One liter of normal saline is to infuse over 8 hours. At what rate will the nurse set the infusion pump?

d. Emesis from purging corrodes the tooth enamel

Explanation of Choices

Choice A Reason: Food is Rapidly Ingested Without Proper Chewing

While individuals with bulimia nervosa may engage in rapid eating during binge episodes, this behavior alone does not directly cause dental deterioration. Rapid ingestion of food can lead to other gastrointestinal issues, but it is not the primary cause of dental problems seen in bulimia nervosa. The main dental issues arise from the purging behavior that follows binge eating.

Choice B Reason: Poor Dental and Oral Hygiene Leads to Dental Caries

Poor dental and oral hygiene can indeed lead to dental caries (cavities), but this is not the primary issue in bulimia nervosa. The dental deterioration observed in bulimia nervosa is more specifically related to the effects of repeated vomiting, which introduces stomach acid into the mouth. While maintaining good oral hygiene is important, it does not fully address the unique dental challenges posed by bulimia.

Choice C Reason: Purging Causes the Depletion of Dietary Calcium

Purging can lead to various nutritional deficiencies, including calcium, but the depletion of dietary calcium is not the main cause of dental deterioration in bulimia nervosa. The primary issue is the direct effect of stomach acid on the teeth. Calcium depletion can contribute to overall bone health issues, but it is not the specific cause of the dental erosion seen in bulimia.

Choice D Reason: Emesis from Purging Corrodes the Tooth Enamel

Emesis (vomiting) from purging is the primary cause of dental deterioration in bulimia nervosa. When individuals with bulimia vomit, stomach acid comes into contact with the teeth, leading to enamel erosion. This acid is highly corrosive and can wear away the protective enamel layer, resulting in increased tooth sensitivity, cavities, and other dental issues. This repeated exposure to stomach acid is the most significant factor in the dental deterioration observed in bulimia nervosa.

b. +3 edema to the mid-calf

d. Irregular wound borders

e. Minimal serous drainage

Explanation of Choices

Choice A Reason: Distinct Wound Borders to Plantar Aspect of Foot

Venous ulcers typically present with irregular wound borders rather than distinct ones. They are usually found on the lower legs, particularly around the medial malleolus (inner ankle), rather than the plantar aspect of the foot. The plantar aspect of the foot is more commonly associated with diabetic ulcers or pressure sores. Therefore, distinct wound borders to the plantar aspect of the foot are not indicative of a venous ulcer.

Choice B Reason: +3 Edema to the Mid-Calf

Edema, or swelling, is a common finding in patients with venous ulcers. Venous insufficiency leads to increased pressure in the veins, causing fluid to leak into the surrounding tissues, resulting in edema. The presence of +3 edema (a significant level of swelling) in the mid-calf is a strong indicator of venous insufficiency and, consequently, venous ulcers. This finding supports the diagnosis of a venous ulcer.

Choice C Reason: Patient Reports 9 (0-10) Pain Scale to Area

While pain can be associated with venous ulcers, it is not a definitive diagnostic criterion. Pain levels can vary widely among individuals with venous ulcers, and some may experience minimal discomfort. A pain scale rating of 9 out of 10 indicates severe pain, which could be due to various conditions, not specifically venous ulcers. Therefore, this finding alone is not sufficient to suspect a venous ulcer.

Choice D Reason: Irregular Wound Borders

Venous ulcers are characterized by their irregular wound borders. Unlike arterial ulcers, which have well-defined edges, venous ulcers tend to have uneven, irregular borders. This is due to the chronic nature of venous insufficiency and the ongoing damage to the skin and underlying tissues. The presence of irregular wound borders is a key indicator of a venous ulcer.

Choice E Reason: Minimal Serous Drainage

Venous ulcers often produce serous drainage, which is a clear to pale yellow fluid. The amount of drainage can vary, but minimal serous drainage is a common finding. This type of drainage is due to the chronic inflammation and fluid leakage associated with venous insufficiency. Therefore, minimal serous drainage is consistent with the presence of a venous ulcer.