CEN Practice Test Questions and Answers 100% Solved
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Course
CEN
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CEN
CEN Practice Test Questions and Answers 100% Solved
Ventricular fibrillation and pulseless ventricular tachycardia are the two rhythms that are
considered to be "shockable" cardiac arrest rhythms. Although asystole and PEA are cardiac
arrest rhythms, they will not respond to electrical shock....
CEN Practice Test Questions and Answers 100% Solved
Ventricular fibrillation and pulseless ventricular tachycardia are the two rhythms that are
considered to be "shockable" cardiac arrest rhythms. Although asystole and PEA are cardiac
arrest rhythms, they will not respond to electrical shock.
When suctioning during a cardiac arrest, suctioning should be limited to which of the
following?
a. Less than 5 seconds
b. Less than 10 seconds
c. Less than 20 seconds
d. Less than 30 seconds Correct Ans-b. Less than 10 seconds
According to the 2010 BLS and ACLS guidelines, suctioning for longer than 10 seconds may
result in pulling too much oxygen out of the airways resulting in hypoxemia.
Possible causes of cardiac arrest include all of the following EXCEPT:
a. Hypervolemia
b. Hypoxia
c. Hypokalemia
d. Tension Pneumothorax Correct Ans-a. Hypervolemia
, CEN Practice Test Questions and Answers 100% Solved
Common causes of cardiac arrest 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).
Correction of these causes can often reverse a cardiac arrest.
You are providing ventilations using a Bag-mask device. Suddenly, you do not see the patient's
chest rise with the ventilation. You reposition the patient to ensure an open airway. When
you attempt to ventilate, you do not see his chest rise. The most likely cause of this is:
a. The bag-mask device is faulty
b. Airway obstruction
c. The patient has suffered an MI
d. Cardiac tamponade Correct Ans-b. Airway obstruction
The most likely cause of the failure of the chest to rise during ventilations is an airway
obstruction. Although a faulty bag-mask device is a possibility, it is unlikely that it would fail
in the middle of providing ventilations.
According to American Heart Association ACLS guidelines, cricoid pressure during intubation:
a. Should be done in all cases.
b. Is no longer recommended.
c. Should only be done on children.
, CEN Practice Test Questions and Answers 100% Solved
d. None of the above. Correct Ans-b. Is no longer recommended.
According to the most current AHA guidelines, cricoid pressure may delay or prevent
placement of an advanced airway so is no longer recommended.
You are providing positive pressure ventilation through an ET tube to a patient in respiratory
distress. Indications that you are ventilating too fast include all of the following EXCEPT:
a. Increasing waveform capnography readings
b. Stomach insufflation
c. Tension pneumothorax
d. Aspiration Correct Ans-a. Increasing waveform capnography readings
Latrogenic effects of hyperventilation through an ET tube include aspiration, stomach
insufflation, and tension pneumothorax. Increasing waveform capnography readings are an
indication of efficient CPR.
Preload refers to:
a. The volume of blood entering the left side of the heart
b. The volume of blood entering the right side of the heart
c. The pressure in the venous system that the heart must overcome to pump the blood
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