You would recommend an arterial puncture to obtain a sample…
You would recommend an arterial puncture to obtain a sample for blood gas analysis under which of the following conditions? I. To measure the patient’s Pao2 level after a change in the patient’s inspired O2 concentration II. Suspected CO poisoning III. To measure the patient’s Paco2 level after a change in the patient’s minute volume IV. After the patient has been admitted to the emergency department with a tension pneumothorax V. During a cardiopulmonary resuscitation attempt