Question

When you are suctioning an adult​ patient, the onset of bradycardia is most likely due​ to:

A. hypercarbia.
B. increased intracranial pressure.
C. stimulation of the vagus nerve.
D. hypoxia.

Answer 1

The onset of bradycardia during suctioning in an adult patient is most likely due to stimulation of the vagus nerve, leading to a decrease in heart rate.

Step-by-step explanation:

When suctioning an adult patient, the onset of bradycardia is most likely due to stimulation of the vagus nerve (option C). The vagus nerve, which is part of the autonomic nervous system, plays a crucial role in regulating heart rate. When suctioning procedure is performed, it can mechanically stimulate the vagus nerve, leading to an increased parasympathetic output, which in turn causes the heart rate to decrease. This is a known reflex that can occur during procedures that involve manipulation of the upper airways or gastrointestinal tract, and it is one of the reasons healthcare providers must be vigilant when performing suctioning.