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A physical therapist prepares to select a dressing for a patient with a lower extremity arterial insufficiency ulcer. The wound measures two centimeters in diameter with a depth of one-half centimeter. Considering the typical characteristics of an arterial insufficiency ulcer, which dressing would be the MOST desirable to maintain an appropriate moisture balance in the wound bed?1.Hydrogel2.Transparent film3.Wet-to-dry gauze4.Calcium alginate
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