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Therapeutics ID Maynard
Exam 2 Surgical Prophylaxis
20
Chemistry
Graduate
01/23/2010

Additional Chemistry Flashcards

 


 

Cards

Term
Patient Associated Risk Factors for Surgical Infections
Definition
  • Age
  • Mulnutrition
  • Obesity
  • DM
  • Smoking
  • Coexisting Infections
  • Bacterial Colonization
  • Immunosuppression
  • Prolonged Post-Op Stay
Term
Operation Associated Risk Factors for Surgical Infections
Definition
  • Length of surgical scrub
  • Skin antisepsis
  • Preoperative shaving
  • Preoperative skin prep
  • Length of operation
  • Antimicrobial prophylaxis
  • Operating theatre ventilation
  • Inadequate instrument sterilization
  • Foreign material in surgical site
  • Surgical drains
  • Surgical technique
  • Post Op Hypothermia
Term
Major Pathogens Associated with Surgical Site Infections
Definition
  • Staph. aureus
  • Coagulase-Negative Staph
  • Enterococcus
  • Escherichia coli
  • Pseudomonas aeruginosa
Term
Resistance associated with:
Definition
  • Hospital personnel transmission
  • Broad-spectrum antibiotic use
  • Extended duration of antibiotic use
  • Possible increase with prophylaxis
Term
Class of antibiotcs not recommended for treating surgical site infections
Definition

3rd Generation Cephalosporins

  • Less G+ activity
  • Poor anaerobic activity
  • Other unnecessary coverage (organisms not encountered in surgical procedures)
  • Increased cost
Term
Pathogens associated with Colorectal Surgery
Definition

Enteric G- bacilli

Anaerobes

Enterococci

Term
Prophylactic Antibiotics for Colorectal surgery
Definition

PO:

Neomycin + Erythromycin or Metronidazole

 

IV:

Cefotetan or Cefoxitin

Term
Prophylactic Antibiotics for Appendectomy
Definition

IV:

Cefotetan or Cefoxitin

Term
Pathogens associated with Appendectomy
Definition

Enteric G- bacilli

Anaerobes

Enterococci

 

Term
Pathogens associated with Cariothoracic Surgery
Definition

Staph. aureus

Staph. epidermidis

Term
Prophylactic Antibiotics for Cardiothoracic Surgery
Definition

Cefazolin

 

Alt:

Cefuroxime

Vancomycin

Term
Pathogens Associated with Vascular Surgery
Definition

Staph. aureus

Staph. epidermidis

G- bacilli

Term
Prophylactic Antibiotics for vascular surgery
Definition

Cefazolin

 

Alt:

 

Vancomycin + Ciprofloxacin OR gentamicin OR Aztreonam (if G- is a large concern, ie, groin incisions)

Term
Pathogens associated with Orthopedic Surgery
Definition

Staph. aureus

Staph. epidermidis

Term
Prophylactic Antibiotics for Orthopedic Surgery
Definition

Cefazolin

 

Alt:

 

Vancomycin

Term
Initial dosing for most antibiotics
Definition
Given after anesthesia and procedure is started within 15 minutes
Term
Initial dosing for Vancomycin
Definition

Initiate infusion 1-2 hrs prior to incision

 

Need time for drug to get to tissues -- poor penetration into tissues

Infusing vanco too fast would cause "red man syndrome"

Term
When do you redose for antibiotic prophylaxis?
Definition

General rule is you redose 1-2 x the half life of the drug

  • If surgery is longer than 4 hours
  • If there is major blood loss

 

Term
What is the duration of prophylactic antibiotic therapy?
Definition
  • Only the single pre-op dose is necessary
  • NO more than 24 hrs post-op
Term
Non-Pharmacological Treatment
Definition
  • Normothermia
  • Aggressive Glucose Control
  • Fluid Resuscitation

Supplemental O2 is debatable

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