24. Cardiac Infections

Question 1

pt receives colonoscopy and has 2 polyps removed,
wt organism caused this?
associated condition?

Answer 1

Strep bovis

Endocarditis

Question 2

organism causing endocarditis and pericarditis?

tx?Haemophilus/actinobacillus?

Answer 2

Haemophilus/actinobacillus (aggregatibacter)

Third generation cephalosporins

Question 3

bacteria causing endocarditis in homeless?

Answer 3

Bartonella quintana

Question 4

bacteria causing endocarditis associated with scratch from a cat?

Answer 4

bartonella hensalae

Question 5

most common cause of infectious myocarditis?

Answer 5

Viruses (Coxsackie)

Question 6

pt presents with dyspnea and subsequent develops arrhythmias and then dies,
wt type of cardiac infection?
most likely cause?

Answer 6

myocarditis

virus (coxsackie B)

Question 7

pt presents with friction rub,
diagnosis?
most common cause?

Answer 7

pericarditis

idiopathic is most common

Question 8

EKG findings in pericarditis? wt lead

Answer 8

ST:T amplitude > 0.25 in V6

Question 9

most common cause of chronic effusion pericarditis?

Answer 9

TB

Question 10

Cardiac infection causing vegetations?

Answer 10

infectious endocarditis

Question 11

bact. associated w nosocomial endocarditis?

Answer 11

staphylococcus

Question 12

bact causing endocarditis and dental caries?

Answer 12

strep viridans mutans

Question 13

wt generally causes infectious endocarditis?

Answer 13

Bacteria

Question 14

wt heart infection can cause arrhythmias, HF, chest pain and death?

Answer 14

infectious mocarditis

Question 15

duke criteria required to diagnose infectious endocarditis?

Answer 15

2 major
one major, 3 minor
5 minor

Question 16

2 major criteria for duke endocarditis?

Answer 16

positive blood culture

evidence of endocardial involvement

Question 17

5 minor criteria for duke endocarditis?

Answer 17

fever > 100.4
immunologic phenomena (glomerulonephritis, osler, roth)
+ blood culture that doesnt meet major criteria
predisposing heart condition or IV drugs
vascular henomenon

Question 18

bact causing endocarditis post fist fight/ human bite?

Answer 18

eikenella corrodens

Question 19

when should prophylaxis for endocarditis be administered?

2 drugs?

Answer 19

previous endocarditis patients

amoxicillin 2 g
clindamycin 600 mg

Question 20

EKG changes in chagas myocarditis?

echo?

Answer 20

R BBB, L hemiblock

hypokinesis of L lung

Question 21

2 causes of myocarditis in HIV patients?

Answer 21

toxoplasmosis

Kaposi sarcome