Medium NCLEX Respiratory Practice Questions

Preparing for the NCLEX requires a deep understanding of how the body maintains gas exchange and how to intervene when that process fails. These Medium NCLEX Respiratory Practice Questions are designed to test your clinical judgment regarding oxygenation, airway management, and common pulmonary pathologies.

Concept Explanation

Respiratory nursing care focuses on the physiological processes of ventilation, perfusion, and diffusion to ensure adequate cellular oxygenation and carbon dioxide removal. At the medium difficulty level, the NCLEX expects candidates to move beyond simple identification of symptoms and begin prioritizing interventions based on data trends and potential complications. Key concepts include managing oxygenation and acid-base balance, recognizing early signs of respiratory distress (such as restlessness and tachycardia), and understanding the mechanics of chest tubes and mechanical ventilators.

To master these topics, you must be familiar with the anatomy and physiology of the lungs. Nurses must categorize respiratory conditions into obstructive (e.g., Asthma, COPD) or restrictive (e.g., Pneumothorax, Pulmonary Fibrosis) and apply appropriate nursing diagnoses. For instance, when dealing with a patient who has a chest tube, the nurse must monitor for a "tidaling" effect in the water-seal chamber, which indicates the system is functioning correctly as the patient breathes. Understanding these nuances is vital for passing the licensure exam and ensuring patient safety in clinical practice.

Solved Examples

1. Example: ABG Interpretation
   A patient with COPD presents with the following ABG results: pH 7.32, $PaCO_2$ 52 mmHg, $HCO_3^-$ 28 mEq/L. What is the nurse's interpretation?
   1. Identify the pH: 7.32 is low (Acidosis).
   2. Identify the $PaCO_2$: 52 is high (Respiratory cause).
   3. Identify the $HCO_3^-$: 28 is high (Compensatory mechanism).
   4. Solution: Partially compensated respiratory acidosis. The high bicarbonate shows the kidneys are attempting to buffer the excess acid.
2. Example: Chest Tube Troubleshooting
   The nurse notes continuous bubbling in the water-seal chamber of a chest tube drainage system. What is the priority action?
   1. Recall that intermittent bubbling is normal with expiration or coughing.
   2. Recognize that continuous bubbling indicates an air leak.
   3. Solution: Check all connections from the patient to the drainage unit and notify the healthcare provider if the leak persists within the system.
3. Example: Suctioning Technique
   A nurse is preparing to suction a patient with an endotracheal tube. What is the correct sequence?
   1. Pre-oxygenate the patient with 100% $O_2$ for 30-60 seconds.
   2. Insert the catheter without suction until resistance is met.
   3. Apply intermittent suction while rotating the catheter during withdrawal (maximum 10-15 seconds).
   4. Solution: Hyperoxygenation is the most critical step to prevent suction-induced hypoxemia.

Practice Questions

1. A nurse is caring for a patient who underwent a thoracentesis 2 hours ago. Which assessment finding is most concerning and requires immediate notification of the healthcare provider?

2. A patient with an acute asthma exacerbation is receiving a nebulized albuterol treatment. The nurse should monitor for which expected side effect of this medication?

3. A nurse is teaching a patient with chronic obstructive pulmonary disease (COPD) about diaphragmatic breathing. Which instruction should the nurse include?

4. A patient is admitted with a suspected pulmonary embolism (PE). Which diagnostic test is considered the "gold standard" or most definitive for confirming this diagnosis?

5. The nurse is assessing a patient with a chest tube following a lobectomy. The nurse notes that the fluid in the water-seal chamber stops fluctuating when the patient breathes. What is the most likely reason for this occurrence?

6. A patient with pneumonia has a pulse oximetry reading of 88% on room air. The patient is restless and using accessory muscles to breathe. Which oxygen delivery device should the nurse anticipate using first to provide a precise high flow of oxygen?

7. While assessing a patient with tuberculosis (TB) who is taking Rifampin, the patient expresses concern that their urine has turned orange. What is the nurse's best response?

8. A nurse is evaluating the effectiveness of a patient's incentive spirometry use. Which outcome indicates the patient is using the device correctly?

9. A patient is being discharged with a new prescription for a fluticasone metered-dose inhaler (MDI). Which instruction is essential for preventing oral candidiasis?

10. The nurse is caring for a patient on a mechanical ventilator. The "low pressure" alarm sounds. Which action should the nurse take first?

Answers & Explanations

1. Answer: Diminished breath sounds on the affected side. After a thoracentesis, the most significant risk is a pneumothorax. Diminished breath sounds, sudden dyspnea, or asymmetrical chest expansion suggest a collapsed lung.
2. Answer: Tachycardia. Albuterol is a beta-2 agonist that can also stimulate beta-1 receptors in the heart, leading to increased heart rate and tremors.
3. Answer: "Place one hand on your abdomen and the other on your chest; your abdomen should rise more than your chest." Diaphragmatic breathing focuses on using the diaphragm rather than accessory muscles to increase lung expansion.
4. Answer: Computed Tomography Pulmonary Angiography (CTPA). While V/Q scans are used, the CTPA is the preferred definitive imaging for PE. You can find more details on diagnostic imaging at the RadiologyInfo website.
5. Answer: The lung has fully re-expanded or there is a kink in the tubing. Tidaling stops when the lung is back against the chest wall or if there is an obstruction in the system.
6. Answer: Venturi Mask. The Venturi mask is the most accurate device for delivering a specific, titrated concentration of oxygen (FiO2).
7. Answer: "This is a harmless and expected side effect of the medication." Rifampin commonly causes orange discoloration of urine, sweat, and tears.
8. Answer: Sustained maximal inspiration and expansion of the alveoli. The goal of incentive spirometry is to prevent atelectasis by encouraging deep, slow inhalations.
9. Answer: Rinse the mouth with water after each use. Inhaled corticosteroids like fluticasone can suppress local immunity in the mouth, leading to fungal infections if not rinsed away.
10. Answer: Check for a disconnection in the ventilator circuit. Low-pressure alarms usually indicate a leak or disconnection. If the source isn't immediately found, the nurse should manually ventilate the patient with a bag-valve mask. For more on emergency equipment, check our vital signs and monitoring guide.

Quick Quiz

Frequently Asked Questions

What is the difference between a pulse oximetry reading and a PaO2?

Pulse oximetry (SpO2) measures the percentage of hemoglobin saturated with oxygen using infrared light, whereas PaO2 measures the actual partial pressure of oxygen dissolved in the arterial blood via an invasive blood draw. SpO2 is a non-invasive estimate, while PaO2 is a more definitive measurement of oxygenation status.

Why is oxygen therapy used cautiously in patients with COPD?

Some patients with chronic COPD rely on a "hypoxic drive" to breathe because their bodies have become desensitized to high CO2 levels. Providing too much supplemental oxygen can potentially suppress this drive, leading to respiratory depression or arrest.

How do I identify a pneumothorax on a nursing assessment?

A nurse should look for sudden-onset chest pain, shortness of breath, and asymmetrical chest rise. On auscultation, breath sounds will be absent or significantly diminished on the affected side, and percussion may reveal hyperresonance. For further study on physical exams, see our Med-Surg assessment guide.

What is the purpose of the water-seal chamber in a chest tube system?

The water-seal chamber acts as a one-way valve that allows air to exit the pleural space during exhalation but prevents air from being sucked back into the chest during inhalation. This allows the lung to gradually re-expand by restoring negative pressure.

When should a nurse use a non-rebreather mask?

A non-rebreather mask is used for patients requiring high concentrations of oxygen (60-90%) in emergency situations, such as severe respiratory distress or carbon monoxide poisoning. It features one-way valves that prevent the patient from re-breathing exhaled CO2.

For more specialized practice, you might find our Renal or Cardiac practice questions helpful, as these systems often interact with respiratory health. If you are preparing for clinical rotations, using an AI Lecture Notes Enhancer can help organize complex respiratory pathophysiology into concise study sheets.

Enjoyed this article?

Share it with others who might find it helpful.

Share Article