NCLEX-RN
NCLEX RN Exam Preview Answers
1. When is the best time for the nurse to attempt to elicit the Moro reflex during an infant examination?
- A. When the infant is sleeping
- B. At the end of the examination
- C. Before auscultation of the thorax
- D. At about the middle of the examination
Correct answer: B
Rationale: The Moro reflex, also known as the startle reflex, is best elicited at the end of the examination because it can cause the infant to cry. This reflex is triggered by a sudden change in position or loud noise, and it involves the infant's arms extending and then coming back together as if embracing. By eliciting this reflex at the end of the examination, the nurse can observe the infant's response and ensure that the examination is completed without unnecessary distress. Choices A, C, and D are incorrect because the Moro reflex is typically elicited at the end of the examination to avoid disrupting the assessment process and causing unnecessary discomfort to the infant.
2. The nurse is developing a plan of care for an infant after surgical intervention for imperforate anus. The nurse should include in the plan that which position is the most appropriate one for the infant in the postoperative period?
- A. Prone position
- B. Supine with no head elevation
- C. Side-lying with the legs extended
- D. Supine with the head elevated 45 degrees
Correct answer: A
Rationale: The most appropriate position for an infant after surgical intervention for imperforate anus is the prone position. Placing the infant in a prone position helps keep the hips elevated, reducing edema and pressure on the surgical site. This position promotes optimal healing and comfort for the infant. Option B, supine with no head elevation, does not provide the necessary elevation to reduce pressure on the surgical site. Option C, side-lying with the legs extended, does not offer the same benefits as the prone position in terms of reducing pressure on the surgical site. Option D, supine with the head elevated 45 degrees, does not specifically address the need for hip elevation to prevent pressure on the surgical site. Therefore, the correct choice is the prone position for this postoperative care scenario.
3. During an examination, the nurse notices that a female patient has a round "moon"? face, central trunk obesity, and a cervical hump. Her skin is fragile with bruises. The nurse determines that the patient likely has which condition?
- A. Gigantism
- B. Acromegaly
- C. Cushing syndrome
- D. Marfan syndrome
Correct answer: C
Rationale: Cushing syndrome is characterized by weight gain and edema with central trunk and cervical obesity (buffalo hump) and a round, plethoric face (moon face). Excessive catabolism in Cushing syndrome causes muscle wasting, weakness, thin arms and legs, reduced height, and thin, fragile skin with purple abdominal striae, bruising, and acne. Gigantism is characterized by increased height and weight and delayed sexual development, which are not present in the patient. Acromegaly results from excessive growth hormone secretion in adulthood, leading to bone overgrowth in specific areas like the face, head, hands, and feet. Marfan syndrome is an inherited connective tissue disorder characterized by a tall, thin stature and distinct features not seen in this patient. The combination of signs described in the question aligns with the clinical presentation of Cushing syndrome.
4. Which gland of the endocrine system secretes a hormone that assists with the sleep/wake cycle?
- A. Pituitary
- B. Pineal
- C. Pancreas
- D. Hypothalamus
Correct answer: B
Rationale: The correct answer is the Pineal gland. The Pineal gland, located in the brain, secretes melatonin, which plays a crucial role in regulating the sleep/wake cycle in response to exposure to light. The Pituitary gland (Choice A) secretes various hormones but not specifically related to the sleep/wake cycle. The Pancreas (Choice C) secretes insulin and digestive enzymes, not hormones related to the sleep/wake cycle. The Hypothalamus (Choice D) is involved in regulating many bodily functions, including hormone secretion, but it does not directly secrete the hormone that regulates the sleep/wake cycle.
5. After a symptom is recognized, the first effort at treatment is often self-treatment. Which of the following statements is true about self-treatment?
- A. "Not recognized as valuable by most health care providers."?
- B. "Usually ineffective and may delay more effective treatment."?
- C. "Always less expensive than biomedical alternatives."?
- D. "Influenced by the accessibility of over-the-counter medicines."?
Correct answer: D
Rationale: After a symptom is identified, the first effort at treatment is often self-treatment. The availability of over-the-counter medications, the relatively high literacy level of Americans, and the influence of the internet and mass media in communicating health-related information to the general population have contributed to the high percentage of cases of self-treatment. Health care providers are recognizing the value of a wide variety of alternative, complementary, and traditional interventions. Many self-treatments, such as over-the-counter medications, are effective. Self-treatment is not always less expensive. Choice A is incorrect as health care providers are recognizing the value of self-treatment. Choice B is incorrect because self-treatment can be effective in many cases. Choice C is incorrect as self-treatment is not always less expensive; it depends on the specific treatment being used.
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