NCLEX-RN
NCLEX RN Exam Review Answers
1. A patient is being admitted to the ICU with a severe case of encephalitis. Which of these drugs would the nurse not expect to be prescribed for this condition?
- A. Acyclovir (Zovirax)
- B. Mannitol (Osmitrol)
- C. Lactated Ringer's
- D. Phenytoin (Dilantin)
Correct answer: Lactated Ringer's
Rationale: In the treatment of encephalitis, medications like Acyclovir and Phenytoin are commonly prescribed. Acyclovir is an antiviral medication used to treat viral infections like herpes simplex virus, which can cause encephalitis. Phenytoin is an antiepileptic drug that may be used to manage seizures associated with encephalitis. Mannitol is a diuretic used to reduce intracranial pressure (ICP) by decreasing cerebral edema. Lactated Ringer's solution, on the other hand, is primarily used in fluid replacement therapy and may not be indicated if a patient is at risk for high ICP, as excessive fluid administration could worsen cerebral edema and increase ICP.
2. What drives respiration in a patient with advanced chronic respiratory failure?
- A. Hypoxemia
- B. Hypocapnia
- C. Hypercapnia
- D. None of the above
Correct answer: Hypoxemia
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.
3. A 20-year-old female attending college is found unconscious in her dorm room. She has a fever and a noticeable rash. She has just been admitted to the hospital. Which of the following tests is most likely to be performed first?
- A. Blood sugar check
- B. CT scan
- C. Blood cultures
- D. Arterial blood gases
Correct answer: Blood cultures
Rationale: The most likely test to be performed first in this scenario is blood cultures. Blood cultures are crucial to investigate the fever and rash symptoms in an unconscious patient. This test is used to detect foreign invaders like bacteria, yeast, and other microorganisms in the blood, which could indicate a blood infection (bacteremia). A positive blood culture result confirms the presence of bacteria in the blood. A blood sugar check (choice A) may be important but is less likely to be the first test in this context. A CT scan (choice B) and arterial blood gases (choice D) are generally not the initial tests performed to investigate a fever and rash with altered mental status.
4. The nurse is caring for a newborn infant after surgical intervention for imperforate anus. The nurse should place the infant in which position in the postoperative period?
- A. Supine with no head elevation
- B. Side-lying with the legs flexed
- C. Side-lying with the legs extended
- D. Supine with the head elevated 30 degrees
Correct answer: Side-lying with the legs flexed
Rationale: After surgical intervention for imperforate anus, the infant should be placed in a side-lying position with the legs flexed. This position helps reduce edema and pressure on the surgical site, preventing strain and promoting comfort. Placing the infant supine with no head elevation (Choice A) doesn't offer adequate support and may increase pressure on the area. Side-lying with the legs extended (Choice C) doesn't help reduce edema and pressure effectively. Placing the infant supine with the head elevated 30 degrees (Choice D) isn't recommended as it may not provide adequate support and comfort needed for recovery.
5. A client with a new colostomy is being taught how to care for the colostomy bag. Which statement from the client indicates the need for more education?
- A. I can clean the skin around the ostomy site with soap and water when I change the bag.
- B. I should irrigate the stoma regularly to avoid buildup of gas and odor.
- C. I need to wait 30 minutes after I irrigate to replace the colostomy bag.
- D. I should change the bag when it is one-third to one-fourth full.
Correct answer: I need to wait 30 minutes after I irrigate to replace the colostomy bag.
Rationale: A client with a new colostomy requires education on proper colostomy care. Waiting 30 minutes after irrigating to replace the colostomy bag is unnecessary. The client may reapply the bag once the skin is dry. Cleaning the skin around the ostomy site with soap and water, irrigating the stoma regularly to prevent gas and odor buildup, and changing the bag when it is one-third to one-fourth full are appropriate actions. Therefore, the statement indicating the need for more education is the one suggesting a specific time interval for bag replacement after irrigation.
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