BIOL30 Air Methods Critical Care Practice
Questions with Answers & Rationales
1. What is the first priority in managing a critically ill patient?
A. Circulation
B. Disability
C. Airway
D. Exposure
Answer: C. Airway
Rationale: Airway management is the first step in the ABCDE approach
because oxygen cannot reach the lungs if the airway is compromised.
2. Which oxygen delivery device provides the highest concentration of oxygen
without intubation?
A. Nasal cannula
B. Simple face mask
C. Non-rebreather mask
D. Venturi mask
Answer: C. Non-rebreather mask
Rationale: A non-rebreather mask can deliver up to 90–95% oxygen when
properly fitted.
3. Normal adult respiratory rate is:
A. 8–12 breaths/min B. 12–20 breaths/min C. 20–30 breaths/min D. 30–40
breaths/min
Answer: B. 12–20 breaths/min
4. A patient with a GCS score of 7 should generally:
A. Be discharged B. Receive oral fluids C. Have airway protection considered
D. Be placed in Trendelenburg position
Answer: C. Have airway protection considered
,Rationale: GCS ≤8 suggests inability to protect the airway.
5. Which rhythm requires immediate defibrillation?
A. Asystole B. Ventricular fibrillation C. Sinus tachycardia D. First-degree AV
block
Answer: B. Ventricular fibrillation
6. The normal oxygen saturation for most adults is:
A. 75–80% B. 80–85% C. 90–94% D. 95–100%
Answer: D. 95–100%
7. Which medication is commonly used during rapid sequence intubation as a
sedative?
A. Furosemide B. Ketamine C. Aspirin D. Atropine
Answer: B. Ketamine
8. What is the most common cause of shock in trauma patients?
A. Cardiogenic shock B. Septic shock C. Hypovolemic shock D. Neurogenic
shock
Answer: C. Hypovolemic shock
9. Normal adult systolic blood pressure is approximately:
A. 60–80 mmHg B. 80–90 mmHg C. 90–120 mmHg D. 150–180 mmHg
Answer: C. 90–120 mmHg
10. Tension pneumothorax is treated with:
A. Chest compressions B. Needle decompression C. Oral airway D.
Defibrillation
Answer: B. Needle decompression
11. Which electrolyte abnormality commonly causes cardiac arrhythmias?
A. Hyperkalemia B. Low glucose C. High calcium only D. Elevated hemoglobin
Answer: A. Hyperkalemia
12. The Glasgow Coma Scale assesses:
, A. Respiratory status B. Neurological function C. Renal function D. Cardiac
output
Answer: B. Neurological function
13. What is the compression-to-ventilation ratio for one-rescuer adult CPR?
A. 15:2 B. 20:2 C. 30:2 D. 50:2
Answer: C. 30:2
14. Which finding suggests increased intracranial pressure?
A. Bradycardia and hypertension B. Tachycardia and hypotension C. Fever
only D. Polyuria
Answer: A. Bradycardia and hypertension
15. Which blood product carries the highest concentration of red blood cells?
A. Platelets B. Fresh frozen plasma C. Packed red blood cells D.
Cryoprecipitate
Answer: C. Packed red blood cells
16. What does PEEP stand for?
A. Positive End-Expiratory Pressure B. Pulmonary End Expiratory Perfusion C.
Pressure Equalization Exchange Process D. Pulmonary Expiratory Exercise
Pressure
Answer: A. Positive End-Expiratory Pressure
17. A pulse oximeter measures:
A. Blood pressure B. Cardiac output C. Oxygen saturation D. Hemoglobin
concentration
Answer: C. Oxygen saturation
18. Which condition is characterized by widespread infection and organ
dysfunction?
A. Asthma B. Sepsis C. Angina D. COPD
Answer: B. Sepsis
19. The antidote for opioid overdose is:
Questions with Answers & Rationales
1. What is the first priority in managing a critically ill patient?
A. Circulation
B. Disability
C. Airway
D. Exposure
Answer: C. Airway
Rationale: Airway management is the first step in the ABCDE approach
because oxygen cannot reach the lungs if the airway is compromised.
2. Which oxygen delivery device provides the highest concentration of oxygen
without intubation?
A. Nasal cannula
B. Simple face mask
C. Non-rebreather mask
D. Venturi mask
Answer: C. Non-rebreather mask
Rationale: A non-rebreather mask can deliver up to 90–95% oxygen when
properly fitted.
3. Normal adult respiratory rate is:
A. 8–12 breaths/min B. 12–20 breaths/min C. 20–30 breaths/min D. 30–40
breaths/min
Answer: B. 12–20 breaths/min
4. A patient with a GCS score of 7 should generally:
A. Be discharged B. Receive oral fluids C. Have airway protection considered
D. Be placed in Trendelenburg position
Answer: C. Have airway protection considered
,Rationale: GCS ≤8 suggests inability to protect the airway.
5. Which rhythm requires immediate defibrillation?
A. Asystole B. Ventricular fibrillation C. Sinus tachycardia D. First-degree AV
block
Answer: B. Ventricular fibrillation
6. The normal oxygen saturation for most adults is:
A. 75–80% B. 80–85% C. 90–94% D. 95–100%
Answer: D. 95–100%
7. Which medication is commonly used during rapid sequence intubation as a
sedative?
A. Furosemide B. Ketamine C. Aspirin D. Atropine
Answer: B. Ketamine
8. What is the most common cause of shock in trauma patients?
A. Cardiogenic shock B. Septic shock C. Hypovolemic shock D. Neurogenic
shock
Answer: C. Hypovolemic shock
9. Normal adult systolic blood pressure is approximately:
A. 60–80 mmHg B. 80–90 mmHg C. 90–120 mmHg D. 150–180 mmHg
Answer: C. 90–120 mmHg
10. Tension pneumothorax is treated with:
A. Chest compressions B. Needle decompression C. Oral airway D.
Defibrillation
Answer: B. Needle decompression
11. Which electrolyte abnormality commonly causes cardiac arrhythmias?
A. Hyperkalemia B. Low glucose C. High calcium only D. Elevated hemoglobin
Answer: A. Hyperkalemia
12. The Glasgow Coma Scale assesses:
, A. Respiratory status B. Neurological function C. Renal function D. Cardiac
output
Answer: B. Neurological function
13. What is the compression-to-ventilation ratio for one-rescuer adult CPR?
A. 15:2 B. 20:2 C. 30:2 D. 50:2
Answer: C. 30:2
14. Which finding suggests increased intracranial pressure?
A. Bradycardia and hypertension B. Tachycardia and hypotension C. Fever
only D. Polyuria
Answer: A. Bradycardia and hypertension
15. Which blood product carries the highest concentration of red blood cells?
A. Platelets B. Fresh frozen plasma C. Packed red blood cells D.
Cryoprecipitate
Answer: C. Packed red blood cells
16. What does PEEP stand for?
A. Positive End-Expiratory Pressure B. Pulmonary End Expiratory Perfusion C.
Pressure Equalization Exchange Process D. Pulmonary Expiratory Exercise
Pressure
Answer: A. Positive End-Expiratory Pressure
17. A pulse oximeter measures:
A. Blood pressure B. Cardiac output C. Oxygen saturation D. Hemoglobin
concentration
Answer: C. Oxygen saturation
18. Which condition is characterized by widespread infection and organ
dysfunction?
A. Asthma B. Sepsis C. Angina D. COPD
Answer: B. Sepsis
19. The antidote for opioid overdose is:
