A nurse is preparing to administer diphenhydramine 50 mg PO every 6 hr to a client who has acute dystonia. The available medication is diphenhydramine 25 mg tablets.

How many tablets should the nurse administer per dose?

The correct answer/s is C

Choice A rationale: Hyperkalemia, or high potassium levels in the blood, is not typically associated with anorexia nervosa. In fact, individuals with anorexia nervosa are more likely to experience hypokalemia, or low potassium levels, due to inadequate dietary intake and excessive loss of potassium through vomiting or use of diuretics1.

Choice B rationale: Metrorrhagia, or irregular menstrual bleeding between periods, can occur in females with anorexia nervosa due to hormonal imbalances caused by extreme weight loss and malnutrition. However, amenorrhea, or the absence of menstruation, is more commonly observed1.

Choice C rationale: Lanugo, which is fine, soft hair that grows on the face and body, is a common finding in individuals with anorexia nervosa. It is the body’s response to severe weight loss and starvation as an attempt to provide insulation and maintain body temperature1.

Choice D rationale: Tachycardia, or a rapid heart rate, is not typically associated with anorexia nervosa. Instead, individuals with anorexia nervosa often experience bradycardia, or a slower than normal heart rate, as the body’s response to starvation1.

Rationale:

A. Agoraphobia: This choice directly aligns with the client's presentation of being afraid to leave her home alone. Agoraphobia is a specific phobia characterized by an intense fear of situations that the individual perceives as inescapable or that might potentially lead to panic or embarrassment. Common triggers for agoraphobic individuals include crowded spaces, open spaces, public transportation, or being alone outside of the home. The client's inability to leave her home for weeks due to fear is a classic symptom of agoraphobia.

B. Xenophobia: This choice refers to the fear of strangers or foreigners. While the client may experience anxiety in unfamiliar situations, the primary focus of her fear is being outdoors alone rather than encountering unfamiliar people. Additionally, the daughter's description of the client's fear specifically mentions being alone, further supporting agoraphobia as the more likely diagnosis.

C. Mysophobia: This choice refers to an extreme or obsessive fear of germs or contamination. While anxiety related to cleanliness could coexist with agoraphobia, the primary presenting complaint in this case is the fear of being outdoors, not specifically germs or contamination.

D. Aerophobia: This choice refers to the fear of flying or being in high places. There is no indication in the scenario that the client's fear is specifically related to heights or flying, making this choice less likely.

Therefore, based on the specific nature of the client's fear and the limited information provided, agoraphobia is the most probable diagnosis and the one the nurse should anticipate planning care for.