A patient is diagnosed with chest pneumothorax. The on-duty nursing officer anticipates that which test will be ordered by the doctor before chest tube insertion?

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

A chest X-ray is the standard imaging modality to confirm the presence, size, and location of a pneumothorax.
It is a non-invasive, quick, and readily available test that provides essential information for planning chest tube insertion.
The X-ray helps visualize the visceral pleural line and the amount of air in the pleural space, confirming the diagnosis and guiding the procedure.
It also serves as a baseline to assess the effectiveness of the chest tube by comparing it with a post-insertion X-ray.

Option B: A hemoglobin (Hb) test measures blood levels and is not a primary diagnostic tool for pneumothorax, which is air in the pleural space.
Option C: Vital signs are a crucial nursing assessment to monitor a patient's stability, not a diagnostic test ordered by a doctor to confirm a diagnosis.
Option D: Bronchoscopy is an invasive procedure to visualize the inside of the airways (bronchi and trachea), not the pleural space.

Visual 1: Annotated Chest X-ray - An X-ray image like the one provided, with arrows pointing to the collapsed lung, the visceral pleural line, and the air-filled pleural space to help students identify the key features of a pneumothorax.
Visual 2: Diagram - A diagram showing the correct placement of a chest tube for a pneumothorax (typically in the 2nd intercostal space at the mid-clavicular line or the 4th/5th intercostal space at the anterior or mid-axillary line) versus for a hemothorax (lower placement).

Clinical Relevance

Nursing practice connection: Safe nursing care depends on performing Diagnosis and initial management of pneumothorax in the correct sequence, documenting the action clearly, and monitoring for the expected response.
A nurse must be able to anticipate the need for a chest X-ray to confirm pneumothorax and prepare the patient and equipment for a potential chest tube insertion.
Rapid identification and communication of signs of a tension pneumothorax (severe dyspnea, tracheal deviation, hypotension, absent breath sounds) are critical, as this is a medical emergency requiring immediate needle decompression, even before an X-ray can be done.
What if? If the patient were unstable, hypotensive, and had tracheal deviation, the priority would shift from diagnostic X-ray to emergency intervention. The nurse should anticipate immediate needle decompression followed by chest tube insertion, with the X-ray being performed after stabilization.

How to Approach the Question

First, identify the core clinical problem: a patient with a diagnosed pneumothorax needing a chest tube.
Next, analyze the question's focus: what test is anticipated before the procedure?
Evaluate each option based on its purpose. A chest X-ray is a diagnostic imaging test. Hb is a blood test. 'Vital' refers to an assessment, not a test. Bronchoscopy is a procedural investigation of the airways.
Differentiate between a diagnostic test needed to confirm and plan (X-ray) versus a monitoring parameter (vitals) or a test for a different condition (Hb for bleeding, bronchoscopy for airway issues).
Conclude that the most logical and standard test to confirm the pneumothorax and guide the insertion of the chest tube is the chest X-ray.

Concept Tested & Keywords

Concept Tested: Diagnosis and initial management of pneumothorax.
Stem keywords: pneumothorax, chest tube insertion, test, diagnosed
Lead-in keywords: anticipates, which test
Clinical cues: A diagnosis of chest pneumothorax is already made, and the question asks for the next step before intervention.

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Practise the full NORCET 2 - 2021 (shift-1)

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