Exam questions

Question 1

Gas cylinders are different colours depending upon their content. If the cylinder was coloured blue what would it contain?

Answer 1

Nitrous Oxide.

Question 1

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?

Answer 1

Say it will be alright and carry on.

Question 2

What does MAC stand for?

Answer 2

Minimum Alveolar Concentration.

Question 3

When referring to gases what does MAC relate to?

Answer 3

Potency of the gas.

Question 4

Who has the legal responsibility for checking the inhalation sedation machine?

Answer 4

The treating Dental Clinician.

Question 5

What is the time weighted average (TWA) for staff working with nitrous oxide?

Answer 5

100ppm over an 8 hour time period.

Question 6

What does a half full nitrous oxide cylinder contain?

Answer 6

Gas above a liquid.

Question 7

What does a full oxygen cylinder contain?

Answer 7

Gas.

Question 8

Which structure within the respiratory system are also known as air sacs?

Answer 8

Alveoli.

Question 9

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?

Answer 9

Alveoli.

Question 10

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?

Answer 10

The right lung.

Question 11

There are two lungs situated in the thoracic cavity with the heart. One is larger than the other. Which lung is the smallest?

Answer 11

The left lung.

Question 12

Breathing is an involuntary action and is dependent upon something happening to the body. Which substance drives breathing?

Answer 12

Carbon Dioxide.

Question 13

What are the air passages within the respiratory system lined with?

Answer 13

Cilia.

Question 14

Which lung is higher up?

Answer 14

The right lung

Question 15

Medical terminology can be difficult for patients to understand. Which structure within the respiratory system is also known as the voice box?

Answer 15

The Larynx.

Question 16

Which structure within the respiratory system contains the thyroid cartilage?

Answer 16

The Larynx.

Question 17

Which substance within the respiratory structure is a waste product?

Answer 17

Carbon Dioxide.

Question 18

What are red blood cells also known as?

Answer 18

Erythrocytes.

Question 19

Which cell within blood is responsible for clotting?

Answer 19

Platelets.

Question 20

Which of the pulmonary structures carries deoxygenated blood?

Answer 20

The pulmonary artery.

Question 21

Which valve separates the left atrium from the left ventricle?

Answer 21

Mitral. / Bicuspid

Question 22

In the heart, which structure separates the right side from the left?

Answer 22

Septum.

Question 23

If a patient has a hole in their heart, which part of the heart would be damaged?

Answer 23

Septum.

Question 24

What is the generic name of Anexate?

Answer 24

Flumazenil.

Question 25

When dealing with an unconscious casualty how long should you check if the patient is breathing?

Answer 25

10 seconds.

Question 26

During a cardio pulmonary resuscitation how deep should the chest compressions be?

Answer 26

5-7 cm

Question 27

During a cardio pulmonary resuscitation how often should the pulse be rechecked?

Answer 27

Never

Question 28

What percentage of oxygen does the ambu bag deliver to the patient when attatched to the emergency oxygen supply?

Answer 28

98%

Question 29

What position should an unconscious casualty who is breathing be put in?

Answer 29

Recovery position

Question 30

Which drug is the drug of choice given for acute major anaphylaxis??

Answer 30

Adrenaline 1:1000

Question 31

What is the most common cause of airway obstruction?

Answer 31

Tongue

Question 32

How is an OP airway mesasured?

Answer 32

From the angle of the mandible to the corner of the mouth

Question 33

How much oxygen does expired air contain?

Answer 33

16%

Question 34

What is meant by the term dead space?

Answer 34

The amount of gas left unused in the respiratory tract during repiration

Question 35

If the rescuers efforts fail to inflate the lungs during resuscitation the rescuers firstly..

Answer 35

Reposition the head

Question 36

Ideally, following the removal of an indwelling needle you should apply to the venepuncture site:

Answer 36

A pressure dressing

Question 37

Before IV injection, pressure is applied to the upper arm. At what point should this pressure be released?

Answer 37

Immediately blood is drawn into the syringe

Question 38

Common side effect of iv sedation?

Answer 38

Amnesia

Question 39

Before administering either iv or ihs it is important for the clinician to:

Answer 39

Obtain pt consent

Question 40

What is the maximum acceptable occupational exposure to nitrous oxide for personnel in UK

Answer 40

100ppm

Question 41

What is the half life of Temazepam?

Answer 41

3-13 hours

Question 42

How are IV agents carried to the site of action in the brain?

Answer 42

The plasma

Question 43

What is the main advantage of using diprivan for iv sedation?

Answer 43

It has a rapid elimination & recovery

Question 44

Which drug is administered according to body weight?

Answer 44

Diprivan

Question 45

What is the initial dose of flumazenil given when a patient becomes over sedated with IV benzodiazepine sedation?

Answer 45

200mcg

Question 46

What is meant by the term diffusion hypoxia?

Answer 46

When nitrous oxide occupies space in lungs at the expense of oxygen

Question 47

What size are the cylinders on the IHS machine?

Answer 47

Size E

Question 48

What is the pressure of a full oxygen cylinder?

Answer 48

2000lbs PSI

Question 49

What is the weight of an empty E size nitrous oxide cylinder?

Answer 49

12lbs

Question 50

What is the name of the active metabolite produced by Diazepam?

Answer 50

Desmethyldiazepam

Question 51

What does GABA stand for?

Answer 51

Gamma aminobutyric acid

Question 52

How long is a patient kept in recovery following tx under IV sedation with midazolam?

Answer 52

At least one hour from the time of the last increment

Question 53

What is the MAC of nitrous oxide?

Answer 53

105

Question 54

What year was the poswillo report carried out?

Answer 54

1990

Question 55

What would a patient feel if a drug was introduced into an artery?

Answer 55

Pain radiating down the arm

Question 56

Name the nerve in the on medical aspect of the antecubital fossa?

Answer 56

Median nerve

Question 57

The amount of air that reaches the alveoli during inspiration is?

Answer 57

350ml

Question 58

Trachea has which shaped cartilage in its walls?

Answer 58

C shaped

Question 59

External respiration involves:

Answer 59

Transfer of oxygen n carbon dioxide in the alveoli

Question 60

Inspired air contains how much oxygen?

Answer 60

21%

Question 61

The nerves which reduce the lumen of the blood vessels are called?

Answer 61

Vasoconstrictors

Question 62

What is meant by the mean arterial pressure?

Answer 62

The average pressure pushing blood through the circulatory system?

Question 63

The MDM RA machine safety features include-

Answer 63

Nitrous oxide cut off if oxygen supply fails

Question 64

Bradycardia is..

Answer 64

A slow pulse rate

Question 65

A small flashback of blood during the cannulation period indicated..

Answer 65

The cannula is in the lumen of the vein

Question 66

An over sedated RA patient might exhibit the following..

Answer 66

Anxiety and disorientation

Question 67

Arteries...

Answer 67

Have a thick layer of smooth muscle than a vein