Medical Microbiology Flashcards
(10 cards)
Which is the best statements about body flora
A) Abx selectively targets pathogens
B) The normal flora includes pathogens
C) Skin flora includes E Coli
D) S.aureus is carried by 10% of people
B
Select the correct statements about bacteria structure
(Multiple Ans)
A) LPS is an exotoxin
B) Endotoxin is found in outer cell membrane
C) Peptidoglycan is part of the cell wall
D) Streptococcus Pneumoniae capsule is component of the conjugated vaccine
C and D
Select the correct statements of staphylococci (Multiple Ans)
A) They are gram positive cocci in chains (Correct ans: In clusters)
B) S.aureus has coagulase
C) S.aueus sepsis mortality is 5-10% (Correct ans: 20%)
D) Debridement is a vital part of wound management
B and D
Select the correct statements about streptococci (Multiple Ans)
A) Is the GpB strep (GBS)
B) Is beta haemolytic
C) GAS causes impetigo
D) Necrotizing fasciitis response well to antibiotics
B and C
Select the correct statements about general wounds (Multiple Ans)
A) Bite infections are polymicrobial (mixed including anaerobes)
B) Cover for anaerobes when mucosae are involved
C) Drainage is often more effective than antibiotics
D) Pseudomonas Aeruginosa commonly causes community wound infections
A B and C
Select the best states about Respiratory Tract Infections (Multiple Ans)
A) Invasive pneumococcus disease is highest in infants
B) Asplenia is a risk factor for capsulated bacteria – vaccination before splenectomy
C) CXR tells you which is the likely organisms
D) Both PPSV23 and PV13 are commended when >65 yo
A B and D
Select the correct statements about Respiratory Pathogens
A) In Singapore we see about 1 new TB case/day
B) A positive AFB smear means MTBC present
C) A positive IGRA test diagnoses active TB disease
D) Mycoplasma pneumoniae is treated with penicillins
B
Selective the corrective statements about UTI (Multiple Ans)
A) Staphylococcus epidermidis causes UTI in sexually active young women
B) Ecoli is the most common causes of UTI
C) Catheters cause UTI – Get them out
D) Cystitis is best treated with only 7 days of oral abx
B and C
Select the best statements about meningitis and sepsis
(Multiple Ans)
A) Listeria affects pregnant women, neonates and the elderly
B) Listeria is susceptible to Ceftriaxone
C) Offer prophylaxis to contact of meningococcal cases
D) GBS and Ecoli are the commonest sepsis causes in neonates
A C and D
Select the correct statements about HAI (Multiple Ans)
A) HAI are more resistant to abx
B) HAI are preventable (Remove drains promptly, cleaning and prophylaxis abx to be given before procedures and surgery)
C) Most CNS in blood cultures are from lines (Mostly contaminants)
D) Klebsiella acquired as HAI is notoriously resistant
E) Handrub is an effective measure in CDiff outbreak (Spores cannot be destroyed by handrub)
A B C and D
