NR 571 Midterm Exam (Latest Update
2026/ 2027) Complex Diagnosis &
Management in Acute Care Practicum
Questions and100% Correct Answers
[Grade A]– Chamberlain
What is modified Duke criteria used for? - correct answer Diagnosis of infective
endocarditis
Major Duke criteria - correct answer -two blood cultures positive for causative
organism out of at least three separate blood cultures drawn from 3 separate sites
within 1 hour
-blood cultures persistently positive for an organism from cultures drawn more than
12 hours apart
-echocardiogram positive for IE, documented by an oscillating intracardiac mass on a
valve or supporting structures, in the path of regurgitant jets, or on implanted
,material in the absence of an alternative anatomical explanation
-myocardial abscess
-development of partial dehiscence of a prosthetic valve
,-new-onset valvular regurgitation
Minor Duke Criteria - correct answer 1) > 100.4°F (38°C)
2) History of IVDU or predisposing heart condition
3) Vascular phenomena
4) Immunological phenomena
5) Positive BCx or serology not typical organism
Prophylactic infective endocarditis (IE) tx - correct answer vancomycin or
ampicillin/sulbactam (Unasyn)
aminoglycoside
rifampin - prosthetic valves
when IE is suspected outpatient you.... - correct answer refer patient to ED
, Inpatient treatment of IE - correct answer Consult ID and Cardiology
draw x3 Bld Cx over 1 hour before empiric ABX
x2 sets Blc Cx q1-2 days until negative
if hemodynamically stable, may wait to start ABX until Cx result and TEE done
Surgical indications in IE - correct answer valve perforation, dehiscence, fistula, or
rupture
large peri-valvular abscess
consider surgical intervention for IE - correct answer fungal infection
left-sided infection caused by gram negative
persistent infection with positive Bld Cx after 1 week of ABX
embolic events in first 2 weeks of ABX
infection with aggressing resistant bacteria
2026/ 2027) Complex Diagnosis &
Management in Acute Care Practicum
Questions and100% Correct Answers
[Grade A]– Chamberlain
What is modified Duke criteria used for? - correct answer Diagnosis of infective
endocarditis
Major Duke criteria - correct answer -two blood cultures positive for causative
organism out of at least three separate blood cultures drawn from 3 separate sites
within 1 hour
-blood cultures persistently positive for an organism from cultures drawn more than
12 hours apart
-echocardiogram positive for IE, documented by an oscillating intracardiac mass on a
valve or supporting structures, in the path of regurgitant jets, or on implanted
,material in the absence of an alternative anatomical explanation
-myocardial abscess
-development of partial dehiscence of a prosthetic valve
,-new-onset valvular regurgitation
Minor Duke Criteria - correct answer 1) > 100.4°F (38°C)
2) History of IVDU or predisposing heart condition
3) Vascular phenomena
4) Immunological phenomena
5) Positive BCx or serology not typical organism
Prophylactic infective endocarditis (IE) tx - correct answer vancomycin or
ampicillin/sulbactam (Unasyn)
aminoglycoside
rifampin - prosthetic valves
when IE is suspected outpatient you.... - correct answer refer patient to ED
, Inpatient treatment of IE - correct answer Consult ID and Cardiology
draw x3 Bld Cx over 1 hour before empiric ABX
x2 sets Blc Cx q1-2 days until negative
if hemodynamically stable, may wait to start ABX until Cx result and TEE done
Surgical indications in IE - correct answer valve perforation, dehiscence, fistula, or
rupture
large peri-valvular abscess
consider surgical intervention for IE - correct answer fungal infection
left-sided infection caused by gram negative
persistent infection with positive Bld Cx after 1 week of ABX
embolic events in first 2 weeks of ABX
infection with aggressing resistant bacteria
