During assessment, the nurse would expect which part of the body to indicate central cyanosis in a client with a severe asthma attack?

A. Improved wound healing:

While silver sulfadiazine is used to promote wound healing by preventing and treating infections in burn victims, this is not an adverse reaction. This is an intended therapeutic effect of the medication.

B. Allergic reaction in patients with sulfa allergies:

Silver sulfadiazine contains sulfa, and patients who have a sulfa allergy may experience an allergic reaction. This can range from mild skin rashes to severe systemic reactions and is considered a significant adverse reaction.

C. Delayed wound healing:

Silver sulfadiazine is generally used to promote wound healing by preventing bacterial infections. Delayed wound healing is not a common adverse reaction but may occur in some cases due to other underlying factors or if the medication is not effective against certain bacteria.

D. Increased risk of infection:

The primary purpose of silver sulfadiazine is to reduce the risk of infection in burn wounds. An increased risk of infection would indicate a failure of the medication, not an adverse reaction. The correct potential adverse reaction is an allergic response in patients with a known sulfa allergy.

A) Assess the nasolacrimal sac: Excessive tearing, or epiphora, can result from an obstruction in the nasolacrimal duct, which drains tears from the eye into the nasal cavity. By assessing the nasolacrimal sac, the nurse can determine if there is any blockage or infection causing the excessive tearing, making this the most appropriate next step.

B) Test pupillary reaction to light: While testing pupillary reaction to light is important in a comprehensive eye exam, it does not directly address the issue of excessive tearing. This test is more focused on evaluating neurological function and overall eye health.

C) Inspect the palpebral conjunctiva: Inspecting the palpebral conjunctiva can help identify inflammation, infection, or foreign bodies that may cause discomfort or tearing. However, it does not specifically address the cause of excessive tearing related to nasolacrimal duct obstruction.

D) Perform the eye positions test: The eye positions test assesses extraocular muscle function and cranial nerve integrity. While it is important for a complete eye examination, it is not directly related to the symptom of excessive tearing, which is more likely due to issues with tear drainage.