CPR - Certified Paramedic Response Special Resuscitation Circumstances Questions and Answers 1 — Questions and Answers
Question 1: A 34-year-old female who is approximately 30 weeks pregnant collapses in cardiac arrest. While performing high-quality CPR, what is the most critical manual intervention to improve the effectiveness of resuscitation?
- Placing a rolled towel under the patient's right hip.
- Applying continuous cricoid pressure during ventilation.
- Manually displacing the uterus to the patient's left side. (Correct answer)
- Increasing chest compression depth to account for anatomical changes.
Correct answer: Manually displacing the uterus to the patient's left side.
In a visibly pregnant patient (generally after 20 weeks gestation), the gravid uterus can compress the inferior vena cava and aorta, a condition known as aortocaval compression. This severely impedes venous return to the heart and reduces the effectiveness of chest compressions. Manually displacing the uterus to the patient's left is the primary intervention to relieve this pressure and is a critical component of maternal resuscitation.
Question 2: During the resuscitation of a severely hypothermic patient in cardiac arrest with a core temperature of 28°C (82.4°F), which of the following is the most appropriate approach to defibrillation and ACLS medication administration?
- Defibrillation and medications should be withheld entirely until the core temperature is above 35°C (95°F).
- A single defibrillation attempt may be made, and subsequent shocks and IV medications should be withheld until the core temperature is above 30°C (86°F). (Correct answer)
- Standard ACLS algorithms for defibrillation and medication administration should be followed without modification.
- Medications should be administered at twice the standard dose to counteract the effects of the cold.
Correct answer: A single defibrillation attempt may be made, and subsequent shocks and IV medications should be withheld until the core temperature is above 30°C (86°F).
In severe hypothermia (core temperature <30°C or 86°F), the myocardium is less responsive to defibrillation and medications, and drug metabolism is slowed. Current guidelines suggest that it is reasonable to perform an initial defibrillation attempt for a shockable rhythm but to withhold further shocks and ACLS medications until the core temperature has been raised to at least 30°C (86°F). Once above this temperature, medications may be given at longer intervals.
Question 3: You have just pulled an unresponsive, apneic, and pulseless adult from a swimming pool. After ensuring scene safety and activating EMS, what is the most appropriate first step in the resuscitation sequence for this drowning victim?
- Immediately begin cycles of 30 chest compressions and 2 breaths.
- Apply an AED and analyze the cardiac rhythm.
- Perform abdominal thrusts to expel water from the lungs.
- Open the airway and deliver 2 to 5 initial rescue breaths before starting chest compressions. (Correct answer)
Correct answer: Open the airway and deliver 2 to 5 initial rescue breaths before starting chest compressions.
Cardiac arrest in drowning is primarily caused by hypoxia (lack of oxygen). Therefore, restoring oxygenation is the immediate priority. Updated guidelines emphasize opening the airway and providing initial rescue breaths before initiating chest compressions. This differs from standard CPR for a presumed primary cardiac event where the emphasis is on immediate chest compressions.
Question 4: Which of the following is a primary, potentially reversible cause of traumatic cardiac arrest that a paramedic should immediately address with a specific procedural intervention in the field?
- Tension pneumothorax (Correct answer)
- Massive intracranial hemorrhage
- Aortic transection
- Severe abdominal evisceration
Correct answer: Tension pneumothorax
In traumatic cardiac arrest (TCA), the focus is on treating reversible causes, often remembered by mnemonics like HOTT (Hypovolemia, Oxygenation, Tension pneumothorax, Tamponade). A tension pneumothorax is a life-threatening condition that can be rapidly treated in the prehospital setting by performing a needle decompression (thoracostomy), potentially restoring circulation. The other conditions listed are not directly reversible with a specific paramedic procedure in the field.
Question 5: A 28-year-old is found in cardiac arrest with suspected opioid overdose. Bystanders are performing chest compressions. According to AHA guidelines, what is the correct priority of interventions for this patient?
- Administer naloxone immediately via the intranasal route, then begin ventilations.
- Withhold naloxone as it is ineffective once cardiac arrest has occurred.
- Apply the AED and deliver a shock before any other intervention.
- Prioritize high-quality CPR with ventilations and use an AED; administer naloxone without interrupting these core resuscitation efforts. (Correct answer)
Correct answer: Prioritize high-quality CPR with ventilations and use an AED; administer naloxone without interrupting these core resuscitation efforts.
For a patient in cardiac arrest from a suspected opioid overdose, the cornerstone of treatment is high-quality CPR and ventilation to manage the severe hypoxia. While naloxone administration is recommended for suspected opioid overdose, it should not delay or interrupt fundamental BLS and ALS interventions like CPR and defibrillation. The priority is to address the arrest with standard, proven therapies while considering naloxone as a concurrent but secondary action.
Question 6: An avalanche victim has been buried for 40 minutes. Upon extrication, the patient is in asystole and has an airway completely obstructed with snow. According to resuscitation guidelines, which of these findings is the strongest indicator of a poor prognosis where termination of efforts may be considered?
- The duration of burial being greater than 35 minutes.
- The presence of an obstructed airway. (Correct answer)
- The initial rhythm being asystole.
- Evidence of moderate hypothermia.
Correct answer: The presence of an obstructed airway.
In avalanche victims, differentiating between asphyxial and hypothermic cardiac arrest is critical. An airway obstructed by snow indicates the primary cause of arrest was asphyxia. Survival from asphyxial arrest is extremely unlikely after 35-60 minutes of burial. A patent airway, even after a long burial, suggests the arrest may be primarily due to hypothermia, which has a better potential for survival with rewarming. Therefore, the obstructed airway is the most critical negative prognostic factor in this scenario.
CPR - Certified Paramedic Response Special Resuscitation Circumstances Questions and Answers 1
A 34-year-old female who is approximately 30 weeks pregnant collapses in cardiac arrest.
While performing high-quality CPR, what is the most critical manual intervention to improve the effectiveness of resuscitation?