Which evaluation indicates that placement of a nasogastric or enteric tube is correct?
a. Nasointestinal aspirate with a pH of less than 6
b. Pleural fluid pH of less than 6
c. Gastric aspirate with a pH of 5 or less after patient fasting
d. Gastric aspirate with a pH of 4 and continuous tube feedings
C
Gastric fluid from a patient who has fasted for at least 4 hours usually has a pH of 5 or less.
Fluid from an enteric tube of a fasting patient usually has a pH greater than 6 . The pH of pleural fluid from the tracheobronchial tree is generally greater than 6 . Patients with continuous tube feeding may have a pH of 5 or greater.
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