Nursing Elites

1. Women who have breast cancer due to a BRCA1 gene mutation are usually:

• A. positive for human epidermal growth factor receptor 1 and 2.
• B. negative for estrogen receptor.
• C. positive for estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2.
• D. negative for estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2.

Correct answer: D

Rationale: Women with breast cancer due to a BRCA1 gene mutation commonly have a triple-negative breast cancer subtype, which means they are negative for estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 (HER2). This subtype tends to be more aggressive and harder to treat. Choice A is incorrect as they are typically negative for HER2. Choice B is incorrect because they are usually negative for estrogen receptor. Choice C is incorrect as they are usually negative for progesterone receptor and HER2.

2. Which physiologic response is most likely to accompany activation of the parasympathetic nervous system?

• A. Increased heart rate
• B. Increased gastric motility
• C. Pupil dilation
• D. Sweating

Correct answer: B

Rationale: The correct answer is B: Increased gastric motility. The parasympathetic nervous system is known to promote rest and digest functions, which includes increasing gastric motility to aid in digestion. Choices A, C, and D are incorrect as they are more characteristic of the sympathetic nervous system. The sympathetic nervous system is responsible for the fight or flight response, leading to increased heart rate (Choice A), pupil dilation (Choice C), and sweating (Choice D) among other responses.

3. The nurse is preparing to administer a vaccine to a newborn. Before administering the vaccine, the nurse should

• A. warm the vaccine to room temperature.
• B. gently cleanse the chosen injection site.
• C. check the infant's temperature.
• D. administer the full dose at a single injection site.

Correct answer: C

Rationale: Before administering a vaccine to a newborn, it is essential for the nurse to check the infant's temperature. This is important to ensure that the newborn does not have a fever, which could indicate an underlying infection or illness. Warming the vaccine to room temperature is not necessary and could be harmful. Vigorously massaging the injection site is not recommended as it can cause discomfort and tissue damage. Dividing the dose for administration to three injection sites is not standard practice for vaccine administration to a newborn.

4. A 55-year-old male patient is taking finasteride (Proscar) for benign prostatic hyperplasia (BPH). What patient teaching should the nurse provide regarding the use of this medication?

• A. Avoid taking over-the-counter antacids while on this medication.
• B. This medication may decrease libido.
• C. This medication may take several months to improve symptoms.
• D. This medication may cause increased hair growth.

Correct answer: C

Rationale: Correct Answer: The nurse should inform the patient that finasteride may take several months to improve symptoms of BPH. It is essential for patients to understand the delayed onset of action to manage their expectations and compliance. Choice A is incorrect because there is no significant interaction between finasteride and over-the-counter antacids. Choice B is incorrect as finasteride is more commonly associated with decreased libido rather than increased libido. Choice D is incorrect as finasteride is known to reduce hair growth rather than increase it.

5. A patient has acute respiratory failure (ARF). Which of the following would the nurse expect to find?

• A. Alkalosis and hyperventilation
• B. Hypoxemia and hypercapnia
• C. Alkalosis and high potassium
• D. Elevated sodium and acidosis

Correct answer: B

Rationale: In acute respiratory failure, hypoxemia (low blood oxygen) and hypercapnia (high blood carbon dioxide) are commonly observed. Choice A is incorrect because alkalosis (high pH) and hyperventilation are not typically seen in acute respiratory failure. Choice C is incorrect as it mentions alkalosis and high potassium, which are not characteristic of acute respiratory failure. Choice D is also incorrect because elevated sodium and acidosis are not typically associated with acute respiratory failure.

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