Certified Wound Ostomy Nurse (CWON) Practice Test

What occurs during the inflammatory response phase of partial thickness wound healing?

1. New skin cell formation

2. Erythema, edema, serous exudate

3. Complete wound closure

4. Growth factor stimulation

The correct answer is: Erythema, edema, serous exudate

During the inflammatory response phase of partial thickness wound healing, erythema, edema, and serous exudate are key characteristics that indicate the body's initial reaction to injury. This phase typically occurs immediately after a wound is sustained and involves several physiological processes. Erythema, or redness, is caused by increased blood flow to the area as blood vessels dilate in response to injury. This increased circulation brings immune cells to the site to help prevent infection and initiate healing. Edema, or swelling, results from the accumulation of fluid in the tissues, which occurs as plasma proteins and white blood cells leak into the interstitial space. This fluid not only helps to transport nutrients and immune cells to the wounded area but also plays a role in cleaning the wound by flushing out debris and dead tissue. Serous exudate, which is typically a clear, thin fluid, is formed during this phase as part of the healing process. This fluid serves to provide a moist environment that is conducive to healing and can also help protect the wound from outside contaminants. While new skin cell formation occurs later in the healing process, particularly during the proliferation phase, and growth factor stimulation is important for overall wound healing, these processes are not characteristic of the inflammatory response. Complete