Anaphylaxis MCQs – Anesthesia

By: Prof. Dr. Fazal Rehman | Last updated: September 13, 2024

  • What is the most common cause of anaphylaxis during anesthesia? a) Antihistamines b) Anesthetic agents c) Analgesics d) Muscle relaxantsAnswer: b) Anesthetic agents
  • Which of the following is a common symptom of anaphylaxis? a) Nausea b) Diarrhea c) Hypotension d) HeadacheAnswer: c) Hypotension
  • Which medication is the first-line treatment for anaphylaxis? a) Epinephrine b) Diphenhydramine c) Corticosteroids d) Sodium bicarbonateAnswer: a) Epinephrine
  • How should epinephrine be administered in cases of anaphylaxis? a) Intramuscularly b) Orally c) Intravenously d) SubcutaneouslyAnswer: a) Intramuscularly
  • What is the recommended dose of epinephrine for adults experiencing anaphylaxis? a) 0.1 mg b) 0.3 mg c) 0.5 mg d) 1 mgAnswer: b) 0.3 mg
  • Which of the following is a key feature of anaphylaxis? a) Gradual onset b) Prolonged duration c) Rapid onset d) Low incidenceAnswer: c) Rapid onset
  • What is the role of corticosteroids in the management of anaphylaxis? a) Immediate relief of symptoms b) Long-term control of inflammation c) Prevention of future reactions d) Decrease histamine levelsAnswer: b) Long-term control of inflammation
  • Which class of drugs is commonly associated with anaphylaxis in anesthesia? a) Benzodiazepines b) Opioids c) Antibiotics d) AntihistaminesAnswer: c) Antibiotics
  • What is a common sign of anaphylaxis in the skin? a) Cyanosis b) Urticaria c) Jaundice d) PallorAnswer: b) Urticaria
  • Which vital sign change is often observed in anaphylaxis? a) Bradycardia b) Hypotension c) Hyperthermia d) HypoxiaAnswer: b) Hypotension
  • Which route of administration is preferred for epinephrine in severe cases of anaphylaxis? a) Intramuscular b) Intravenous c) Oral d) SubcutaneousAnswer: b) Intravenous
  • What is the primary action of epinephrine in treating anaphylaxis? a) Vasodilation b) Bronchoconstriction c) Vasoconstriction d) SedationAnswer: c) Vasoconstriction
  • Which of the following conditions can mimic symptoms of anaphylaxis? a) Asthma b) Hyperthyroidism c) Hypoglycemia d) StrokeAnswer: a) Asthma
  • What is the typical onset time for anaphylaxis after exposure to an allergen? a) 1-2 hours b) 30 minutes to 1 hour c) Immediately to 30 minutes d) 2-4 hoursAnswer: c) Immediately to 30 minutes
  • Which of the following should be monitored closely in a patient with anaphylaxis? a) Blood glucose levels b) Electrolyte levels c) Airway patency d) Renal functionAnswer: c) Airway patency
  • Which of the following is NOT a common trigger for anaphylaxis in anesthesia? a) Latex b) Local anesthetics c) IV fluids d) Non-steroidal anti-inflammatory drugs (NSAIDs)Answer: c) IV fluids
  • Which medication can be used as a secondary treatment after epinephrine in anaphylaxis? a) Loratadine b) Hydrocortisone c) Nitroglycerin d) FurosemideAnswer: b) Hydrocortisone
  • What is the recommended position for a patient experiencing anaphylaxis? a) Prone b) Supine c) Trendelenburg d) Sitting uprightAnswer: c) Trendelenburg
  • What is the most appropriate action if a patient shows signs of anaphylaxis during surgery? a) Continue the procedure and observe b) Administer antihistamines c) Discontinue the triggering agent and administer epinephrine d) Increase the anesthetic depthAnswer: c) Discontinue the triggering agent and administer epinephrine
  • Which of the following is a long-term management strategy for patients with a history of anaphylaxis? a) Regular use of antihistamines b) Avoidance of known allergens c) Routine use of corticosteroids d) Frequent use of epinephrineAnswer: b) Avoidance of known allergens
  • What is a common laboratory finding during anaphylaxis? a) Increased white blood cell count b) Elevated glucose levels c) Decreased red blood cell count d) Increased serum potassiumAnswer: a) Increased white blood cell count
  • Which is NOT a sign of anaphylaxis? a) Fever b) Difficulty breathing c) Swelling of the face d) Abdominal crampingAnswer: a) Fever
  • What is the role of supplemental oxygen in the management of anaphylaxis? a) To treat bronchospasm b) To correct hypoxemia c) To prevent hypotension d) To reduce swellingAnswer: b) To correct hypoxemia
  • Which of the following is a potential complication of anaphylaxis if not treated promptly? a) Pulmonary embolism b) Renal failure c) Cardiac arrest d) Liver failureAnswer: c) Cardiac arrest
  • What is the initial dose of epinephrine for a child experiencing anaphylaxis? a) 0.01 mg/kg b) 0.1 mg/kg c) 0.3 mg/kg d) 0.5 mg/kgAnswer: a) 0.01 mg/kg
  • Which diagnostic test can help confirm anaphylaxis? a) Skin prick test b) Chest X-ray c) Complete blood count (CBC) d) Arterial blood gas (ABG)Answer: a) Skin prick test
  • What is the main goal of treatment in anaphylaxis? a) To increase blood pressure b) To alleviate symptoms of bronchospasm c) To reverse the allergic reaction d) To administer fluidsAnswer: c) To reverse the allergic reaction
  • Which of the following actions should be taken if a patient does not respond to the initial dose of epinephrine? a) Increase the dose of epinephrine b) Administer a different antihistamine c) Start intravenous fluids d) Use bronchodilatorsAnswer: a) Increase the dose of epinephrine
  • Which of the following is a common feature of anaphylactic shock? a) Hypertension b) Bradycardia c) Hypothermia d) HypoxiaAnswer: d) Hypoxia
  • Which type of epinephrine auto-injector is commonly used for emergency anaphylaxis? a) EpiPen b) Ephedrine c) Benadryl d) EpiCardAnswer: a) EpiPen
  • Which of the following is a primary symptom of anaphylaxis? a) Severe abdominal pain b) Rapid onset of rash and swelling c) Gradual onset of muscle pain d) Slow onset of coughAnswer: b) Rapid onset of rash and swelling
  • What is the recommended action if a patient exhibits symptoms of anaphylaxis but is not in a clinical setting? a) Seek immediate medical attention b) Wait and observe symptoms c) Administer oral antihistamines d) Increase fluid intakeAnswer: a) Seek immediate medical attention
  • Which of the following medications is least effective in the acute management of anaphylaxis? a) Epinephrine b) Corticosteroids c) Antihistamines d) VasopressorsAnswer: d) Vasopressors
  • How does anaphylaxis typically affect the cardiovascular system? a) Causes bradycardia b) Results in hypotension c) Leads to tachycardia d) Causes hyperthermiaAnswer: b) Results in hypotension
  • What should be done immediately after administering epinephrine for anaphylaxis? a) Monitor vital signs b) Discharge the patient c) Start intravenous fluids d) Administer additional medicationsAnswer: a) Monitor vital signs
  • Which is a common trigger for anaphylaxis in the perioperative setting? a) Contrast agents b) General anesthetics c) Non-opioid analgesics d) AntihypertensivesAnswer: b) General anesthetics
  • Which patient population is at higher risk for anaphylaxis during anesthesia? a) Older adults b) Pregnant women c) Children d) AthletesAnswer: c) Children
  • What is the primary benefit of administering oxygen during anaphylaxis? a) To decrease airway swelling b) To improve oxygenation c) To reduce fluid retention d) To stabilize blood pressureAnswer: b) To improve oxygenation
  • Which monitoring device is crucial for detecting early signs of anaphylaxis? a) Pulse oximeter b) Blood pressure cuff c) Electrocardiogram (ECG) d) Temperature probeAnswer: a) Pulse oximeter
  • What is a significant long-term management consideration for patients with a history of anaphylaxis? a) Avoidance of known allergens b) Routine use of epinephrine c) Regular use of corticosteroids d) Frequent laboratory testsAnswer: a) Avoidance of known allergens
  • Which of the following is NOT a component of anaphylaxis management? a) Epinephrine b) Supplemental oxygen c) Antihistamines d) AntipyreticsAnswer: d) Antipyretics
  • In which area of the body is epinephrine most commonly administered during anaphylaxis? a) Abdomen b) Thigh c) Forearm d) AbdomenAnswer: b) Thigh
  • What should be avoided in the management of anaphylaxis to prevent exacerbation? a) Administering corticosteroids b) Using vasopressors c) Delaying treatment d) Monitoring vital signsAnswer: c) Delaying treatment
  • Which laboratory test is used to assess the severity of anaphylaxis? a) Serum IgE levels b) Chest X-ray c) Electrolyte panel d) Complete blood count (CBC)Answer: a) Serum IgE levels
  • What is the primary reason for using antihistamines in anaphylaxis? a) To provide immediate relief b) To manage long-term inflammation c) To alleviate secondary symptoms d) To correct electrolyte imbalancesAnswer: c) To alleviate secondary symptoms
  • Which of the following is a common immediate response to anaphylaxis? a) Increased heart rate b) Elevated blood glucose c) Decreased respiratory rate d) Decreased blood pressureAnswer: d) Decreased blood pressure
  • What is the impact of anaphylaxis on the respiratory system? a) Bronchoconstriction b) Hyperventilation c) Reduced airway resistance d) Decreased oxygen consumptionAnswer: a) Bronchoconstriction
  • Which step is critical to prevent anaphylaxis during anesthesia? a) Preoperative assessment of allergies b) Postoperative monitoring c) Routine blood tests d) Avoidance of analgesicsAnswer: a) Preoperative assessment of allergies
  • What should be done if a patient with anaphylaxis shows no improvement after initial treatment? a) Administer a second dose of epinephrine b) Increase the dose of antihistamines c) Administer additional corticosteroids d) Increase fluid infusionAnswer: a) Administer a second dose of epinephrine
  • Which of the following should be included in a patient’s post-anaphylaxis care plan? a) Regular follow-up appointments b) Daily epinephrine use c) Routine use of sedatives d) Avoidance of all medicationsAnswer: a) Regular follow-up appointments
Topic-wise Anesthesia MCQs
  1. Anesthesiology MCQs
  2. Anesthesia Basics:
  3. Anesthesia Agents MCQs:
  4. Airway Management:
  5. Anesthesia Monitoring MCQs – Anesthesia:
  6. Regional Anesthesia MCQs :
  7. Patient Assessment and Optimization:
  8. Anesthesia Delivery Systems MCQs:
  9. Pediatric Anesthesia MCQs :
  10. Obstetric Anesthesia MCQs – Anesthesia:
  11. Anesthesia Complications and Emergencies MCQs:
  12. Post-Anesthesia Care MCQs:
  13. Geriatric Anesthesia:
  14. Ethics and Professionalism in Anesthesia MCQs:
  15. Simulation and Skills Training MCQs :

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