LPN Wound Care and Skin Integrity 2

Question 1

When performing wound irrigation, which pressure range effectively removes debris without causing tissue damage?

Accepted Answer

4–15 psi

Answer

Irrigation pressure of 4–15 psi is sufficient to dislodge debris and bacteria while avoiding trauma to fragile healing tissue.

Question 2

Which characteristic of wound drainage is most indicative of an active infection?

Accepted Answer

Purulent (thick, cloudy, foul-smelling) drainage

Answer

Purulent exudate is thick, cloudy, and often malodorous, reflecting bacterial colonization and an active infectious process.

Question 3

A wound that has not progressed through the normal healing stages after 4 weeks is classified as a(n):

Accepted Answer

Chronic wound

Answer

A chronic wound is defined by failure to heal within an expected timeframe, generally more than 4 weeks without meaningful progress.

Question 4

What is the primary purpose of a wet-to-dry dressing?

Accepted Answer

Perform mechanical debridement of necrotic tissue

Answer

Wet-to-dry dressings adhere to necrotic tissue as they dry and remove it mechanically when the dressing is changed.

Question 5

Which agent is most commonly used for enzymatic (chemical) debridement of necrotic wound tissue?

Accepted Answer

Collagenase (Santyl)

Answer

Collagenase (Santyl) is an enzymatic debriding agent that selectively breaks down necrotic collagen without harming healthy tissue.

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