QuestionSBA
QuestionChoice
This is the most likely causative organism in patients with poor dental hygiene or following a dental procedure.
10001480
d
*Streptococcus viridans *
QuestionChoice
This is the most likely causative organism in patients with adenomas/adenocarcinomas of the colon and IBD.
10001479
c
*Streptococcus bovis*
QuestionChoice
*Staphylococcus aureus* is the most common cause of infective endocarditis and is most associated with IV drug use (this patient has signs of IV drug use, indicated by her needle track marks).
10001477
a
*Staphylococcus aureus*
QuestionChoice
This is the most likely causative organism in patients who have been in contact with farm animals, cats and dogs.
10001481
e
*Coxiella burnetti*
QuestionChoice
This is the most likely causative organism in patients with prosthetic valves.
10001478
b
*Staphylococcus epidermis *
Concept
Chapter
2693
3710
Infective Endocarditis
Topic
134
Cardiology
12842
A 40-year-old female presents to A&E with chest pain. She has a heart rate of 110 bpm, respiratory rate of 22 breaths per minute, blood pressure of 110/70, temperature of 38.7 and oxygen saturations are 94% on room air.

On examination, she appears drowsy but is responsive to voice. There are needle track marks in her antecubital fossae. On auscultation of her chest, an ejection systolic murmur is heard.

She is diagnosed with infective endocarditis.

Which of the following pathogens is most likely to be the cause of her infective endocarditis?
a