Nursing Elites

1. During your evaluation of a 14-year-old girl with a BMI of 18, she reports inability to eat, induced vomiting, and severe constipation. Which of the following would you most likely suspect?

• A. Multiple sclerosis
• B. Anorexia nervosa
• C. Bulimia nervosa
• D. Systemic sclerosis

Correct answer: B

Rationale: The clinical presentation described in the question is highly suggestive of anorexia nervosa. Anorexia nervosa is characterized by self-imposed starvation due to a distorted body image and an intense fear of gaining weight, even when the individual is underweight. The patient's symptoms of inability to eat, induced vomiting, and severe constipation align with the behavior seen in anorexia nervosa, including restrictive eating patterns and purging behaviors. Multiple sclerosis (Choice A) is a neurological disorder, not associated with the described symptoms. Bulimia nervosa (Choice C) typically involves binge eating followed by purging behaviors, which is different from the described primary restriction seen in anorexia nervosa. Systemic sclerosis (Choice D) is a connective tissue disorder and is not related to the symptoms of self-induced vomiting and severe constipation reported in this case.

2. A nurse admits a 3-week-old infant to the special care nursery with a diagnosis of bronchopulmonary dysplasia. As the nurse reviews the birth history, which data would be most consistent with this diagnosis?

• A. Gestational age assessment suggested growth retardation
• B. Meconium was cleared from the airway at delivery
• C. Phototherapy was used to treat Rh incompatibility
• D. The infant received mechanical ventilation for 2 weeks

Correct answer: D

Rationale: The correct answer is 'The infant received mechanical ventilation for 2 weeks.' Bronchopulmonary dysplasia is a condition primarily caused by therapies like positive-pressure ventilation used in the treatment of lung disease. This leads to lung damage and subsequent respiratory problems. Choices A, B, and C are not consistent with the diagnosis of bronchopulmonary dysplasia. Gestational age assessment suggesting growth retardation is more indicative of intrauterine growth restriction, clearing meconium from the airway at delivery is related to potential respiratory issues at birth, and phototherapy for Rh incompatibility is unrelated to bronchopulmonary dysplasia.

3. What drives respiration in a patient with advanced chronic respiratory failure?

• A. Hypoxemia
• B. Hypocapnia
• C. Hypercapnia
• D. None of the above

Correct answer: A

Rationale: In patients with advanced chronic respiratory failure, such as those with chronic obstructive pulmonary disease (COPD), the respiratory drive shifts from being primarily stimulated by high levels of carbon dioxide (hypercapnia) to being driven by low oxygen levels (hypoxemia). This shift is due to the body's adaptation to chronic respiratory acidosis and hypoxemia. As a result, hypoxemia becomes the primary stimulus for respiration in these patients. Hypocapnia, a low level of carbon dioxide, is not a common driver of respiration in patients with advanced chronic respiratory failure. Therefore, the correct answer is hypoxemia.

4. When taking a patient’s history, she mentions being depressed and dealing with an anxiety disorder. Which of the following medications would the patient most likely be taking?

• A. Amitriptyline (Elavil)
• B. Calcitonin
• C. Pergolide mesylate (Permax)
• D. Verapamil (Calan)

Correct answer: A

Rationale: The correct answer is Amitriptyline (Elavil) as it is a tricyclic antidepressant commonly used to treat symptoms of depression and anxiety disorders. Amitriptyline works by increasing the levels of certain neurotransmitters in the brain to improve mood. Choices B, C, and D are incorrect. Calcitonin is a hormone used in the treatment of osteoporosis; Pergolide mesylate is a dopamine agonist used in Parkinson's disease; Verapamil is a calcium channel blocker used to treat high blood pressure and certain heart conditions, not mental health disorders.

5. Which of the following is NOT a warning sign that compensatory mechanisms in a patient in shock are failing?

• A. Increasing heart rate above normal for the patient's age.
• B. Absent peripheral pulses
• C. Decreasing level of consciousness
• D. Increasing blood pressure

Correct answer: D

Rationale: In a patient in shock, increasing blood pressure is not a sign that compensatory mechanisms are failing. As shock progresses and compensatory mechanisms fail, systolic blood pressure will decrease, leading to hypotension, which is a late and ominous sign in these patients. Therefore, choices A, B, and C are warning signs of failing compensatory mechanisms in shock: an increasing heart rate above normal, absent peripheral pulses, and decreasing level of consciousness, respectively. An increasing blood pressure is not indicative of compensatory failure in shock; instead, it may be a sign of compensatory mechanisms still trying to maintain perfusion pressure.

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