Which intervention or interventions would have the MOST positive impact on the cardiac arrest patient's outcome? -answer- Early CPR and defibrillation The AED gives "no shock" message to a patient who is in cardiac arrest. You should: -answer- Resume chest compressions What is the maximum amount of time that should be spent checking for spontaneous breathing in an unresponsive child? -answer- 10 seconds When performing CPR on an adult, you should compress the chest to a depth of at a rate of . - answer- 2.0-2.4 in, 100-150BPM What is the appropriate compression to ventilation ratio for adult two-rescuer CPR? -answer- 30:2 When checking for a pulse in an infant, which artery should you palpate? -answer- Brachial When performing CPR on an adult or child, you should reassess the patient for return of respirations/circulation every minutes. -answer- 2 What is the preferred method of removing a foreign body in an unresponsive child? -answer- Chest compressions Cardiogenic shock is caused by: -answer- Inadequate function of the heart muscle Pericardial effusion -answer- Collection of fluid between the pericardial sac and the myocardium Cardiac tamponade -answer- Occurs when blood leaks into the space between the pericardium and the pericardial sac Signs and symptoms of cardiac tamponade: -answer- Beck triad: the presence of jugular vein distention, muffled heart sounds, and a narrowing pulse pressure where the systolic and diastolic blood pressures start to merge. Signs of cardiogenic shock: -answer- -Skin may be cool, clammy, and ashen -High BP -Rapid, shallow breathing -Weak, irregular pulse