ADEX Dental Hygiene Management of Medical Emergencies Questions and Answers — Questions and Answers
Question 1: A patient in the dental chair suddenly becomes pale, and their skin feels cool and clammy. They report feeling dizzy and then lose consciousness for less than a minute. Which of the following is the MOST appropriate immediate action?
- Administer aromatic ammonia inhalant.
- Call 911 immediately.
- Place the patient in a supine position with their feet slightly elevated. (Correct answer)
- Provide a sugary drink as soon as they regain consciousness.
Correct answer: Place the patient in a supine position with their feet slightly elevated.
The patient is exhibiting classic signs of vasovagal syncope (fainting). The immediate priority is to restore adequate blood flow to the brain. Placing the patient in a supine position, with feet slightly elevated (Trendelenburg position), uses gravity to help return blood to the heart and brain, which is the most critical first step.
Question 2: A 50-year-old patient with a known history of Type 1 diabetes begins to act confused, speaks with slurred words, and appears shaky and sweaty. The patient is conscious and able to follow commands. What is the best initial management for this situation?
- Administer an intramuscular injection of glucagon.
- Provide a glass of diet soda.
- Administer 15 grams of a fast-acting carbohydrate, such as juice or glucose gel. (Correct answer)
- Monitor vital signs and wait for symptoms to resolve on their own.
Correct answer: Administer 15 grams of a fast-acting carbohydrate, such as juice or glucose gel.
The patient's symptoms are characteristic of hypoglycemia (low blood sugar). Because the patient is conscious and able to swallow, the correct initial treatment is to provide a readily absorbable source of sugar. The "15-15 rule" is often recommended: provide 15 grams of carbohydrates and recheck blood sugar in 15 minutes. Glucagon is reserved for unconscious patients, and diet soda contains no sugar.
Question 3: Which of the following is the definitive, first-line medication for treating a patient experiencing a severe, life-threatening allergic reaction (anaphylaxis) characterized by respiratory distress and hypotension?
- Oral diphenhydramine (Benadryl)
- Intramuscular epinephrine (Correct answer)
- An albuterol inhaler
- Intravenous corticosteroids
Correct answer: Intramuscular epinephrine
Intramuscular epinephrine is the primary, life-saving medication for anaphylaxis. It acts rapidly to counteract vasodilation and bronchoconstriction, which are the life-threatening components of the reaction. While antihistamines, corticosteroids, and albuterol are used as adjunctive therapies, they do not act fast enough and are not considered first-line treatment.
Question 4: A 62-year-old patient with a history of stable angina complains of substernal chest pain. You stop the procedure and administer one dose of their sublingual nitroglycerin. After 5 minutes, the patient states the pain is unimproved. What is the most critical next step?
- Administer a second and third dose of nitroglycerin before taking further action.
- Assume the patient is experiencing a myocardial infarction and activate emergency medical services (EMS). (Correct answer)
- Have the patient chew a 325 mg aspirin tablet.
- Continue to monitor vital signs for another 10 minutes.
Correct answer: Assume the patient is experiencing a myocardial infarction and activate emergency medical services (EMS).
Chest pain that is not relieved by one dose of nitroglycerin should be treated as a potential myocardial infarction (heart attack). The absolute priority is to activate EMS (call 911) immediately. While administering oxygen or aspirin may be part of the subsequent management protocol, delaying the call for advanced medical care is detrimental.
Question 5: During a routine appointment, a patient suddenly becomes rigid, loses consciousness, and begins to exhibit convulsive movements in their arms and legs. Which of the following represents the MOST appropriate management?
- Place a padded tongue blade in the patient's mouth to prevent them from biting their tongue.
- Attempt to restrain the patient's limbs to prevent injury.
- Clear the area of hazards, protect the patient's head, and time the seizure. (Correct answer)
- Immediately sit the patient upright to improve breathing.
Correct answer: Clear the area of hazards, protect the patient's head, and time the seizure.
During a tonic-clonic seizure, the primary goal is to protect the patient from injury. This involves clearing the area of any sharp or hard objects and placing something soft under their head. Nothing should be placed in the patient's mouth, and they should not be restrained, as these actions can cause injury. The patient should be gently eased to the floor, not sat upright.
Question 6: An anxious 18-year-old patient begins breathing rapidly and complains of tingling in their fingers and feeling lightheaded. The most appropriate initial management is to:
- Administer oxygen via a face mask.
- Have the patient breathe into a paper bag.
- Place the patient in a supine position and elevate their legs.
- Attempt to calm the patient and coach them to slow their breathing rate. (Correct answer)
Correct answer: Attempt to calm the patient and coach them to slow their breathing rate.
The patient is hyperventilating, which is causing an excessive loss of carbon dioxide. The primary treatment is to calm the patient and help them control their breathing rate. Administering oxygen can worsen the respiratory alkalosis. Breathing into a paper bag is no longer recommended due to the risk of significant hypoxia and misdiagnosis.
ADEX Dental Hygiene Management of Medical Emergencies Questions and Answers
A patient in the dental chair suddenly becomes pale, and their skin feels cool and clammy.
They report feeling dizzy and then lose consciousness for less than a minute.
Which of the following is the MOST appropriate immediate action?