice for N. gonorrhea

ceftriaxone What is added if you supect co-infection with C. trachomatis Doxycycline

Requires factor V and X for growth in agar

H. influenzae

Agent for Epiglottitis and its radiologic finding

H. influenza/Thumb sign

WARNING CROUP/Barking cough: Parainfluenzae VIRURS NA/ Steeple sign Whooping cough: Bordetella Pertussis (WhoPER)

Epiglottitis: H. influenzae: thumb sign

Drug of choice for Pertussis

Erythromycin

Causes Pontiac fever

legionella

Most common cause of bacterial gastroenteritis

Campylobacter jejuni

Most commonly identified caus eof guillain barre syndrome

Campylobacter jejuni

Swarming motility

Proteus mirabilis

Suspected of 1st week infection of typhoid fever, the best specimen too be utilized for culture is _____

1st week: Blood 2nd week: Stool 3rd week: Bone marrow

Special tissue stain for leprosy bacilli

Fite-faraco

H2S producing bacteria

Proteus and salmonella

An organism produces a double hemolysis on egg yolk agar. This is due to what toxin?

Alpha toxin/lecithinase/ Clostridium perfringens

What is the basis for the lancefield classification of streptococci organisms

Cell wall carbohydrates

sputum characteristic of bloody and rusty. What is the etiologic agent?

Strep. pneumoniae

In what stage does syphilitic meningitis can be found

Stage II

Most common complication of measles

o. media

Most common cause of osteomyelitis in patient with sickle cell anemia

Salmonella entertidiis

rectal prolapse with fecalysis finding of barrel shaped egg with polar plugs at the polar ends. What is the drug of choice

Trichuriasis/ albendazole

recurrent urinary tract infections. What is the virulence factor of the most common etiologic agent to produce the disease?

Pili

myalgia, abdominal pain, diarrhea and VS (BP: 140/90), HR:64, RR: 28, T:40). What is the most likely etiologic agent?

Legionnaires

What is the causative agent of granulomatosis infantiseptica?

L. monocytogenes

What is the causative agent of malaria that has been implicated to cause nephrotic syndrome?

P. malariae

Drew drop on a rose petal lesion is cause by what virus?

Varicella zoster

Symptoms include fever, hoarseness, drooling with a preference for tripod position. Etiologic agent?

H. influenzae

Negri bodies, common pathognomonic lesion in rabies. Commonly seen in what structure in the CNS

Cerebellum (purkinje) | Hippocampus (pyramidal)

In what phase of the microbial growth curve wherein the growth rate is constant?

Lag-zero rate Exponential-constant Maximum stationary- zero Decline-negative rate

WARNING | Transformation-

direct uptake of naked donor DNA by the recipient cell

phage mediated genetic recombination

Transduction

transfer on one strand of DNA to the recipient | Gene conversion

Conjugation

Most common cause of PID

N. gonorrhea