What is the preferred method of securing a patent airway during CPR?

What is the preferred method of securing a patent airway during CPR?
 
  a. Oropharyngeal airway
  b. Endotracheal tube
  c. Tracheostomy tube
  d. Nasopharyngeal airway

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Q. 2  What is the recommended upper time limit for any intubation attempt performed during CPR?
 
  a. 10 sec
  b. 30 sec
  c. 60 sec
  d. 90 sec

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Q. 3  What is the most common problem with the use of bag-valve-mask resuscitators?
 
  a. Equipment failure
  b. Nosocomial infection
  c. Pulmonary barotrauma
  d. Pulmonary hemorrhage

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Q. 4  Most sudden deaths of cardiac origin are due to which of the following?
 
  a. Cardiac tamponade
  b. Ventricular aneurysm
  c. Mitral stenosis
  d. Cardiac arrhythmias

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Q. 5  During CPR, a properly positioned endotracheal tube can do which of the following?
 
  1. Isolate and protect the lower airway from aspiration.
  2. Permit suctioning of the trachea and main stem bronchi.
  3. Facilitate positive-pressure ventilation and oxygenation.
  4. Provide a route for administration of selected drug agents.
  a. 1, 2, and 3 only
  b. 3 and 4 only
  c. 1, 2, 3, and 4
  d. 1 and 4 only

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Q. 6  How would you estimate the appropriate length for a nasopharyngeal airway?
 
  a. Subtract twice the diameter of the tube from its length.
  b. Measure the distance from the earlobe to the Adam's apple.
  c. Apply the estimating formula: length (cm) = 15 + (age  2).
  d. Measure the distance from the earlobe to the tip of the nose.