NORCET 3 - 2022 (Shift-2)
Medical & Surgical Nursing
Medium

A patient is diagnosed with right Pneumothorax. Which clinical finding suggest to this diagnosis?

Appeared in: NORCET 3 - 2022 (Shift-2)

Explanation

  • Pneumothorax is defined as air in the pleural space, which breaks the negative pressure seal that keeps the lung inflated against the chest wall.
  • This causes the lung on the affected side (the right side in this case) to partially or completely collapse.
  • A collapsed lung does not allow for air entry or exit during respiration.
  • Therefore, the primary and most definitive auscultatory finding is diminished or absent breath sounds over the area of the collapsed lung.

Why Other Options Were Wrong

  • Option B: Stridor is a high-pitched, wheezing sound caused by disrupted airflow in the upper airway (larynx or trachea). It is a sign of upper airway obstruction, not a pneumothorax, which affects the lung and pleural space.
  • Option C: Tachycardia (a heart rate over 100 bpm) is a non-specific sign of distress. While a patient with a pneumothorax may be tachycardic due to pain, anxiety, or hypoxia, many other conditions also cause tachycardia, so it is not a specific diagnostic indicator.
  • Option D: Hypertension (high blood pressure) is not a characteristic sign of pneumothorax. In fact, a severe, life-threatening tension pneumothorax causes a sharp drop in blood pressure (hypotension) due to compression of the heart and major blood vessels.

Related Visual

Visual explanation — Related Visual
  • Visual 1: Diagram - An illustration comparing a normal lung to a lung with pneumothorax. The visual should clearly show the collapsed lung tissue and the collection of air in the pleural space on the affected side.
  • Visual 2: Chest X-ray - An annotated chest radiograph of a right-sided pneumothorax. Arrows should point to the visceral pleural line (the edge of the collapsed lung) and the radiolucent (dark) area devoid of lung markings, which represents the air in the pleural space.
Clinical Relevance
  • Nursing practice connection: Use the key finding related to Clinical assessment and diagnosis of pneumothorax to guide bedside assessment, documentation, and the next nursing action.
  • A nurse's ability to perform a rapid and accurate respiratory assessment, including auscultation of breath sounds, is critical for the early detection of pneumothorax.
  • Recognizing unilateral absent breath sounds should prompt immediate notification of the physician and preparation for potential interventions like chest tube insertion.
  • What if? If the patient with a right pneumothorax suddenly developed severe respiratory distress, tracheal deviation to the left, and hypotension, the condition has progressed to a tension pneumothorax. This is a medical emergency requiring immediate needle decompression to release the trapped air, even before a chest X-ray can be performed.
How to Approach the Question
  • First, identify the key diagnosis in the question stem: 'right Pneumothorax'.
  • Recall the pathophysiology of a pneumothorax: air enters the pleural space, causing the lung on that side to collapse.
  • Consider the direct physical consequence of a collapsed lung. If the lung isn't inflating, no air will move through it.
  • Evaluate the options based on this understanding. 'Absent of breath sounds on right side' is a direct result of the right lung being collapsed.
  • Systematically eliminate the other options. Stridor is an upper airway sound. Tachycardia is a non-specific sign of distress. Hypertension is the opposite of what is expected in a severe pneumothorax (hypotension).
Concept Tested & Keywords
  • Concept Tested: Clinical assessment and diagnosis of pneumothorax.
  • Stem keywords: Pneumothorax, right, clinical finding, diagnosis
  • Lead-in keywords: suggest
  • Clinical cues: The location 'right' is a key cue, pointing to a unilateral problem that should produce unilateral physical signs.

Question ID

Q8ULQw-In4K9HIV0-L3tZ7

Practise the full NORCET 3 - 2022 (Shift-2)

Attempt every question from this paper in a timed mock, then review the full solution for each one.

More Gas Exchange and Respiratory Function Questions

More NORCET 3 - 2022 (Shift-2) Questions