Wound Care Certification Exam Wound Care Certification Dressings and Topical Agents 5

Question 1

When using negative pressure wound therapy (NPWT) with a foam interface, which dressing change interval is standard for most chronic wounds?

Accepted Answer

Every 48–72 hours

Answer

Standard NPWT foam dressing changes are typically performed every 48–72 hours to balance granulation tissue stimulation with patient comfort.

Question 2

A wound exhibiting signs of biofilm (recalcitrant to treatment, surface glycocalyx) would BEST benefit from which combination approach?

Accepted Answer

Mechanical debridement + topical antimicrobial dressing

Answer

Biofilm management requires physical disruption through debridement combined with an antimicrobial dressing to reduce recolonization.

Question 3

Which topical agent is considered appropriate for use in wounds on patients with thyroid disorders, with CAUTION?

Accepted Answer

Iodine-based products

Answer

Iodine-based products can be absorbed systemically and affect thyroid function, so they require caution in patients with thyroid disorders.

Question 4

A clinician notes that a wound's exudate has changed from serous to seropurulent. This change MOST likely indicates:

Accepted Answer

Increasing bacterial burden or wound infection

Answer

A change to seropurulent or purulent exudate is a clinical sign of increasing bacterial burden, local infection, or systemic infection.

Question 5

Antimicrobial dressings containing polyhexamethylene biguanide (PHMB) are BEST described as:

Accepted Answer

A broad-spectrum antiseptic that disrupts bacterial cell membranes

Answer

PHMB is a broad-spectrum antiseptic that disrupts bacterial cell membranes and is associated with a low risk of resistance development.

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