which oxygen delivery system would the nurse apply that would provide the highest concentrations of oxygen to the client
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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. In educating clients on ways to manage pain, which topic can be appropriately delegated to an LPN/LVN who will continue under supervision?

Correct answer: C

Rationale: The correct answer is 'Alternating Rest/Activity.' This topic falls within the nursing scope of practice and is typically covered in the training and education of all nurses, including LPN/LVNs. Educating clients on alternating rest and activity is safe, straightforward, and a standard non-pharmacological pain management strategy. Acupuncture (Choice A) and Guided Imagery (Choice B) involve specific skills and techniques that are typically outside the scope of practice for LPN/LVNs. Over-the-counter medications (Choice D) may require additional assessment, monitoring, and considerations that are beyond the usual delegation for LPN/LVNs.

3. Which pathologic condition is described as 'increased intraocular pressure of the eye'?

Correct answer: D

Rationale: The correct answer is Glaucoma. Glaucoma is a condition characterized by increased intraocular pressure in the eye, which can lead to optic nerve damage, vision loss, and blindness if left untreated. Detached Retina (A), Fovea Centralis (B), and Presbyopia (C) are not conditions associated with increased intraocular pressure like Glaucoma. Detached Retina is a separation of the retina from its underlying tissue, Fovea Centralis is a part of the retina responsible for sharp central vision, and Presbyopia is an age-related condition affecting near vision due to the loss of flexibility in the eye's lens.

4. Your patient has been diagnosed with acute bronchitis. You should expect that all of the following will be ordered EXCEPT:

Correct answer: C

Rationale: In the management of acute bronchitis, antibiotics are not typically prescribed unless there is a confirmed bacterial infection. Acute bronchitis is usually caused by a virus, so antibiotics are not effective in treating it. The primary focus is on symptom management and supportive care. Increased fluid intake helps keep the airway moist and liquefy secretions, aiding in their removal. Cough medications can help relieve cough symptoms. The use of a vaporizer can help moisten the air, making breathing more comfortable for the patient. It is crucial to differentiate between viral and bacterial causes of respiratory infections to avoid unnecessary antibiotic use and prevent antibiotic resistance. Therefore, the correct answer is 'Antibiotics.' Increased fluid intake, cough medications, and the use of a vaporizer are commonly recommended for managing symptoms and improving comfort in patients with acute bronchitis.

5. The clinic nurse reviews the record of an infant and notes that the primary health care provider (PHCP) has documented a diagnosis of suspected Hirschsprung's disease. The nurse reviews the assessment findings documented in the record, knowing that which sign most likely led the mother to seek health care for the infant?

Correct answer: C

Rationale: Hirschsprung's disease, also known as congenital aganglionosis or aganglionic megacolon, is characterized by the absence of ganglion cells in the rectum and other parts of the affected intestine. Clinical manifestations of Hirschsprung's disease include chronic constipation with pellet-like or ribbon-like foul-smelling stools, delayed or absent passage of meconium in the neonatal period, bowel obstruction (especially in the neonatal period), abdominal pain and distention, and failure to thrive. In the case of an infant with suspected Hirschsprung's disease, regurgitation of feedings is a sign that may have led the mother to seek healthcare. This symptom can be associated with the bowel dysfunction and obstruction seen in Hirschsprung's disease. Options A, B, and D are not typically associated with Hirschsprung's disease. Diarrhea is not a common symptom, projectile vomiting is not a typical presentation, and constipation, while a symptom of the disease, is not the sign that would most likely prompt a visit to seek healthcare in an infant suspected of having Hirschsprung's disease.

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