FREE Certified Emergency Nurse Questions and Answers



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Correction of these causes can frequently reverse a cardiac arrest. These causes are known as the H's and T's and include hypovolemia (NOT hypervolemia), hypoxia, hydrogen ion excess (acidosis), hypo or hyperkalemia, hypothermia, tension pneumothorax, tamponade, toxins, and thrombosis (pulmonary or coronary).

Which of the following should suctioning during a cardiac arrest be restricted to?

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The 2010 BLS and ACLS recommendations state that sucking for more than 10 seconds may draw too much oxygen out of the airways, leading to hypoxemia.

Preload describes:

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The amount of blood that enters the right side of the heart is called preload. The heart's fibers are stretched by this volume before contraction. Atrial pressure is a frequent way to quantify preload.

The American Heart Association's ACLS guidelines state that applying cricoid pressure when intubating should:

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Cricoid pressure is no longer advised in accordance with the most recent AHA recommendations because it may hinder or delay the insertion of an advanced airway.

A patient is receiving CPR from the team. In response to an electrical shock, the beat will be:

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The two rhythms regarded as ""shockable"" cardiac arrest rhythms are ventricular fibrillation and pulseless ventricular tachycardia. As cardiac arrest rhythms, asystole and PEA do not react to electrical shock.

Using a Bag-mask device, you are delivering ventilations. Suddenly, the patient's chest does not lift in response to the ventilation. To maintain an open airway, you must reposition the patient. You don't see his chest rise as you try to ventilate him. This is most likely brought on by:

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An airway blockage is the most likely reason why the chest doesn't raise during ventilations. It is improbable that a defective bag-mask device would malfunction in the middle of providing ventilations, notwithstanding the possibilities.

The patient has an anterior ST-elevation myocardial infarction (STEMI) and is transported to the emergency department. You are evaluating him to determine whether to administer fibrinolytics. The following conditions are a strict no-no for this therapy:

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In general, fibrinolytic therapy is NOT advised for patients whose symptoms started more than 12 hours prior to arrival. Unless a posterior MI is identified, fibrinolytics shouldn't be used if symptoms started more than 24 hours before to arrival. The MI was anterior in this instance.

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