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: Reporting itching if it becomes bothersome is part of client teaching, as it may indicate inflammation or infection of the ear canal. External otitis is also known as swimmer's ear, as it can be caused by water trapped in the ear after swimming or bathing.

Choice B Reason: Using earplugs when swimming is part of client teaching, as it can prevent water from entering and irritating the ear canal. External otitis can be prevented by keeping the ear dry and avoiding trauma or foreign objects.

Choice C Reason: This is the correct choice. Inserting a cotton-tip applicator to remove excess wax is not part of client teaching, as it can damage or scratch the ear canal and increase the risk of infection. Wax helps protect and lubricate the ear canal and should not be removed unless it causes hearing impairment or discomfort.

Choice D Reason: Using a hairdryer set to low, 6 inches away from ear is part of client teaching, as it can help dry the ear canal after swimming or bathing. External otitis can be treated by applying warm compresses, using topical antibiotics or antifungals, and taking pain relievers or anti-inflammatory drugs.

Choice A Reason: This is incorrect because intestinal obstruction is not a common complication of ileostomy surgery. An ileostomy is a surgical opening in the abdomen that connects the end of the small intestine (ileum) to a pouch or bag outside the body. This allows stool to bypass the colon and rectum. Intestinal obstruction can occur if there is a blockage or narrowing in any part of the digestive tract, but it is more likely to affect the colon than the ileum.

Choice B Reason: This is incorrect because folate deficiency is not a common complication of ileostomy surgery. Folate is a vitamin that is essential for DNA synthesis and cell division. Folate is mainly absorbed in the jejunum, which is the middle part of the small intestine. An ileostomy does not affect the jejunum, so it does not interfere with folate absorption.

Choice C Reason: This is incorrect because malabsorption of fat is not a common complication of ileostomy surgery. Fat is digested and absorbed in both the small and large intestine. An ileostomy does not affect fat digestion, but it may reduce fat absorption by decreasing the transit time and surface area of the intestine. However, this is usually not significant enough to cause malabsorption symptoms.

Choice D Reason: This is correct because fluid and electrolyte imbalance is a common complication of ileostomy surgery. Fluid and electrolytes are mainly absorbed in the colon, which is bypassed by an ileostomy. This can result in increased fluid and electrolyte loss through stool, especially sodium and potassium. This can lead to dehydration, hypotension, weakness, cramps, or arrhythmias.