Final answer:
An EMT may administer oxygen to a patient with abdominal pain if the pulse oximeter reading falls below 94 percent, which is a clinical indicator of potential hypoxia.
Step-by-step explanation:
When considering the administration of oxygen to a patient with abdominal pain, an EMT may decide to administer oxygen if the patient's pulse oximetry level drops below 94 percent. This is because a pulse oximetry reading below 94 percent can indicate that the tissues are not receiving sufficient oxygen, leading to hypoxia. Pulse oximetry is a non-invasive method that estimates the percent saturation of oxygen in hemoglobin, which is vital for assessing a patient's oxygenation status. Transportation time to the hospital or the duration of pain are not primary indicators for the administration of oxygen.