A nurse is performing a skin assessment on a client who has a history of melanoma.

Which finding should alert the nurse to a possible malignant lesion?

Use a non-latex glove to palpate the injection site

Rationale: The nurse should use a non-latex glove to palpate the injection site, as latex gloves can cause skin irritation, rash, or anaphylaxis in clients who have a latex allergy.

Incorrect options:

A) Use a filter needle to draw up the medication from the vial - This action is not related to preventing an allergic reaction, but rather to preventing contamination or injury from glass particles that may be present in some vials.

C) Use an alcohol swab to cleanse the injection site - This action is not related to preventing an allergic reaction, but rather to preventing infection by reducing the number of microorganisms on the skin.

D) Use a Z-track technique to inject the medication - This action is not related to preventing an allergic reaction, but rather to preventing leakage or irritation of the medication into the subcutaneous tissue by creating a zigzag path with the needle.

A black nodule with an irregular border and asymmetrical shape

Rationale: A black nodule with an irregular border and asymmetrical shape is consistent with the ABCDE criteria for melanoma, which are: Asymmetry, Border irregularity, Color variation, Diameter greater than 6 mm, and Evolving or changing appearance.

Incorrect options:

A) A brown mole with a smooth border and symmetrical shape - This is a normal finding that does not indicate malignancy.

B) A red macule with a flat surface and well-defined edges - This is likely a benign vascular lesion, such as a cherry angioma or petechiae.

D) A yellow papule with a raised surface and round edges - This is likely a benign sebaceous lesion, such as a sebaceous cyst or milia.