Advanced Trauma Life Support (ATLS) Practice
Exam & Study Guide 2026/2027
Overview: This comprehensive study guide covers core Advanced Trauma Life Support
(ATLS) principles, emergency management algorithms, trauma scoring, surgical
interventions, airway management, and diagnostic protocols. Designed for medical
professionals, this resource features 150 high-yield clinical questions structured for
optimal retention.
1. Airway & Ventilation
1. What is the first priority in the treatment of an unconscious trauma patient?
• Answer: Checking the pulse (and securing the airway).
• Explanation: Rapid assessment of circulation and airway patency takes absolute
precedence in initial life support protocols to prevent immediate hypoxic arrest.
2. What is the next step in the assessment of a traumatic patient after the airway is
established?
• Answer: Breathing.
• Explanation: Following the ABCDE paradigm, once airway patency is assured,
verification of adequate ventilation and oxygenation (Breathing) is mandatory.
3. Prior to tracheobronchial suctioning, what should the patient receive?
• Answer: $100\%$ oxygen prior to suctioning.
, • Explanation: Pre-oxygenation mitigates procedural hypoxia and prevents
dangerous desaturation events during airway manipulation.
4. What is the most common reason for the chest not to rise with each breath
during CPR?
• Answer: The airway is not clear.
• Explanation: Obstruction by the tongue, foreign bodies, or improper head-
tilt/chin-lift maneuvers prevents effective ventilation delivery.
5. Which of the following is no longer indicated for routine treatment of shock
patients?
• Answer: Pneumatic anti-shock garment (PASG).
• Explanation: Modern ATLS guidelines advise against routine PASG use due to
risks of compromising ventilation, increasing bleeding, and causing sudden
afterload spikes.
2. Shock & Fluid Resuscitation
6. Class I hemorrhage indicates what percentage of blood loss?
• Answer: $10\%$ (up to $15\%$).
• Explanation: Class I hemorrhage presents with minimal clinical symptoms;
compensatory mechanisms maintain normal blood pressure and heart rate.
, 7. What is the first parameter to change in patients with hypovolemic shock?
• Answer: Pulse rate.
• Explanation: Tachycardia is the earliest compensatory sign of blood loss,
appearing before any significant drop in systolic blood pressure.
8. For pediatric patients, what volume of fluid resuscitation should be given initially
in the setting of shock?
• Answer: $10$ to $20\text{ mL/kg}$ of Ringers lactate.
• Explanation: Initial fluid boluses in pediatric trauma are weight-based
crystalloids to restore intravascular volume safely without causing acute fluid
overload.
9. Which of the following is the best indicator of adequate shock resuscitation?
• Answer: Urine output.
• Explanation: End-organ perfusion is best monitored via hourly urine output
targets ($0.5\text{ mL/kg/hr}$ in adults, $1\text{ mL/kg/hr}$ in infants).
10. What intravenous fluid is to be given with blood products?
• Answer: Normal saline ($0.9\%$ NaCl).
Exam & Study Guide 2026/2027
Overview: This comprehensive study guide covers core Advanced Trauma Life Support
(ATLS) principles, emergency management algorithms, trauma scoring, surgical
interventions, airway management, and diagnostic protocols. Designed for medical
professionals, this resource features 150 high-yield clinical questions structured for
optimal retention.
1. Airway & Ventilation
1. What is the first priority in the treatment of an unconscious trauma patient?
• Answer: Checking the pulse (and securing the airway).
• Explanation: Rapid assessment of circulation and airway patency takes absolute
precedence in initial life support protocols to prevent immediate hypoxic arrest.
2. What is the next step in the assessment of a traumatic patient after the airway is
established?
• Answer: Breathing.
• Explanation: Following the ABCDE paradigm, once airway patency is assured,
verification of adequate ventilation and oxygenation (Breathing) is mandatory.
3. Prior to tracheobronchial suctioning, what should the patient receive?
• Answer: $100\%$ oxygen prior to suctioning.
, • Explanation: Pre-oxygenation mitigates procedural hypoxia and prevents
dangerous desaturation events during airway manipulation.
4. What is the most common reason for the chest not to rise with each breath
during CPR?
• Answer: The airway is not clear.
• Explanation: Obstruction by the tongue, foreign bodies, or improper head-
tilt/chin-lift maneuvers prevents effective ventilation delivery.
5. Which of the following is no longer indicated for routine treatment of shock
patients?
• Answer: Pneumatic anti-shock garment (PASG).
• Explanation: Modern ATLS guidelines advise against routine PASG use due to
risks of compromising ventilation, increasing bleeding, and causing sudden
afterload spikes.
2. Shock & Fluid Resuscitation
6. Class I hemorrhage indicates what percentage of blood loss?
• Answer: $10\%$ (up to $15\%$).
• Explanation: Class I hemorrhage presents with minimal clinical symptoms;
compensatory mechanisms maintain normal blood pressure and heart rate.
, 7. What is the first parameter to change in patients with hypovolemic shock?
• Answer: Pulse rate.
• Explanation: Tachycardia is the earliest compensatory sign of blood loss,
appearing before any significant drop in systolic blood pressure.
8. For pediatric patients, what volume of fluid resuscitation should be given initially
in the setting of shock?
• Answer: $10$ to $20\text{ mL/kg}$ of Ringers lactate.
• Explanation: Initial fluid boluses in pediatric trauma are weight-based
crystalloids to restore intravascular volume safely without causing acute fluid
overload.
9. Which of the following is the best indicator of adequate shock resuscitation?
• Answer: Urine output.
• Explanation: End-organ perfusion is best monitored via hourly urine output
targets ($0.5\text{ mL/kg/hr}$ in adults, $1\text{ mL/kg/hr}$ in infants).
10. What intravenous fluid is to be given with blood products?
• Answer: Normal saline ($0.9\%$ NaCl).
