Dental Emergencies and First-Aid Practice Questions
20 free Dental Emergencies and First-Aid practice questions for the CDA. Tap an option to answer — you get instant feedback, the correct answer, and a detailed explanation for every question.
What is the first action to take when a patient shows signs of syncope during a dental procedure?
- A Administer oxygen immediately
- B Position patient supine, legs raised
- C Give the patient oral glucose
- D Begin cardiopulmonary resuscitation
Correct answer: Position patient supine, legs raised
Placing the patient supine with legs elevated improves blood flow to the brain. This is the primary response for syncope.
A patient experiencing hypoglycemia will most likely exhibit which symptom?
- A Flushed skin
- B Tremors and confusion
- C Slow pulse
- D Elevated blood pressure
Correct answer: Tremors and confusion
Hypoglycemia often presents with shakiness, confusion, sweating, and weakness. Immediate administration of glucose is required.
What is the appropriate first-aid measure for a knocked-out permanent tooth?
- A Scrub the tooth clean with soap and water
- B Place the tooth in milk or saline solution
- C Allow the tooth to dry out before replanting
- D Wrap the tooth in gauze and store at room temperature
Correct answer: Place the tooth in milk or saline solution
Storing the tooth in milk or saline helps preserve periodontal ligament cells. This increases the chance of successful reimplantation.
During an asthmatic attack in the dental chair, the patient should be instructed to use:
- A Epinephrine autoinjector
- B Albuterol inhaler
- C Nitroglycerin tablet
- D Oxygen mask only
Correct answer: Albuterol inhaler
Albuterol is a bronchodilator that rapidly relieves bronchospasm. It is the first-line treatment for asthma attacks.
Which condition is characterized by chest pain that improves with rest and nitroglycerin?
- A Myocardial infarction
- B Angina pectoris
- C Syncope
- D Stroke
Correct answer: Angina pectoris
Angina pectoris is caused by temporary myocardial ischemia and often improves with nitroglycerin. It differs from a heart attack, which does not resolve quickly.
What is the recommended treatment for a patient having a generalized seizure in the operatory?
- A Physically restrain the patient
- B Insert a mouth prop immediately
- C Prevent injury and maintain airway
- D Begin chest compressions
Correct answer: Prevent injury and maintain airway
During a seizure, the priority is preventing injury and ensuring airway patency. Do not attempt to restrain the patient or place objects in the mouth.
Which symptom indicates a possible allergic reaction to dental materials or medications?
- A Elevated blood pressure
- B Localized itching and rash
- C Slow pulse
- D Hypothermia
Correct answer: Localized itching and rash
Hives, itching, and rashes are common early signs of allergic reactions. Early recognition prevents progression to anaphylaxis.
In case of anaphylaxis, the most critical medication to administer is:
- A Diphenhydramine
- B Nitroglycerin
- C Epinephrine
- D Albuterol
Correct answer: Epinephrine
Epinephrine is life-saving in anaphylaxis because it reverses airway swelling and shock. It must be administered immediately.
A patient suddenly becomes unresponsive with no normal breathing. What is the next immediate action?
- A Check for a carotid pulse
- B Begin CPR with chest compressions
- C Give two full rescue breaths
- D Administer oral glucose
Correct answer: Begin CPR with chest compressions
CPR should begin immediately when a patient is unresponsive and not breathing normally. Early compressions improve survival.
Which emergency condition presents with slurred speech, facial drooping, and weakness on one side of the body?
- A Seizure
- B Stroke
- C Hypoglycemia
- D Hyperventilation
Correct answer: Stroke
These symptoms are characteristic of a stroke. Immediate activation of emergency services is crucial.
Hyperventilation during dental treatment is best managed by:
- A Using a paper bag to rebreathe
- B Encouraging controlled breathing
- C Giving oxygen immediately
- D Administering nitroglycerin
Correct answer: Encouraging controlled breathing
The goal is to reduce the respiratory rate and restore normal CO₂ levels. Calm coaching helps normalize breathing.
A patient with angina does not improve after two doses of nitroglycerin. What should be suspected?
- A An anxiety attack
- B Myocardial infarction
- C Low blood sugar
- D A fainting episode
Correct answer: Myocardial infarction
Failure to respond to nitroglycerin suggests a possible heart attack. Emergency medical services must be contacted immediately.
Which sign most strongly suggests airway obstruction in a conscious patient?
- A A weak, ineffective cough
- B High-pitched wheezing
- C Crowing or inability to speak
- D Rapid, shallow breathing
Correct answer: Crowing or inability to speak
Inability to speak or make sound indicates severe airway obstruction. Immediate abdominal thrusts are needed.
What is the appropriate first-aid response to a soft-tissue laceration inside the mouth?
- A Suture immediately
- B Apply direct pressure with sterile gauze
- C Use hydrogen peroxide to clean the wound
- D Leave the wound uncovered
Correct answer: Apply direct pressure with sterile gauze
Direct pressure helps control bleeding. Most minor oral lacerations heal well with simple first-aid measures.
A patient becomes pale, sweaty, and complains of dizziness after standing up too quickly. What condition is most likely?
- A Vasovagal syncope
- B Orthostatic hypotension
- C Angina pectoris
- D Asthma attack
Correct answer: Orthostatic hypotension
Orthostatic hypotension occurs when blood pressure drops on standing. Laying the patient back down restores normal circulation.
Which patient is most at risk for a medical emergency during dental treatment?
- A Healthy adult with no medical history
- B Patient with controlled diabetes
- C Patient who skipped their last meal
- D Young child with no medical conditions
Correct answer: Patient who skipped their last meal
Skipping meals increases the risk of hypoglycemia, especially in diabetic patients. This can lead to fainting or confusion.
If a patient is choking and becomes unconscious, the dental team should immediately:
- A Perform a finger sweep
- B Begin rescue breaths only
- C Begin CPR and recheck the airway
- D Give abdominal thrusts continuously
Correct answer: Begin CPR and recheck the airway
When a choking victim becomes unconscious, CPR should begin. Airway checks occur before giving rescue breaths.
A patient experiencing hyperglycemia may present with:
- A Sweating and shakiness
- B Fruity breath and deep breathing
- C Rapid improvement after glucose
- D Cold, clammy skin
Correct answer: Fruity breath and deep breathing
Hyperglycemia symptoms include fruity breath, dry mouth, and deep breathing. Unlike hypoglycemia, symptoms do not improve with glucose.
What is the correct action when a patient reports chest pain that radiates to the left arm?
- A Have the patient lie flat
- B Give glucose immediately
- C Activate emergency services
- D Provide albuterol inhaler
Correct answer: Activate emergency services
Radiating chest pain may indicate myocardial infarction. Emergency medical assistance is required immediately.
What should be done if a patient in the dental office suffers a nosebleed?
- A Tilt the head back
- B Pinch the nose, tilt head forward
- C Apply heat to the bridge of the nose
- D Have the patient lie down flat
Correct answer: Pinch the nose, tilt head forward
Leaning forward prevents blood from entering the throat. Pinching the nostrils helps control bleeding.