While performing endotracheal suction in an adult, you will ensure that you:

GMCH - 2016

Medical & Surgical Nursing

Easy

Appeared in: GMCH - 2016

Explanation

The standard of care for endotracheal suctioning is to limit each suction pass to a maximum of 10 to 15 seconds.
This duration is a critical safety measure to minimize the risk of suction-induced hypoxemia (a drop in blood oxygen levels).
Prolonged suctioning removes oxygen along with secretions, which can lead to serious complications like cardiac arrhythmias and desaturation.
Limiting the time helps balance effective secretion removal with patient safety.

Option A: Applying suction for 20-30 seconds is too long and significantly increases the risk of complications such as severe hypoxemia, bradycardia, and trauma to the tracheal mucosa.
Option C: A suction pressure of 40-60 mm Hg is generally too low to effectively clear secretions in an adult patient. This pressure range is more appropriate for neonates.
Option D: A suction pressure of 180-200 mm Hg is excessively high and dangerous. It can cause significant trauma to the tracheal lining, leading to bleeding, edema, and atelectasis.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Safe technique for endotracheal suctioning in adults as background academic context rather than a clinical decision trigger.
Endotracheal suctioning is a high-risk procedure. Adhering to the 10-15 second time limit is a fundamental nursing responsibility to prevent iatrogenic (procedure-induced) harm.
Nurses must continuously monitor the patient's heart rate, oxygen saturation (SpO2), and general condition during the procedure. If the SpO2 drops significantly or the heart rate changes by more than 20 beats/min, the procedure must be stopped immediately.
What if the patient's secretions are extremely thick and tenacious? The nurse should not increase the suction duration. Instead, they should ensure adequate patient hydration, consider instilling sterile normal saline (if per institutional policy), and ensure the suction pressure is at the appropriate upper limit (e.g., 120-150 mmHg), while still limiting each pass to 10-15 seconds.

How to Approach the Question

First, identify the core of the question: it asks for the correct and safe technique for endotracheal suctioning in an adult.
This is a knowledge-based question requiring recall of standard nursing procedures and safety protocols.
Evaluate each option based on established guidelines for suctioning.
Option A suggests a duration of 20-30 seconds. Recall that prolonged suctioning is dangerous. This is likely incorrect.
Option B suggests a duration of 10-15 seconds. This aligns with the standard recommended time limit to prevent hypoxia.
Options C and D relate to suction pressure. Recall the typical adult range (80-150 mm Hg). Option C (40-60 mm Hg) is too low, and Option D (180-200 mm Hg) is too high.

Concept Tested & Keywords

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