Week 13 - Topic 2: Surgical Site Infections Flashcards

1
Q

What is the most common healthcare associated infection?

A

Surgical site infection (SSI)

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2
Q

Where is a superficial incisional SSI?

A

Skin + subcutaneous tissue

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3
Q

Where is a deep incisional SSI?

A

Deep soft tissue (muscle and fascia)

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4
Q

Where is an organ/space SSI?

A

In the organ space

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5
Q

The majority of interventions that reduce SSI are implemented:

1) Before and during surgery
2) After surgery
3) Both

A

Answer: 1) before and during surgery

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6
Q

Why should someone stop smoking weeks before surgery?

A

To reduce pulmonary complications

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7
Q

What should be done prior to surgery?

A
  • Nutrition: assess for malnutrition and albumin levels
  • Admission prior to surgery should be minimized
  • Identify and treat infections prior to surgery
  • Maintain glucose control before/during/after surgery
  • Screen for nasal carriage of Staph aureus and decolonize known carriers before implant procedures
  • Remove hair with clippers only if it interferes with surgery as close to the time of surgery
  • Shower PT with CHG or CHG wipes
  • Hand hygiene with CHG
  • Time out to validate right PT, surgery, site
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8
Q

With regards to nutrition, who is at risk for SSI?

A
  • BMI < 19
  • Unintentional weight loss > 8 lbs in 3 months
  • Poor appetite (less than 2 meals/day)
  • Dysphagic
  • Vomiting
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9
Q

Why should admission prior to surgery be minimized?

A

To reduce the risk of acquiring MDRO or other infections

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10
Q

Why should you treat an infection before surgery?

A

To reduce the possibility of seeding the operative site from the remote infection

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11
Q

Who should have glucose control being done?

A
  • Diabetics
  • > 45 y.o.
  • BMI >= 30
  • Undergoing high risk surgery (ex: cardiac)
  • BG > 8-10 mmol/L or > 150-180 mg/dL
  • Abnormalities of monocyte and polymorphonuclear neutrophil function
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12
Q

Your PT has a fasting blood glucose level of > 8-10 mmol/L or > 150-180 mg/dL prior to surgery. What do you do?

A

Suggest use of insulin drip during OR or immediately after

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13
Q

How do you decolonize nasal carriers of Staph aureus?

A
  • CGH skin prep and nasal mupirocin
  • MRSA: vancomycin
  • Non-MRSA: cefazolin
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14
Q

How do you do antiseptic skin prep?

A
  • Shower with CHG detergent or paint CHG solution minimally the night before and the morning of surgery
  • CHG wipes applied consecutively for 3-5 days before surgery
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15
Q

How should the team scrub for surgery?

A
–Maintain short nails ( < 3mm)
–Clean under fingernails
–Scrub from hands to elbows using CHG
–Time scrub 2-5 minutes (or according to manufacturer's directions)
–Hold hands up after surgical scrub
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16
Q

What is the dress code for surgery?

A

–Completely cover hair (no fringes, sideburns, facial hair, necklines)
–Securely tied mask (covering nose and mouth)
–No visible jewellery (confined under scrubs)
–Sterile gloves
–Protective eyewear
–Clean dedicated OR shoes

17
Q

How do you prep the skin right before surgery?

A
  • 2%CGH with 70% alcohol
  • Area prepped must be big enough to extend incision
  • Prep high bioburden areas separately (umbilicus, axilla, perianal area, colostomy sites)
  • Allow solution to dry before draping the PT
  • Prevent the prep solution from pooling beneath the PT
18
Q

What must you validate before the cut?

A
  • Right PT
  • Right surgery
  • Right site
  • Intra-op abx given
  • Glucose levels are adequate
  • Body T° is appropriate
19
Q

When are antimicrobial prophylaxis given?

A

Vancomycin: 120 min before incision
Cefazolin: 30-60 min before incision

Peak is at cut

20
Q

Why are abx important for grafts or implants?

A

To prevent organisms from attaching to the device (biofilm)

21
Q

True or False: Abx should be discontinued 24h after surgery.

A

True

22
Q

What are some (3) post-operative measures?

A

1) Changed soaked initial dressing after 24h
- Monitor for signs and sx of infection
- Use aseptic clean NTT and sterile equipment when changing dressings

23
Q

What are some preventable risks factors for wound healing?

A
  • Poor nutritional status
  • Excessive blood loss
  • Poor hygiene and substance use
  • Poor mobility and physical activity
  • Medications that interfere with wound healing (antineoplastic, systemic corticosteroids, anticoagulants)
24
Q

What should you teach your pt to prevent SSI?

A

1) Wound dressing technique
2) Monitor for dehiscence, bruising, pain, inflammation, exudate, skin breakdown
3) Avoir heavy lifting for 6 weeks
4) Support incision when changing position, coughing, sneezing
5) Avoid baths for 48h –> prefer showers
6) Increase protein and fluid intake