Gram positive bacteria: Difference between revisions

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####Most common cause of catheter-related bacteremia<ref>Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp</ref>
####Most common cause of catheter-related bacteremia<ref>Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp</ref>
####Most common skin contaminant found in blood cultures<ref>Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp</ref>
####Most common skin contaminant found in blood cultures<ref>Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp</ref>
###[[Staph saprophyticus]]: [[UTI]]s in women
###[[Staph saprophyticus]]
###[[Staph lugdunensis]]: [[endocarditis]], [[meningitis]], and [[Skin and Soft Tissue Infections]]  
####[[UTI]]s in women
###[[Staph haemolyticus]]: [[endocarditis]], [[meningitis]]  
###[[Staph lugdunensis]]
####[[Endocarditis]], [[meningitis]], and [[Skin and Soft Tissue Infections]]  
###[[Staph haemolyticus]]
####[[Endocarditis]], [[meningitis]]  
#Pairs/chains ([[Strep Species]])
#Pairs/chains ([[Strep Species]])
##catalase -
##catalase -

Revision as of 06:02, 22 April 2014

Cocci

  1. Clusters (Staph Species)
    1. Coagulase Positive: Staph aureus
      1. Always consider a blood culture positive for Staphylococcus aureus to be true bacteremia (and not a contaminant) due to the danger of delaying treatment[1]
    2. Coagulase Negative:
      1. Staph epidermidis
        1. Most common cause of catheter-related bacteremia[2]
        2. Most common skin contaminant found in blood cultures[3]
      2. Staph saprophyticus
        1. UTIs in women
      3. Staph lugdunensis
        1. Endocarditis, meningitis, and Skin and Soft Tissue Infections
      4. Staph haemolyticus
        1. Endocarditis, meningitis
  2. Pairs/chains (Strep Species)
    1. catalase -

Rods (Bacilli)

Organism
Cult Morphology

Listeria monocytogenes

Small

Aero
 tumbling
Diphtheroids
 Small Anaero
 pallisades
Actinomyces
 Small Anaero
 Branching
Propionibac
 Small Anaero
 clumps/pleo
Lactobacillus
 Variable Both
 may chain
Clostridium
 Large Anaero
 Spores
Bacillus Large Aero Spores

Clinical Identification Chart

Gram-Positive Classification.png

Table Overview

Gram Positives
Cocci
Clusters
Pairs/Chains
Other
Rods
Gram Negatives
Cocci
Rods
Lactose Fermenters
Lactose Non-Fermenters
Other
Rods/Cocci
Anaerobes

See Also

Source

  1. ↑ Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp
  2. ↑ Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp
  3. ↑ Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp
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