which oxygen delivery system would the nurse apply that would provide the highest concentrations of oxygen to the client
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Nursing Elites

NCLEX-RN

NCLEX RN Practice Questions Exam Cram

1. Which oxygen delivery system would provide the highest concentrations of oxygen to the client?

Correct answer: C

Rationale: The correct answer is the non-rebreather mask. This oxygen delivery system has a one-way valve that prevents exhaled air from entering the reservoir bag and one or more valves covering the air holes on the face mask itself to prevent the inhalation of room air but allow exhalation of air. When a tight seal is achieved around the mask, up to 100% of oxygen is available. Choice A, the Venturi mask, delivers precise oxygen concentrations but not as high as the non-rebreather mask. Choice B, the partial rebreather mask, allows the client to rebreathe some exhaled air, resulting in lower oxygen concentrations than the non-rebreather mask. Choice D, the simple face mask, delivers low to moderate oxygen concentrations and is not designed to provide the highest concentrations like the non-rebreather mask.

2. A clinic nurse interviews a parent who is suspected of abusing her child. Which of the following characteristics is the nurse least likely to find in an abusing parent?

Correct answer: C

Rationale: The profile of a parent at risk of abusive behavior includes a tendency to blame the child or others for the injury sustained. Abusers typically blame others, especially their partners, for the mistakes in their lives. This is related to hypersensitivity, but they are not necessarily alike. This occurs because most abusive people don't hold themselves as being accountable for the actions they commit. Instead, they'll try to shift the blame to the person that they have abused and somehow say they "deserved it"? or that they were forced into a corner.

3. A patient is getting discharged from a skilled nursing facility (SNF). The patient has a history of severe COPD and PVD. The patient is primarily concerned about his ability to breathe easily. Which of the following would be the best instruction for this patient?

Correct answer: C

Rationale: The correct answer is to instruct the patient to cough following bronchodilator utilization. In COPD and PVD patients, bronchodilators help to open up the airways, making coughing more effective in clearing secretions from the lungs. This instruction can aid in improving the patient's ability to breathe by enhancing airway clearance. Deep breathing techniques (Choice A) may help increase oxygen levels but may not directly address the patient's immediate concern of breathing difficulty. Coughing regularly and deeply (Choice B) can be beneficial, but the timing following bronchodilator use is more crucial to maximize its effectiveness. Decreasing CO2 levels by increasing oxygen intake during meals (Choice D) does not directly address the patient's concern about breathing ease or the role of bronchodilators in improving cough effectiveness.

4. An emergency department nurse is performing an assessment on a child with a suspected diagnosis of intussusception. Which assessment question for the parents will elicit the most specific data related to this disorder?

Correct answer: D

Rationale: The correct answer is asking the parents to describe the type of pain the child is experiencing because a report of severe colicky abdominal pain in a healthy, thriving child between 3 and 17 months of age is the classic presentation of intussusception. Typical behavior includes screaming and drawing the knees up to the chest. This specific question helps in identifying the key symptom of intussusception. Choices A, B, and C are important aspects of a health history but are not specific to the diagnosis of intussusception. Food allergies, bowel movements, and recent food intake are relevant for a comprehensive assessment but do not directly relate to the specific symptoms of intussusception.

5. 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?

Correct answer: C

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.

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