DOH Respiratory Nursing Practice Questions
What this topic covers
Oxygen therapy, asthma and COPD, pneumonia, pulmonary embolism, chest drains, airway management and ABG interpretation.
Free DOH respiratory nursing questions
- Rhonchi
- Wheeze
- Pleural friction rub
- Coarse crackles
Show answer and rationale
Answer: C. Pleural friction rub
A pleural friction rub is a grating sound caused by inflamed pleural surfaces rubbing together, often with pleuritic pain. Rhonchi and coarse crackles usually change or clear after coughing.
Reference: Potter & Perry – respiratory assessment
- Stand if possible, take a deep breath, blow out as hard and fast as possible, and record the best of three attempts
- Sit slouched, breathe normally into the meter and record the first reading
- Blow slowly and steadily for as long as possible, and record the average of three attempts
- Take the reading only after using a reliever inhaler
Show answer and rationale
Answer: A. Stand if possible, take a deep breath, blow out as hard and fast as possible, and record the best of three attempts
Peak flow is measured with a maximal, fast exhalation after a full breath, ideally standing, repeated three times with the highest value recorded. It measures forced expiration, not a slow sustained breath.
Reference: Potter & Perry – peak flow monitoring
- A spare tracheostomy tube of the same size and one size smaller, with an obturator
- A nasogastric tube
- An incentive spirometer only
- A urinary catheter kit
Show answer and rationale
Answer: A. A spare tracheostomy tube of the same size and one size smaller, with an obturator
Spare tubes (same size and one smaller) and the obturator must be at the bedside for emergency replacement if the tube is dislodged. Suction and oxygen equipment should also be available.
Reference: Lewis Medical-Surgical Nursing – tracheostomy care
- Remove the old ties before holding the tube, then apply new ties
- Secure the new ties before removing the old ones, or have an assistant hold the tube
- Tie the new ties as tightly as possible
- Change the ties only when they come loose
Show answer and rationale
Answer: B. Secure the new ties before removing the old ones, or have an assistant hold the tube
Keeping the tube secured at all times prevents accidental decannulation. Ties should allow one finger to fit underneath, avoiding pressure damage while keeping the tube secure.
Reference: Potter & Perry – tracheostomy care
- 4.7–6.0 kPa (35–45 mmHg)
- 2.0–3.5 kPa (15–26 mmHg)
- 8.0–10.0 kPa (60–75 mmHg)
- 10.5–13.5 kPa (80–100 mmHg)
Show answer and rationale
Answer: A. 4.7–6.0 kPa (35–45 mmHg)
Normal PaCO2 is about 4.7–6.0 kPa (35–45 mmHg). 10.5–13.5 kPa (80–100 mmHg) is the normal range for PaO2.
Reference: Lewis Medical-Surgical Nursing – arterial blood gases
Questions are written with AI assistance. About 10% (150+) have been reviewed by a licensed nurse so far, and more are reviewed every month. Practice questions are for study only and may contain mistakes; verify with official study guides from your destination country. Report a question
Study tip
Early hypoxia shows as restlessness and tachycardia; cyanosis is a late sign. Airway problems come first in priority questions.
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