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Parasitology medhauz CDB > MAY CROW > Flashcards

MAY CROW Flashcards

1
Q

Exist only as molds

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

Aspergillus fumigatus

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2
Q

Drug of choice for Aspergillus

A

Amphoterecin B

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3
Q

nonseptate hyphae without walls and branches at right angles

-Rhino-orbital-cerebral infection with eschar formation

A

nonseptate hyphae without walls and branches at right angles

-Rhino-orbital-cerebral infection with eschar formation

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4
Q

Drug of choice for Pneumocystis jirovecii

A

Trimethoprim-Sulfamethoxazole

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5
Q

Honey Colored Crust Blisters
CATALASE +
COAGULASE +

A

Strep. pyogenes

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6
Q

CATALASE +
COAGULASE –
Novobiocin Sensitive
Gram Positive

A

Staphylococcus Epidermitis

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7
Q

Toxin associated with Staphylococcal Scalded Skin Syndrome which causes epidermal separation

A

Exfoliatin

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8
Q

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

A

Stratum corneum

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9
Q

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

A

Staphylococcus aureus

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10
Q

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

A

Most common cause of prosthetic valve endocarditis

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11
Q

Drug of choice for vancomycin-resistant Staph. aureus

A

Linezolid

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12
Q

Antistreptolysin 0: Pharyngitis

____________: Skin Infection

A

Anti –DNAse B

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13
Q

Impetigo contagiosa

A

Streptococcus pyogenes
What Skin layer is affected

Stratum corneum

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14
Q

Necrotizing Fascitis

Streptococcus pyogenes
What Toxin?

A

Exotoxin B

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15
Q

Erysipelas

A

Streptococcus pyogenes

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16
Q

Most common cause of sore throat

A

Streptococcus pyogenes

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17
Q

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

A

Dick Test

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18
Q

Most common cause of acute endocarditis

A

Staph. aureus

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19
Q

How about Subacute endocarditis

A

Strep. sanguis

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20
Q

Gastroenteritis kasi kumain ng salad

A

Staphycoccus aureus

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21
Q

Pneumatocele

A

Staphycoccus aureus

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22
Q

Osteomyelitis and Septic Arthritis

A

Staphycoccus aureus

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23
Q

Rheumatic feve is what type of hypersensitivity

A

Type II

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24
Q

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

A

35-37 weeks

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25
Q

SSSS: Stratus corneum
TEN:_____________

A

Stratus germinativum

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26
Q

Cellulitis

A

Streptococcus pyogenes

What Toxin?
Hyaluronidase

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27
Q

Hot-Tub Folliculitis

A

Pseudomonas aerugenosa

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28
Q

Most common cause of surgical wound infections

A

Staphylococcus aureus

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29
Q

Most common cause of bone infections

A

Staphylococcus aureus

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30
Q

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

A

Glycocalyx

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31
Q

Leading cause of bacterial sepsis and meningitis in newborns

A

GBS (S. agalactiae)

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32
Q

The major surface protein of GAS

A

M protein

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33
Q

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

A

4 hours

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34
Q

Otitis media, sinusitis, meningitis

A

S. pneumoniae

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35
Q

Scarlet Fever
Streptococcus pyogenes

What Toxin?

A

Erythrogenic toxin

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36
Q

Medussa head morphology

A

Bacillus anthracis

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37
Q

Box car shape

A

Anthracis

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38
Q

Reheated fried rice

A

Bacillus Ceres

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39
Q

Tennis rocket like

A

C. TetAni

40
Q

Bulging cans

A

C. Butilinum

41
Q

Gas-forming

A

C. Perfingrens

42
Q

Chinese characters

A

C. Diptheriae?

43
Q

Malignant Pustule

A

Bacillus anthracis

44
Q

DOC for cutaneous anthrax

A

Ciprofloxacin

45
Q

Mechanism of action of your cholera like toxin

A

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

46
Q

Mechanism of action sa Tetanus Toxin

A

Prevents release of GABA (stimulatory) which inhibits muscle relaxation

How about Botulinum toxin?
Blocks release of acetylcholine (stopping muscle contraction)

47
Q

Gas Gangrene

A

Clostridium perfringens

While Ecthyma Gangrenosum
Pseudomonas aeruginosa

48
Q

Associated with flare ups of ulcerative collitis

A

Clostridium difficile

49
Q

Strep pyogenes: Dick Test

C. diptheriae:______

A

Schicks TEST

50
Q

Transmission is through Ingestion of unpasteurized milk products

A

Listeria monocytogenes

51
Q

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

A

Listeria monocytogenes

52
Q

What compound is only found in Gram + bacteria

A

Teichoic Acid

53
Q

Honeymoon Cystitis

A

E. coli

54
Q

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

A

Alpha Toxin Lecithinase

55
Q

2 Obligate intracellular organism

A

Chlamydia and Ricketssia

56
Q

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

A

Klebsiella

57
Q

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

A

Pityriasis versicolor

58
Q

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?

A

Scarlet fever/ Strep. Pyogenes/ Group A

59
Q

Test used to detect toxigenicity of C. diptheriae

A

Modified Elek Test

60
Q

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

A

Stationary

61
Q

What is the most common cause of neonatal meningitis?

A

Strep. agalactiae

62
Q

Kidney bean diplococci

A

N. gonorrhea

63
Q

What are the 3 antibiotics in Thayer-Martin medium?

A

Vancomycin
Colistin/polymyxin
nystatin

64
Q

Most common cause of Urethritis

A

N. gonorrhea

65
Q

Most common cause of PID

A

N. gonorrhea

66
Q

Drug of choice for N. gonorrhea

A

ceftriaxone

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

Doxycycline

67
Q

Requires factor V and X for growth in agar

A

H. influenzae

68
Q

Agent for Epiglottitis and its radiologic finding

A

H. influenza/Thumb sign

69
Q

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

A

Epiglottitis: H. influenzae: thumb sign

70
Q

Drug of choice for Pertussis

A

Erythromycin

71
Q

Causes Pontiac fever

A

legionella

72
Q

Most common cause of bacterial gastroenteritis

A

Campylobacter jejuni

73
Q

Most commonly identified caus eof guillain barre syndrome

A

Campylobacter jejuni

74
Q

Swarming motility

A

Proteus mirabilis

75
Q

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

A

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

76
Q

Special tissue stain for leprosy bacilli

A

Fite-faraco

77
Q

H2S producing bacteria

A

Proteus and salmonella

78
Q

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

A

Alpha toxin/lecithinase/ Clostridium perfringens

79
Q

What is the basis for the lancefield classification of streptococci organisms

A

Cell wall carbohydrates

80
Q

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

A

Strep. pneumoniae

81
Q

In what stage does syphilitic meningitis can be found

A

Stage II

82
Q

Most common complication of measles

A

o. media

83
Q

Most common cause of osteomyelitis in patient with sickle cell anemia

A

Salmonella entertidiis

84
Q

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

A

Trichuriasis/ albendazole

85
Q

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

A

Pili

86
Q

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

A

Legionnaires

87
Q

What is the causative agent of granulomatosis infantiseptica?

A

L. monocytogenes

88
Q

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

A

P. malariae

89
Q

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

A

Varicella zoster

90
Q

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

A

H. influenzae

91
Q

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

A

Cerebellum (purkinje)

Hippocampus (pyramidal)

92
Q

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

A

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

93
Q

WARNING

Transformation-

A

direct uptake of naked donor DNA by the recipient cell

94
Q

phage mediated genetic recombination

A

Transduction

95
Q

transfer on one strand of DNA to the recipient

Gene conversion

A

Conjugation

96
Q

Most common cause of PID

A

N. gonorrhea

Parasitology medhauz CDB (5 decks)

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