Which of the Following Are Indications for Capnography

Multiple Choice

Which of the following are indications for capnography?
1) Evaluating the response to therapies affecting ventilation/perfusion ratio ( ) relationships
2) Determining the position of an artificial airway (trachea vs. esophagus)
3) Assessing a patient's readiness for weaning from ventilatory support
4) Monitoring the integrity of the ventilatory circuit and artificial airway

A) 1 and 3 only
B) 2, 3, and 4 only
C) 1, 2, and 4 only
D) 1, 2, 3, and 4