Cardio

Question 1

Signs of IC

Answer 1

Oslers nodes
Janeway lesions
Splinter haemorrhages
Septic emboli
Roth spots on fundoscopy
Petechiae

Question 2

Blood cultures for IC

Answer 2

Taken and can be incubated aerobically or anaerobically for 7 days

Question 3

Blood cultures should be taken away from site on infection why?

Answer 3

Avoid contamination of sample - see if you really have systemic sepsis

Question 4

What will optochine disc do?

Answer 4

• Diff between strep pneumo and Beta haemolytic strep
• Strep pneumoniae - optochine sensitive
• Others are optochine resistive

Question 5

Tx for strep viridians in IC

Answer 5

IV Benzyplenicillin for 4-6 weeks plus or minus gentiamicin

Question 6

Main cause of IC

Answer 6

SA due to IVDU
Tx = flucocaxiclin - vancomycin if MRSA

Question 7

Septic emboli can cause what?

Answer 7

• Complications due to vegetations
• Vegetations - thrombus which occur in chamber of heart
• bacteria use thrombus to feed on and grow - fragment of and cause septic emboli that lodge in diff vessels

Question 8

Staph epidermis can also cause IC - Features

Answer 8

In immunocompromised

Question 9

Streptococci classification - lancefield - Beta haemolytic

Answer 9

A : Pyogenes - pharyngitis, cellulitis, glomerulonephritis
B: Agalacticae - neonatal meningitis + septicaemia
C: pharyngitis
D: Cellulitis

Question 10

Streptococci classification - lancefield - Alpha- haemolytic

Answer 10

Viridians group - dental abcesses, IE
S. pneumoniae - otitis meida, sinusitis, pmenumonia