The client inquires what the positive result from the potassium hydroxide (KOH) test indicates. Which of the following is an accurate response by the nurse?

Choice A Reason: Seasonal allergies are not a cause of delirium, but a common condition that affects the respiratory system and causes symptoms such as sneezing, runny nose, itchy eyes, or coughing.

Choice B Reason: History of GERD is not a cause of delirium, but a chronic condition that affects the digestive system and causes symptoms such as heartburn, regurgitation, chest pain, or difficulty swallowing.

Choice C Reason: Benzodiazepines are a cause of delirium, especially in older adults or those with cognitive impairment. Benzodiazepines are a class of drugs that act on the central nervous system and cause sedation, relaxation, and reduced anxiety. However, they can also impair memory, attention, orientation, and judgment, and lead to confusion, agitation, hallucinations, or delusions.

Choice D Reason: Completed antibiotics 10 days ago are not a cause of delirium, but a treatment for bacterial infections. Antibiotics can have side effects such as nausea, diarrhea, rash, or allergic reactions, but they do not cause delirium unless they are toxic or interact with other medications.

Choice A reason: This is incorrect because using sign language when communicating with the client is not an appropriate action for the nurse to take. Sign language is a form of communication that uses hand gestures, facial expressions, and body movements. It is not a universal language and requires training and practice. The nurse should not assume that the client knows or prefers sign language unless they have indicated so.

Choice B reason: This is incorrect because speaking loudly and into the client's good ear is not an appropriate action for the nurse to take. Speaking loudly can distort the sound quality and cause discomfort or irritation to the client. Speaking into the client's good ear can also create a sense of imbalance and isolation. The nurse should speak at a normal volume and tone, and face the client directly.

Choice C reason: This is the correct answer because speaking directly to the client in a normal, clear voice is an appropriate action for the nurse to take. Speaking directly to the client can help them see the nurse's mouth movements and facial expressions, which can enhance understanding and communication. Speaking in a normal, clear voice can help convey the message clearly and respectfully.

Choice D reason: This is incorrect because sitting by the client's side and speaking very slowly is not an appropriate action for the nurse to take. Sitting by the client's side can make it difficult for them to see the nurse's face and hear their voice. Speaking very slowly can also make the message unclear and patronizing. The nurse should sit in front of the client and speak at a normal pace.