By inserting a Nasogastric tube, you are gaining access to the stomach and its contents. This enables you to drain gastric contents, decompress the stomach, obtain a specimen of the gastric contents, or introduce a passage into the GI tract. This will allow you to treat gastric immobility, and bowel obstruction. It will also allow for drainage and/or lavage in drug overdosage or poisoning. In trauma settings, NG tubes can be used to aid in the prevention of vomiting and aspiration, as well as for assessment of GI bleeding. NG tubes can also be used for enteral feeding initially.
Procedures
1. Gather equipment.
2. Don non-sterile gloves
3. Explain the procedure to the patient and show equipment
4. If possible, sit patient upright for optimal neck/stomach alignment
5. Examine nostrils for deformity/obstructions to determine best side for insertion
6. Measure tubing from bridge of nose to earlobe, then to the point halfway between the end of the sternum and the navel
7. Mark measured length with a marker or note the distance
8. Lubricate 2-4 inches of tube with lubricant (preferably 2% Xylocaine). This procedure is very uncomfortable for many patients, so a squirt of Xylocaine jelly in the nostril, and a spray of Xylocaine to the back of the throat will help alleviate the discomfort.
9. Pass tube via either nare posteriorly, past the pharynx into the esophagus and then the stomach.
☞ Instruct the patient to swallow (you may offer ice chips/water) and advance the tube as the patient swallows. Swallowing of small sips of water may enhance passage of tube into esophagus.
☞ If resistance is met, rotate tube slowly with downward advancement toward closes ear. Do not force.
10. Withdraw tube immediately if changes occur in patient's respiratory status, if tube coils in mouth, if the patient begins to cough or turns pretty colours
11. Advance tube until mark is reached
12. Check for placement by attaching syringe to free end of the tube, aspirate sample of gastric contents. Do not inject an air bolus, as the best practice is to test the pH of the aspirated contents to ensure that the contents are acidic. The pH should be below 6. Obtain an x-ray to verify placement before instilling any feedings/medications or if you have concerns about the placement of the tube.
13. Secure tube with tape or commercially prepared tube holder
14. If for suction, remove syringe from free end of tube; connect to suction; set machine on type of suction and pressure as prescribed.
15. Document the reason for the tube insertion, type & size of tube, the nature and amount of aspirate, the type of suction and pressure setting if for suction, the nature and amount of drainage, and the effectiveness of the intervention.
Procedures
1. Gather equipment.
2. Don non-sterile gloves
3. Explain the procedure to the patient and show equipment
4. If possible, sit patient upright for optimal neck/stomach alignment
5. Examine nostrils for deformity/obstructions to determine best side for insertion
6. Measure tubing from bridge of nose to earlobe, then to the point halfway between the end of the sternum and the navel
7. Mark measured length with a marker or note the distance
8. Lubricate 2-4 inches of tube with lubricant (preferably 2% Xylocaine). This procedure is very uncomfortable for many patients, so a squirt of Xylocaine jelly in the nostril, and a spray of Xylocaine to the back of the throat will help alleviate the discomfort.
9. Pass tube via either nare posteriorly, past the pharynx into the esophagus and then the stomach.
☞ Instruct the patient to swallow (you may offer ice chips/water) and advance the tube as the patient swallows. Swallowing of small sips of water may enhance passage of tube into esophagus.
☞ If resistance is met, rotate tube slowly with downward advancement toward closes ear. Do not force.
10. Withdraw tube immediately if changes occur in patient's respiratory status, if tube coils in mouth, if the patient begins to cough or turns pretty colours
11. Advance tube until mark is reached
12. Check for placement by attaching syringe to free end of the tube, aspirate sample of gastric contents. Do not inject an air bolus, as the best practice is to test the pH of the aspirated contents to ensure that the contents are acidic. The pH should be below 6. Obtain an x-ray to verify placement before instilling any feedings/medications or if you have concerns about the placement of the tube.
13. Secure tube with tape or commercially prepared tube holder
14. If for suction, remove syringe from free end of tube; connect to suction; set machine on type of suction and pressure as prescribed.
15. Document the reason for the tube insertion, type & size of tube, the nature and amount of aspirate, the type of suction and pressure setting if for suction, the nature and amount of drainage, and the effectiveness of the intervention.
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