MAY CROW Flashcards
Exist only as molds
- Septate hyphae that form V-shaped (dichotomous branches)
- form acute angles
Aspergillus fumigatus
Drug of choice for Aspergillus
Amphoterecin B
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
Drug of choice for Pneumocystis jirovecii
Trimethoprim-Sulfamethoxazole
Honey Colored Crust Blisters
CATALASE +
COAGULASE +
Strep. pyogenes
CATALASE +
COAGULASE –
Novobiocin Sensitive
Gram Positive
Staphylococcus Epidermitis
Toxin associated with Staphylococcal Scalded Skin Syndrome which causes epidermal separation
Exfoliatin
What layer of the skin does separation of epidermis occurs in SSSS
Stratum corneum
Tampon-using menstruating women or in patients with nasal packing fro epistaxis
Staphylococcus aureus
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
Drug of choice for vancomycin-resistant Staph. aureus
Linezolid
Antistreptolysin 0: Pharyngitis
____________: Skin Infection
Anti –DNAse B
Impetigo contagiosa
Streptococcus pyogenes
What Skin layer is affected
Stratum corneum
Necrotizing Fascitis
Streptococcus pyogenes
What Toxin?
Exotoxin B
Erysipelas
Streptococcus pyogenes
Most common cause of sore throat
Streptococcus pyogenes
Method of determining Susceptibility to scarlet fever by injection into the skin of 0.1 cubic cm. of scarlet fever toxin
Dick Test
Most common cause of acute endocarditis
Staph. aureus
How about Subacute endocarditis
Strep. sanguis
Gastroenteritis kasi kumain ng salad
Staphycoccus aureus
Pneumatocele
Staphycoccus aureus
Osteomyelitis and Septic Arthritis
Staphycoccus aureus
Rheumatic feve is what type of hypersensitivity
Type II
Weeks AOG in which all pregnant women should be screened for GBS colonization
35-37 weeks
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