14 Medical Emergencies
Multiple choice questions
1. A 50-year-old female patient with a medical condition starts to feel unwell during an amalgam filling procedure and is given glucagon by the dentist. Which one of the following medical emergencies is the patient experiencing?
(a) Anaphylactic shock
(b) Angina attack
(c) Asthma attack
(d) Diabetic hypoglycaemia
(e) Vasovagal syncope
2. Many dental workplaces now have automated external defibrillators (AEDs) on the premises to assist with the recognition and treatment of some medical emergencies. Which one of the following is an event for which the AED can be used?
(a) Angina
(b) Arrhythmia
(c) Asystole
(d) Valvular defect
(e) Ventricular fibrillation
3. One of the first aid events that the dental team should be able to manage effectively is a scald. Which one of the following is the most likely cause of this injury?
(a) Corrosive chemical
(b) Fire
(c) Steam
(d) Toxic chemical
(e) X-rays
4. A 20-year-old male is undergoing the first stage of endodontic treatment on the upper right central incisor. While the local anaesthetic is being given the patient becomes pale, sweaty and distressed. Which one of the following medical emergencies is the patient experiencing?
(a) Anaphylactic shock
(b) Angina attack
(c) Asthma attack
(d) Diabetic hypoglycaemia
(e) Vasovagal syncope
5. All members of the dental team have to be regularly trained and certificated in the recognition and handling of medical emergencies. Which one of the following is the current sequence of actions to follow in the event of a medical emergency?
(a) ABC
(b) BLS
(c) CPR
(d) DRABC
(e) DRSABC
6. When a medical emergency occurs, the life of the casualty may depend on the correct recognition of the cause of the emergency. This is usually achieved by identifying the signs and symptoms present. Which one of the following is a sign rather than a symptom?
(a) Dizziness
(b) Drowsiness
(c) Nausea
(d) Pain
(e) Skin colour
7. Every dental workplace must hold an emergency drugs box, with a recommended list of contents to be used in the event of a medical emergency on the premises. Which one of the following medications must be administered by injection rather than orally?
(a) Aspirin
(b) Dextrose
(c) Glyceryl trinitrate
(d) Hydrocortisone
(e) Salbutamol
8. When administering basic life support, the rescuer needs to perform chest compressions at a rate and depth that is adequate to artificially circulate the casualty’s blood. Which one of the following rates of compression is required to achieve adequate circulation?
(a) 15 per minute
(b) 30 per minute
(c) 50 per minute
(d) 100 per minute
(e) 150 per minute
9. When assessing the level of responsiveness of a casualty during a medical emergency, the scale that determines the level of consciousness of the casualty is usually referred to as ‘AVPU’. Which one of the following is the meaning of ‘A’ in this scale?
(a) Airway
(b) Alert
(c) Automatic
(d) Awake
(e) Away
10. All members of the dental team should be able to recognise and manage medical emergencies, not just to support life but also to give first aid treatment when necessary. Which one of the following actions should be taken in the event of an arterial bleed from the arm?
(a) Apply a tourniquet for 1 hour
(b) Apply direct pressure
(c) Clean the wound
(d) Keep the limb level with the heart
(e) Remove any foreign object
11. When a patient experiences an angina attack, the recommended emergency course of action includes administering glyceryl trinitrate (GTN) spray beneath the tongue. Which one of the following is the reason why this medicine is administered in this way?
(a) Avoids chewing a tablet
(b) Avoids sugar on the teeth
(c) Avoids tasting the medicine
(d) Fast circulatory absorption
(e) Prevents tooth staining
12. Various chemicals and materials used in dentistry are considered poisonous if they are ingested. In the event of a casualty being poisoned in the dental surgery, which one of the following sources provides advice on the first aid treatment required?
(a) Accident book
(b) British National Formulary
(c) COSHH file
(d) Local Rules
(e) RIDDOR booklet
13. If a casualty is electrocuted by a faulty piece of equipment on the dental premises, it can result in complete loss of the heart beat, as the normal electrical conduction of the heart is deranged. Which one of the following first aid treatments would not be required for an electrocuted casualty?
(a) Carry out BLS
(b) Defibrillation
(c) Minimise clinical shock
(d) Remove from the electrical supply
(e) Treat any burns
14. Many patients who attend the dental surgery for treatment are anxious and wary of experiencing pain. Some become so anxious that they begin to hyperventilate and induce a panic attack. Which one of the following actions should be taken by the rescuer during an attack?
(a) Administer oxygen
(b) Allow rebreathing
(c) Begin abdominal thrusts
(d) Begin basic life support
(e) Clear the airway
15. A 55-year-old patient attends the dental surgery for the extraction of a grossly carious molar tooth, but begins to feel unwell while the local anaesthetic is being administered. The dentist gives the patient an aspirin tablet to chew. Which one of the following medical emergencies is the patient experiencing?
(a) Anaphylaxis
(b) Asthma attack
(c) Hypoglycaemic episode
(d) Myocardial infarction
(e) Vasovagal syncope
16. When administering basic life support the rescuer needs to perform chest compressions and rescue breaths in a set ratio, or algorithm. Which one of the following is the current algorithm of breaths to compressions?
(a) 1 : 5
(b) 1 : 15
(c) 1 : 30
(d) 2 : 15
(e) 2 : 30