To determine the effectiveness of medications that a patient has received to reduce left ventricular afterload, which hemodynamic parameter will the nurse monitor?

Premature ventricular contractions (PVCs) are abnormal heart rhythms originating from the ventricles. They can be triggered by various factors, including irritation or stimulation of the airway during suctioning.
In this situation, the priority is to ensure adequate oxygenation and ventilation for the patient. Stopping the suctioning procedure and providing ventilatory support with 100% oxygen helps maintain oxygen levels and minimizes further cardiac dysrhythmias.
B. Check the patient's potassium level in (option B) is incorrect because While electrolyte imbalances, including low potassium levels (hypokalemia), can contribute to cardiac dysrhythmias, checking the potassium level is not the immediate priority when PVCs occur during suctioning.
C. Give prescribed PRN antidysrhythmic medications in (option C) is incorrect because: Administering antidysrhythmic medications without further assessment or evaluation may not be appropriate in this situation.
D. Decrease the suction pressure to 80 mm Hg in (option D) is incorrect because: While adjusting suction pressure may help prevent further irritation, it is not the initial priority when PVCs are present during suctioning.
E. Documenting the dysrhythmia in the patient's chart in (option E) is incorrect because: Documentation is important but should not be the initial action when a patient experiences PVCs during suctioning. Patient safety and immediate intervention take precedence.
Therefore, when PVCs occur during suctioning, the nurse should stop the procedure, provide ventilatory support with 100% oxygen, and assess the patient's response to intervention.

A. Auscultate for the presence of bilateral breath sounds.
It's an important check, but it is not the most reliable initial method because breath sounds can sometimes be misleading (for example, sounds may be heard in the stomach or transmitted incorrectly).

B. Use an end-tidal CO₂ monitor to check for placement in the trachea.
It's the correct answer. Continuous waveform capnography or end-tidal CO₂ detection is the most reliable and immediate method to confirm that the endotracheal tube is in the trachea and not in the esophagus. Presence of CO₂ indicates effective airway placement.

C. Observe the chest for symmetrical movement with ventilation.
Chest rise is helpful, but it is not specificboth esophageal and tracheal intubation may show chest movement.

D. Obtain a portable chest radiograph to check tube placement.
It's the gold standard for final confirmation, but it is not the initial bedside method because it takes time.