A nurse is caring for a client who has a cloudy, opaque area over the lens of one eye.
The nurse should identify that this is a manifestation of which of the following visual impairments?

McBurney’s point is located one-third of the distance from the right anterior superior iliac spine to the umbilicus. This is where the base of the appendix is attached to the cecum, which is part of the large intestine. When the appendix becomes inflamed or infected, it causes pain in this area.

Choice A is wrong because the left lower quadrant is where the sigmoid colon and part of the small intestine are located.

These organs are not related to appendicitis.

Choice B is wrong because the left upper quadrant is where the stomach, spleen, and part of the pancreas are located.

These organs are also not related to appendicitis.

Choice C is wrong because the right upper quadrant is where the liver, gallbladder, and part of the small intestine are located. These organs can cause pain in this area if they have problems, but not appendicitis

These are some of the criteria used to assist in making the diagnosis of chronic fatigue syndrome (CFS) according to the Institute of Medicine (IOM) 2015 report.

Choice B is wrong because recent exposure to influenza is not a criterion for CFS diagnosis. Although some cases of CFS may be triggered by viral infections, such as Epstein-Barr virus or human herpes virus 6, there is no specific evidence that influenza causes CFS.

Choice A is correct because CFS is not caused by a primary condition. CFS is a diagnosis of exclusion, meaning that other possible causes of fatigue, such as sleep disorders, anemia, diabetes, thyroid problems, or mental health issues, must be ruled out before making the diagnosis.

Choice C is correct because unrefreshing sleep is one of the required symptoms for CFS diagnosis. Patients with CFS may not feel better or less tired even after a full night of sleep despite the absence of specific objective sleep alterations. Choice D is correct because fatigue that is not relieved by stress reduction is another required symptom for CFS diagnosis. Patients with CFS experience post-exertional malaise (PEM), which means that their symptoms worsen after physical, mental, or emotional exertion that would not have caused a problem before the illness.

Choice E is correct because severe tiredness for 2 months or more is one of the additional manifestations that must be present for CFS diagnosis. The IOM 2015 report states that the fatigue associated with CFS must last for more than 6 months and occur at least half the time at moderate, substantial or severe intensity.