The nurse examines the patient's skin after interdermal skin testing at the appropriate time for evaluating response and determines that the area presents a wheal (9 to 15 mm) with associated erythema. The nurse records the result as:
A) 1+
B) 2+
C) 3+
D) 4+
Ans: C
Feedback: The interpretations of skin testing reactions are negative, wheal soft with minimal erythema; 1+ wheal (5 to 8 mm) with associated erythema; 2+, wheal (7 to 10 mm) with associated erythema; 3+, wheal (9 to 15 mm), slight pseudopodia possible with associated erythema; 4+, wheal (12 mm+) with pseudopodia and diffuse erythema.
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