ATI RN
WGU Pathophysiology Final Exam
1. A nurse is providing discharge teaching to a patient who will be taking sildenafil (Viagra). Which of the following should the nurse include in the instructions?
- A. Take this medication 1 hour before sexual activity.
- B. Do not take more than one dose in a 24-hour period.
- C. Seek immediate medical attention if you experience vision or hearing loss.
- D. Take this medication on an empty stomach.
Correct answer: B
Rationale: The correct answer is B: 'Do not take more than one dose in a 24-hour period.' It is essential for the nurse to emphasize this instruction to prevent potential adverse effects from taking multiple doses of sildenafil. Choice A is incorrect because sildenafil should be taken approximately 30 minutes to 4 hours before sexual activity, not specifically 1 hour before. Choice C is important but not the priority; while vision or hearing loss are potential serious side effects of sildenafil, the immediate concern should be focused on dose frequency. Choice D is incorrect as sildenafil can be taken with or without food.
2. A 5-year-old male presents with low-set ears, a fish-shaped mouth, and involuntary rapid muscular contraction. Laboratory testing reveals decreased calcium levels. Which of the following diagnoses is most likely?
- A. B cell deficiency
- B. T cell deficiency
- C. Combined immunodeficiency
- D. Complement deficiency
Correct answer: B
Rationale: The correct answer is B: T cell deficiency. The symptoms described in the case, including low-set ears, a fish-shaped mouth, involuntary rapid muscular contraction, and decreased calcium levels, are indicative of DiGeorge syndrome. This syndrome is characterized by T cell deficiency due to thymic hypoplasia. B cell deficiency (Choice A), combined immunodeficiency (Choice C), and complement deficiency (Choice D) do not align with the clinical presentation and laboratory findings provided in the case. Therefore, T cell deficiency is the most likely diagnosis in this scenario.
3. Which of the following clinical findings in a 51-year-old woman is consistent with Graves disease?
- A. Thin hair, exophthalmos, hyperreflexia, and pretibial edema.
- B. Thin hair, exophthalmos, weight gain, and constipation.
- C. Thick hair, bradycardia, weight loss, and dry skin.
- D. Thick hair, bradycardia, weight gain, and constipation.
Correct answer: A
Rationale: The clinical findings of thin hair, exophthalmos (bulging eyes), hyperreflexia, and pretibial edema are classic manifestations of Graves disease, an autoimmune condition that results in hyperthyroidism. Choice B is incorrect because weight gain and constipation are more indicative of hypothyroidism, not hyperthyroidism seen in Graves disease. Choice C is incorrect as the symptoms described are more characteristic of hypothyroidism, not hyperthyroidism. Choice D is also incorrect as the symptoms listed are not consistent with Graves disease but rather suggest hypothyroidism.
4. Which of the following are risk factors for hypertension (HTN)?
- A. High sugar, low-fat diet
- B. Increased physical activity
- C. Tobacco use
- D. Low-fat diet
Correct answer: C
Rationale: Tobacco use is a well-established risk factor for hypertension (HTN) as it can lead to increased blood pressure. High sugar intake and low-fat diets, as well as increased physical activity, are not directly associated with hypertension. While low-fat diets are generally recommended for overall health, they are not specifically linked to hypertension risk.
5. What symptoms would the nurse expect to see in a client with chronic obstructive pulmonary disease (COPD)?
- A. Dyspnea on exertion
- B. Normal lung sounds
- C. Normal arterial blood gases
- D. Onset of the disease during young adulthood
Correct answer: A
Rationale: The correct answer is A: Dyspnea on exertion. COPD typically manifests with symptoms like dyspnea on exertion due to impaired lung function. This symptom is a result of the airways being obstructed and the lungs not being able to expel air effectively. Choices B and C are incorrect because in COPD, abnormal lung sounds such as wheezing, crackles, or diminished breath sounds are often heard upon auscultation, and arterial blood gases are usually abnormal, showing low oxygen levels and high carbon dioxide levels. Choice D is incorrect as COPD is more commonly diagnosed in individuals over 40 who have a history of smoking or exposure to lung irritants.
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