Certified Hyperbaric Technologist Practice Test

What is the best method to defibrillate a patient in a monoplace chamber?

1. Apply shocks through the chamber wall

2. Defibrillate without decompressing

3. Decompress, unload the patient, strip clothing, then defibrillate

4. Wait for assistance and defibrillate later

The correct answer is: Decompress, unload the patient, strip clothing, then defibrillate

The most appropriate method to defibrillate a patient in a monoplace chamber involves decompressing the chamber, unloading the patient, and stripping their clothing before proceeding to defibrillate. This is critical for several reasons. First, monoplace chambers are typically made from materials that may impede the delivery of a defibrillation shock and could also pose a risk of arcing or other hazards when the high-voltage shock is delivered. Defibrillation requires the use of conductive pads placed directly on the patient's skin to ensure effective energy transfer. Stripping the clothing ensures there is no insulating material that could interfere with the shock. Decompressing the chamber is vital because delivering a defibrillation shock while at hyperbaric pressure can lead to complications, both for the patient and the equipment. The increased pressure could also prevent the electrical current from effectively reaching the heart. Defibrillation is a critical intervention for patients experiencing life-threatening cardiac arrhythmias, and it needs to be performed in the safest possible conditions. Therefore, ensuring proper preparation and environment before administering a shock maximizes the chances of a successful outcome.