Day7 Flashcards
T or F:
Specimens from anaerobic infections tend to produce gas.
True
T or F:
Specimens from anaerobic infections will grow in the bottom portion of the Thioglycollate media
True
Foul odor; fluoresce red under UV light; gas in specimen; Black discoloration of blood containing exudates
Anaerobic bacteria
What are some specimens unsuitable for anaerobic culture?(7)
- Throat swab
- NP swab
- Gingival swabs
- Expectorated sputum
- Voided urine, catheterized urine
- Vaginal swabs,cervival swabs, urethral swabs
- GI tract, stool(except Clostridia spp.)
What are some specimens that are suitable for anaerobic culture?(6)
- Transtracheal aspirate
- Body fluids
- deep wounds
- bone marrow
- suprapubic percutaneous bladder aspirates
- stool for toxin testing in Clostridial infections
How does Peptostreptococcus spp. cause infection?
By spreading to sterile areas of the body
What bacteria causes acne in teens?
Propionibacterium acnes
Terminal spores, drumstick,tennis racket appearance
Clostridium tetani
Spores that are difficult to detect, appear box car shaped, double zone of beta hemolysis (resembles a “target “); causative agent of gas gangrene.
Clostridium perfringens
Sub-terminal spores w swollen appearance; primary agent of botulism (food poisoning ) (dented cans)
Clostridium botulinum
T or F:
Anaerobic bacteria can be normal flora of the host.
T
T or F:
Specimens from anaerobic infections will grow aerobically.
False; anaerobically
T or F:
A vast majority of Microorganisms in the bowels and colon are anaerobic gram negative spore-forming rods.
F; non spore forming
T or F:
Bacillus spp. are expected when black discoloration of the blood containing exudates fluoresce red under UV light
False; Bacteriods spp.
T or F:
Loss of blood supply in any tissue may lead to local necrosis, establishing a perfect environment for aerobic infections.
False; anaerobic infections
