Staphylococcal toxic shock syndrome, chancroid Flashcards

1
Q

TSS is a/an (common or uncommon?) but (mild or severe?) (acute or chronic ?) illness due to __________ produced by specific strains of _______________ or ____________

A

uncommon ; severe

acute ; exotoxins

Staphylococcus aureus ; Streptococcus pyogenes

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2
Q

TSS

It is a (common or rare?) , life-threatening complication of certain types of bacterial infections.

Often results from toxins produced by _________________ .

Can also be caused by toxins produced by ____________________ bacteria.

A

rare

staphylococcus aureus.

group A streptococcus bacteria.

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3
Q

Risk factors of TSS

Prolonged use of _______________ in menstruating women (most common)

Use of ____________ and vaginal _________ (by women)

_________ infections

A

highly absorbent tampons

contraceptive diaphragms; vaginal sponges

Wound infections

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4
Q

Staph aureus

Gram-_______ pathogen responsible for (superficial or deep?)-seated infections

(Frequent or Seldom?) colonizer of asymptomatic carriers

A

Gram-positive

superficial and deep-

Frequent

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5
Q

Staph aureus

Responsible for both ______ and _______ related diseases

Primary cause of _______- and _______ acquired __________ infections

A

pyogenic and toxin

community- and hospital

bloodstream infections

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6
Q

Staphylococcal toxic shock syndrome

Occasionally reported as ________________

Increased staphylococcal TSS cases occurred in (young or old?) women who used _________________ during menses.

Associated with a toxin called _____________________ secreted locally by toxigenic strains.

A

staphylococcal scarlet fever ; young

high-absorbency tampons

Toxic shock syndrome toxin 1 (TSST-1)

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7
Q

Staphylococcal aureus

__________ producer responsible for toxic shock syndrome and food poisoning

Most _______ species of the more than _____ Staphylococcus spp.

A

Superantigen

virulent

40

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8
Q

Pathogenesis of staphylococcal TSS

There are two clinical forms of TSS

_______ TSS and ____________ TSS

A

menstrual TSS and nonmenstrual TSS

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9
Q

________ TSS is associated with TSST-1

A

Menstrual

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10
Q

Menstrual Toxic shock Syndrome

Its expression requires specific conditions that include
(1) ___________ protein level;
(2) a relatively _______ pH (—— to ____)
(3) an _______ PCO2
(4) an _______ PO2
All four conditions are met when menstruation is combined with ________________________

A

elevated protein level;

neutral pH ; 6.5 to 8

elevated ; elevated

the use of high-absorbency tampons

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11
Q

Menstrual TSS

Clinical signs include

_____ fever, _____tension

hypo________, generalized _________

________ rash, followed by _________ after a few days.

A

high ; hypo

albuminemia ; nonpitting edema

morbilliform ; desquamation

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12
Q

Non-menstrual TSS

Associated with:

•_________
•Enterotoxins _____ and _____ (—————————-)

A

TSST-1

Enterotoxins SEB and SEC

staphylococcal enterotoxin B&C

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13
Q

Diagnosis

The diagnosis of TSS is both clinical and laboratory

The toxin is produced _______, and blood culture results may be _______.

The mortality rate of adequately treated staphylococcal TSS is approximately ____%,

A

locally ; negative.

5%,

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14
Q

Treatment of TSS

Elimination of the causative agent with _______ treatment

Appropriate _______ of affected tissues (if necessary)

Supportive care like _________
Immunotherapy (passive) such as ____________________could be effective.

A

antibiotic treatment

drainage ; intravenous fluid
Immunotherapy

intravenous immune globulin (IVIG)

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15
Q

Prevention of TSS

Avoid the use of ___________

Preventing staphylococcal colonization of _______ and ________.

Control cultures should be taken thereafter.

____________ with a __________ could be a potential.

A

hyperabsorbent tampons

wound and mucosa.

Active immunization ; TSST-1 vaccine

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16
Q

Chancroid

A sexually transmitted bacterial disease caused by infection with ______________

Also known as ‘______________’

(Acute or Chroic?) , (contagious or non-contagious?)

Features: pain___ ulcers, _________ of inguinal lymph nodes

A

Haemophilus ducreyi

‘soft chancre’

Acute ; contagious

painful ulcers, suppuration

17
Q

Haemophilus ducreyi

Gram ______ coccobacilli
Fastidious
Require _______ (_____ factor) for growth
Does not require _____ (____ factor)

A

Gram negative

hemin (X factor)

NAD (V factor)

18
Q

Laboratory diagnosis of Chancroid

Specimen: _________ from ________, ___ from bulbo

Microscopy: gram stain – G____CB

Culture: _________ agar (supplemented with isovitaleX) in 5%-10% CO2 atmosphere

Antigen detection Molecular technique: PCR

A

exudate ; egde of ulcers

pus ; GNCB

chocolate

19
Q

Treatment of chancroid

__________
Co-trimoxazole
Ciprofloxacin
_________
_________

A

Erythromycin Co-trimoxazole Ciprofloxacin Ceftriaxone Ofloxacin