A nurse is preparing to administer an IM injection to a client using a medication from an ampule. Which of the following actions should the nurse plan to take?

A. Leaving small air bubbles in the new infusion tubing is incorrect. Air bubbles should be primed out of the tubing before use to prevent air embolism.

B. Inserting the new device distal to the old IV site is incorrect. The new IV site should be placed proximal to the old site to avoid complications from previous catheter use and ensure proper circulation.

C. Wearing clean gloves during the new IV insertion is correct. Clean gloves are appropriate when inserting a new short peripheral IV device. Sterile gloves are generally required for more invasive procedures, but when changing the device itself, clean gloves are sufficient.

D. Shaving the hair on the client's skin before inserting the new IV is incorrect. Shaving the skin is not recommended because it can cause small nicks that increase the risk of infection. Clipping the hair, if necessary, is the preferred method.

D. The nurse should promptly notify the healthcare provider to discuss the allergy history and request an alternative antibiotic that is not structurally related to penicillin or cephalosporins. Examples of alternative antibiotics may include antibiotics from different classes such as macrolides or fluoroquinolones, depending on the indication and sensitivity profile.

A. Diphenhydramine (Benadryl) is an antihistamine that can help manage allergic reactions. However, it should not be used as a standalone precautionary measure for a client with a history of anaphylaxis to penicillin. Anaphylaxis is a severe allergic reaction that can lead to life-threatening symptoms such as difficulty breathing, swelling, and low blood pressure.

B. Before taking any further steps, the nurse should clarify and confirm the nature and severity of the client's allergic reaction to penicillin. Anaphylaxis is a serious allergic reaction characterized by rapid onset and potentially life-threatening symptoms. Clarifying the history ensures accurate decision- making regarding the administration of cephalexin.

C. This is not recommended without further clarification and assessment. Given the history of anaphylaxis to penicillin, there is a significant risk of cross-reactivity with cephalosporins like cephalexin. Cephalosporins have a structural similarity to penicillin and can provoke allergic reactions in individuals with penicillin allergy, including anaphylaxis.