Infectious 3 Flashcards

1
Q

What to do for patients with positive serology and negative PCR for HCV?

A

repeat serology–If positive–indicate the previous infection

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2
Q

Positive serology and negative PCR?

A

Recent infection

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3
Q

Right side IE complication?

A

Rare peripheral symptom
Common septic PE
HF is not common
Often lack audible murmur

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4
Q

Cause of post influenza bacterial pnumonia?

A

S, Pneumonia

CA-MRSA

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5
Q

S, Pneumonia?

A

MCC(especially age >65)
Rare in young
Lobar pattern

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6
Q

CA-MRSA?

A

MCC in young adult
Rapid,diffiuze necrotising pnumonia
Multiple cavitary lesions, pulmonary infiltrate
Leukopenia

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7
Q

Other screening to do inpatient with gonococcal urethritis?

A

HIV
HBV
Syphilis serology(But if positive no need for additional Tx, ceftriaxone treat it)

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8
Q

Hydatid cyst of the liver?

A

Unilocular(Echinococcus granulosus)
Multilocular(Echinococcus Multilocularis)
Usually asymptomatic
can involve any organ
Contact with a dog is a risk(it is a carrier)
Eggshell calcification cyst in the liver is diagnostic
Albendazole is the treatment with surgery
Is spilled during surgery it can cause anaphylaxis

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9
Q

What to do inpatient with active CMV infection(e.g colitis)

A

Retinal examination

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10
Q

How to diagnose CMG organ(GI and other ) infection?

A

Tissue biopsy

viremia not diagnostic

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11
Q

C.trachomatis infection?

A

Treat with azithromycin
Partner with contact in last 60 days should be screened and treated
Reinfection is common

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12
Q

The HACEK group of bacteria?

A

1) Include (Haemophilus species, Aggregatibacter species, Cardiobacterium hominis, Eikenella corrodens, and Kingella species)
2) Are a small, heterogeneous group of fastidious, gram-negative bacteria
3) Frequently colonize the oropharynx and
4) Have long been recognized as a cause of infective endocarditis(<3 %)

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13
Q

Coccidiosis?

A
Inhalation of arthroconidia
SW USA(Arizona,California)
Pneumonia
Artheralgia
Erythema nodusum
Erythema multiform
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14
Q

diagnosis?

A

serology

Culture

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15
Q

Managment?

A

In healthy–Just do a follow-up
Inpatient with underlying disease–Dissemination(bone, CNS and skin is common)–Need antifungal(ketoconazole,fluconazole)

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16
Q

Cutaneous larva migrant cause?

A

hookworm larva
Human is incidental host
Contact with the ground by barefoot is the risk
from dog or cat

17
Q

CM?

A

Primarily affect LE
Cutaneous(deep involvement is rare)
erythematous pruritic papule at the site of entry
Intensely pruritic, migrating serpiginous reddish-brown track

18
Q

Diagnosis?

A

Clinical

eosinophil is normal

19
Q

Managment?

A

Ivermectin

20
Q

Risk for legionella pnumonia?

A

Water contact within last 2 week

21
Q

CM?

A
Fever >39
Relative bradycardia
Neurologic symptom(confusion)
GI symptom (Diarrhea)
Unresponsive to BL and AG antibiotic
22
Q

Laboratory?

A

Hyponatremia
Hepatic dysfunction
Hematuria and protinuria
sputum gram stain show many or small microorganisms

23
Q

Diagnosis?

A

Urine Ag test

Culture(charcoal yeast extract)

24
Q

Managment?

A

Macrolide/FQ

25
Q

Prophylaxis for travelers?

A

HAV vacine
Typhoid vaccine
atovaquone-proguanil, doxycycline, or mefloquine > 2 weeks prior, stay and 4 weeks after return

26
Q

mefloquine S/E?

A

Neuropsychiatric (anxiety, depression and restlessness)

27
Q

EHEC?

A
MCC of bloody diarrhea without fever
Shiga toxin(pathogenesis and diagnosis)
Caused by eating uncooked beef
Tx--Supportive
AB- Not recomended B/C of it increase risk of HUS
28
Q

Bloody diarrhea with fever etiology?

A

C.Jujuni
Nontyphidal salmonella
L.Monocytinogen

29
Q

B.Cerus diarrhea?

A

Reheated rice
Due to preformed enterotoxine
Resolve within 48 Hr
Vomiting more predominate(1-6hr)

30
Q

epidemiology of chikungunya fever?

A

T & ST parts of C/S America Asia and Africa

Transmited by Aedes mosquito(also D & Z)

31
Q

CM?

A
IP(3-7) day
Flu-like symptoms
Sever polyarthralgia(usually present)
Maculopapular rash
LDP
Conjunctivitis
Low PLT and Lymphopenia
Elevated TA
32
Q

Managment?

A

supportive

methotrexate if develop chronic arthralgia(>50 % develop it)

33
Q

Secondary syphilis?

A
Centrifugal rash involves palm and sole
LDP(epitrochlear is pathognomic)
C.Latum(gray genital papule)
Oral lesion'
hepatitis
34
Q

Differential?

A
RMSF(centripetal rash)
Endemic Typus(spares hand and palm)
35
Q

Treatment?

A

1 dose penicillin

36
Q

the first thing to do inpatient suspected of IE?

A

Blood sample from 3 different puncture site

37
Q

What to do in patients Negativ TST?

A

No additional test

But in case of a positive repeat test

38
Q

Meningiococus for HIV aptient?

A

vaccinate and give every 5 years as a booster

39
Q

etiology of acute epididymitis?

A

AGE <35(N.G and C.T), More STI related

Age >35(choliform bacteria like E.Coli),More Obstraction related