The physician suspects a client has a dermatological infection. Which of the following diagnostics will be ordered to observe color changes to the skin using an ultraviolet light source?

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: Notifying child protective services is not the priority action, as it is not indicated by the skin irregularity. The skin irregularity is most likely a Mongolian spot, which is a benign, bluish-gray or purple patch of pigmentation that is common in infants of Asian, African, or Hispanic descent. It is not a sign of abuse or injury, but rather a normal variation of skin color.

Choice B Reason: This is the correct choice. Recording the finding is the priority action, as it documents the presence and location of the Mongolian spot and prevents confusion or misdiagnosis in the future. The Mongolian spot usually fades by age 2 to 4 years, but it may persist into adulthood.

Choice C Reason: Notifying the healthcare provider is not the priority action, as it is not necessary for the skin irregularity. The skin irregularity is not a cause for concern or intervention, but rather a normal variation of skin color.

Choice D Reason: Interviewing the clients about the injury is not the priority action, as it is not appropriate for the skin irregularity. The skin irregularity is not an injury, but rather a normal variation of skin color. Interviewing the clients about it may imply suspicion or accusation of abuse, which can damage the nurse-client relationship and trust.