X-ray. ONLY because it asks for the MOST RELIABLE indicator. In reality O2 sat improvement is commonly used. They have little cameras connected now so i think for the most part when they get in they are sure.
The least reliable sign for diagnosing esophageal intubation is the presence of breath sounds over the stomach. While breath sounds can indicate proper placement in the lungs, they may also be heard in the case of esophageal intubation due to air entering the esophagus, leading to misinterpretation. More reliable indicators include the absence of breath sounds in the lungs and the presence of gastric sounds. Confirmation via capnography or visualization of the endotracheal tube placement is preferred for accuracy.
Capniigram
Continuous waveform capnography
Thirst
is reputation an effecive indicator of a person's being a reliable source of information
Streak is more reliable!!
Contrasts
Contrasts
Streak is more reliable!!
Blood alcohol concentration is a more reliable indicator of intoxication because individuals have different tolerance levels.
A client's self-report of pain.
There are differing opinions on the accuracy of IQ tests. Although some believe that they are a reliable indicator of an individual's intelligence, others believe that they offer an incomplete picture.