Prolonged suctioning of the tracheostomy may cause?

RUHS, Jaipur, M.Sc Nursing Entrance Exam-2019

Medical Surgical Nursing

Easy

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2019

Explanation

Prolonged suctioning removes oxygen from the airway faster than the patient can replace it, leading directly to hypoxia (low blood oxygen).
The procedure can stimulate the vagus nerve located in the trachea, causing a vasovagal response that results in sudden, severe bradycardia (slow heart rate).
The combination of profound hypoxia and severe bradycardia places extreme stress on the heart, which can precipitate dangerous arrhythmias and lead to cardiac arrest.

Option A: Myocarditis and endocarditis are inflammatory conditions of the heart, typically caused by infections, and are not a direct mechanical complication of suctioning.
Option C: While possible if the catheter stimulates the gag reflex (e.g., enters the esophagus), nausea and vomiting are not the primary life-threatening complications of prolonged tracheal suctioning.
Option D: Anorexia, or loss of appetite, is a chronic symptom and is not an acute complication related to the procedure of tracheostomy suctioning.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Complications of Tracheostomy Suctioning as background academic context rather than a clinical decision trigger.
Adhering to the 10-15 second time limit for suctioning is a critical patient safety measure to prevent life-threatening hypoxia and cardiac events.
The nurse's role includes pre-oxygenating the patient before suctioning and continuously monitoring heart rate and oxygen saturation (SpO2) during the procedure to detect adverse reactions immediately.
What if? If a patient's heart rate drops by more than 20 bpm or SpO2 falls below 90% during suctioning, the nurse must immediately stop the procedure, withdraw the catheter, administer 100% oxygen, and notify the provider. This is a medical emergency.

How to Approach the Question

First, identify the keywords in the question: 'prolonged suctioning' and 'tracheostomy'. This points to complications of a specific nursing procedure.
Recall the basic physiology of suctioning. The procedure removes material from the airway, which includes not only mucus but also air/oxygen.
Consider the anatomical structures involved. The trachea is innervated, and stimulation of nerves like the vagus nerve can have systemic effects.
Evaluate each option based on these principles. 'Hypoxia' is a direct consequence of removing air. 'Cardiac arrest' is a known severe outcome linked to both hypoxia and vagal stimulation (bradycardia).
Compare this primary risk to the other options. Myocarditis is infectious, nausea is related to gagging (often incorrect placement), and anorexia is unrelated. This makes hypoxia and cardiac arrest the most direct and severe complications.

Concept Tested & Keywords

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E6 Nursing Fundamentals Potter Perry 12e Part 5 pp. 16-18, 1