ATI RN
NCLEX Questions on Oxygenation and Perfusion Questions
Question 1 of 5
Which of the following is the correct ratio of chest compressions to breaths as per NRP?
Correct Answer: B
Rationale: The Neonatal Resuscitation Program (NRP) recommends a 3:1 compression-to-ventilation ratio for newborns.
Question 2 of 5
What is the action of codeine when used to treat a cough?
Correct Answer: B
Rationale: Codeine acts as a cough suppressant by reducing the cough reflex in the brain.
Question 3 of 5
A nurse is caring for a client who is receiving supplemental oxygen for hypoxia. The nurse should identify which of the following can cause hypoxia?
Correct Answer: B
Rationale: The correct answer is B: Smoke inhalation. Smoke inhalation can cause hypoxia by replacing oxygen in the lungs with harmful gases, leading to a decreased oxygen supply to the body tissues. This can result in tissue damage and impaired cellular function. Diabetic ketoacidosis (choice A) is a metabolic condition characterized by high blood sugar levels, not directly related to hypoxia. Administration of a stimulant medication (choice C) can increase heart rate and blood pressure but does not directly cause hypoxia. Right-sided heart failure (choice D) can lead to fluid accumulation in the body, causing symptoms like edema, but it does not directly cause hypoxia.
Question 4 of 5
A nurse caring for a patient with COPD knows that which oxygen delivery device is most appropriate?
Correct Answer: C
Rationale: The correct answer is C: Partial non-rebreather mask. This device provides a higher concentration of oxygen compared to a nasal cannula or simple face mask, which is crucial for COPD patients who often have impaired gas exchange. The non-rebreather mask (choice D) is not appropriate as it can lead to CO2 retention in COPD patients. The nasal cannula (choice A) and simple face mask (choice B) do not provide as high an oxygen concentration as the partial non-rebreather mask, making them less suitable for COPD patients who require higher oxygen levels.
Question 5 of 5
A nurse is teaching a client who has a tracheostomy about suctioning. Which of the following instructions should the nurse include?
Correct Answer: A
Rationale: The correct answer is A: Suction the tracheostomy for 15 seconds at a time. This instruction is appropriate because prolonged suctioning can lead to tissue damage and hypoxia. Here's a step-by-step rationale: 1. Suctioning for 15 seconds helps prevent hypoxia and mucosal damage. 2. Longer suctioning time can cause trauma to the tracheal mucosa. 3. Adequate oxygenation is crucial during suctioning. 4. Regular breaks between suction passes allow for reoxygenation. Other choices are incorrect: B: Sterile water is not recommended for cleaning the catheter as it may introduce infection. C: Inserting the catheter until resistance is met can cause damage to the trachea. D: Suctioning every hour is not necessary and can lead to potential harm.