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. The nurse is caring for a 7-year-old child with glomerulonephritis and is preparing to discuss the plan of care with the parents. In anticipating this encounter, the nurse recognizes that which is a common reaction of parents to the diagnosis of glomerulonephritis?

Correct answer: C

Rationale: Guilt is a common reaction of parents when their child is diagnosed with glomerulonephritis. Parents often blame themselves for not responding promptly to the child's initial symptoms or feel guilty for not seeking treatment sooner, thinking they could have prevented the development of glomerular damage. While fear of a complicated treatment regimen, anger at the child for hospitalization, and depression about the child not playing sports may be valid concerns, they are generally not as commonly observed as the feeling of guilt among parents in this situation.

3. After an endoscopic procedure with general anesthesia, what is a priority nursing consideration for a patient in the day surgery center?

Correct answer: B

Rationale: After an endoscopic procedure with general anesthesia, the priority nursing consideration is to not offer fluids, food, or any oral intake to the patient. Endoscopies involve passing a tube through the mouth into the esophagus or upper GI. Anesthesia is often given to inactivate the gag reflex, making the patient vulnerable to aspiration. Raising the siderails of the patient's bed is important for safety but not the immediate priority. Checking the patient's temperature may be important but is not the priority immediately after the procedure. Teaching the patient to avoid aspirin or NSAIDS is important for post-procedure care but is not the priority immediately after the endoscopic procedure.

4. The nurse reviews the record of a newborn infant and notes that a diagnosis of esophageal atresia with tracheoesophageal fistula is suspected. The nurse expects to note which most likely sign of this condition documented in the record?

Correct answer: C

Rationale: In esophageal atresia and tracheoesophageal fistula, the esophagus ends before it reaches the stomach, forming a blind pouch, and there is an abnormal connection (fistula) with the trachea. Any child who exhibits the '3 Cs'"?coughing and choking with feedings and unexplained cyanosis"?should be suspected to have tracheoesophageal fistula. Option A, 'Incessant crying,' is not a typical sign of esophageal atresia with tracheoesophageal fistula. Option B, 'Coughing at nighttime,' is not a specific sign associated with this condition. Option D, 'Severe projectile vomiting,' is not a common sign of esophageal atresia with tracheoesophageal fistula.

5. The nurse assesses a patient with chronic obstructive pulmonary disease (COPD) who has been admitted with increasing dyspnea over the last 3 days. Which finding is most important for the nurse to report to the healthcare provider?

Correct answer: A

Rationale: The correct answer is 'Respirations are 36 breaths/minute.' An increased respiratory rate is a crucial sign of respiratory distress in patients with COPD, necessitating immediate interventions like oxygen therapy or medications. The other options are common chronic changes seen in COPD patients. Option B, the 'Anterior-posterior chest ratio is 1:1,' is related to the barrel chest commonly seen in COPD due to hyperinflation. Option C, 'Lung expansion is decreased bilaterally,' is expected in COPD due to air trapping. Option D, 'Hyperresonance to percussion is present,' is typical in COPD patients with increased lung volume and air trapping.

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