CNOR CNOR - Certification Wound Management and Tissue Handling 1 — Questions and Answers
Question 1: Which wound classification describes a surgical incision made under ideal conditions with no inflammation encountered?
- Class II – Clean-Contaminated
- Class I – Clean (Correct answer)
- Class III – Contaminated
- Class IV – Dirty/Infected
Correct answer: Class I – Clean
Class I (Clean) wounds are uninfected operative wounds with no break in sterile technique and no entry into the respiratory, alimentary, or genitourinary tracts.
Question 2: A Class II wound classification (Clean-Contaminated) applies when:
- An acute non-purulent inflammation is encountered
- The respiratory, alimentary, or genitourinary tract is entered under controlled conditions (Correct answer)
- A perforated viscus is present
- No sterile technique is used
Correct answer: The respiratory, alimentary, or genitourinary tract is entered under controlled conditions
Class II includes procedures where a hollow organ is entered in a controlled manner without unusual contamination, such as an elective bowel resection.
Question 3: The primary purpose of wound irrigation during surgery is to:
- Increase the risk of dehiscence
- Reduce bacterial load and remove debris from the wound (Correct answer)
- Replace the need for surgical drains
- Cool the electrosurgical site
Correct answer: Reduce bacterial load and remove debris from the wound
Wound irrigation dilutes and removes bacteria, necrotic tissue, and foreign material, reducing the risk of surgical site infection (SSI).
Question 4: Which suture characteristic describes sutures that are absorbed by the body over time through hydrolysis or enzymatic degradation?
- Nonabsorbable sutures
- Absorbable sutures (Correct answer)
- Monofilament sutures
- Braided sutures
Correct answer: Absorbable sutures
Absorbable sutures lose tensile strength and are digested by body enzymes or hydrolysis, eliminating the need for removal.
Question 5: Polyglactin 910 (Vicryl) is an example of which type of suture?
- Nonabsorbable monofilament
- Synthetic absorbable braided suture (Correct answer)
- Natural nonabsorbable suture
- Stainless steel wire
Correct answer: Synthetic absorbable braided suture
Vicryl (polyglactin 910) is a synthetic braided absorbable suture that loses most of its tensile strength by 3–4 weeks.
Question 6: A closed suction drain (e.g., Jackson-Pratt or Blake drain) functions by:
- Gravity drainage alone with an open system
- Creating negative pressure to actively remove fluid from a surgical site (Correct answer)
- Delivering irrigation fluid into the wound continuously
- Preventing wound closure tension
Correct answer: Creating negative pressure to actively remove fluid from a surgical site
Closed suction drains use negative pressure from a collapsible bulb or reservoir to actively evacuate serous fluid, blood, or lymph from the surgical site.
CNOR CNOR - Certification Wound Management and Tissue Handling 1
Which wound classification describes a surgical incision made under ideal conditions with no inflammation encountered?