MCQ's Flashcards
You have greeted your patient who attends for Inhalation Sedation- they have not brought an escort with them. What action does the dental team take?
Say it will be alright and carry on.
Gas cylinders are different colours depending upon their content. If the cylinder was coloured blue what would it contain?
Nitrous Oxide.
What does MAC stand for?
Minimum Alveolar Concentration.
When referring to gases what does MAC relate to?
Potency of the gas.
Who has the legal responsibility for checking the inhalation sedation machine?
The treating Dental Clinician.
What is the time weighted average (TWA) for staff working with nitrous oxide?
100ppm over an 8 hour time period.
What does a half full nitrous oxide cylinder contain?
Gas above a liquid.
What does a full oxygen cylinder contain?
Gas.
Which structure within the respiratory system are also known as air sacs?
Alveoli.
Oxygen and carbon dioxide are exchanged when we breathe. The oxygen is taken into our body and the carbon dioxide is exhaled. Where does gaseous exchange take place?
Alveoli.
You are working with a dentist and a small bracket has been dropped. If the item was lost down the oropharynx, which lung would it most likely go in to?
The right lung.
There are two lungs situated in the thoracic cavity with the heart. One is larger than the other. Which lung is the smallest?
The left lung.
Breathing is an involuntary action and is dependent upon something happening to the body. Which substance drives breathing?
Carbon Dioxide.
What are the air passages within the respiratory system lined with?
Cilia.
Which lung is higher up?
The right lung.
