NG Tube Insertion & Care: Placement Confirmation Quiz

1. An NG tube in the esophagus would most likely show what pH reading?

PH 1–4

PH 5–6

PH 6–8

PH >8

Submit

3. Which finding suggests an NG tube has migrated into the respiratory tract?

Persistent cough and respiratory distress

Constipation

Abdominal distention

Nausea

4. You may safely assume correct NG placement based only on the external length marker. True or False?

True

False

5. An NG tube advanced into the bronchus would likely cause what immediate sign?

Abdominal bloating

Coughing during insertion

Elevated blood pressure

Decreased appetite

6. What is the most common complication of prolonged NG tube use?

Sinusitis and nasal necrosis

Hyperglycemia

Hypokalemia

Tachycardia

7. After NG tube insertion, which finding most reliably confirms gastric placement?

Patient reports no discomfort

Aspirate with pH 1–4 and X-ray confirmation

Breath sounds normal bilaterally

Tube length marking at 35 cm

Submit

9. If an NG tube becomes obstructed, which intervention is safest first?

Replace the tube immediately

Flush gently with warm normal saline

Instill carbonated fluid

Withdraw the tube partially

10. How often should you verify NG tube placement during continuous feeding?

Every 4 hours

Every 8 hours

Every shift

Once per day

11. What is the gold standard method for confirming NG tube placement?

Abdominal X-ray

Auscultation of air bolus

PH testing of aspirate

Visualization of tube at nares

12. What is the primary purpose of aspirating gastric contents before feeding?

Measure residual volume and confirm placement

Prevent tube obstruction

Reduce gastric pressure

Assess patient hydration

13. Which patient position may facilitate easier NG tube insertion?

Supine

Sitting upright with neck flexed

Trendelenburg

Left lateral

14. Auscultation of the epigastrium while injecting air is a reliable sole method for confirming NG tube placement. True or False?

True

False

15. If you cannot aspirate gastric contents from an NG tube, what is your next action?

Proceed with feeding immediately

Reposition the tube and try again

Obtain an X-ray before using the tube

Flush with 50 mL of normal saline

16. What is the typical external length marking when an NG tube is correctly positioned?

18–22 cm

25–30 cm

35–40 cm

45–50 cm

17. An NG tube should be secured to prevent migration. Which site is most appropriate?

Upper lip

Cheek with tape

Forehead

Chin

18. Before administering feeding or medication through an NG tube, you must verify placement. True or False?

True

False

19. Which complication is most likely if an NG tube is placed in the respiratory tract?

Constipation

Aspiration pneumonia

Gastric distention

Diarrhea

20. When aspirating gastric contents, what pH range indicates correct placement in the stomach?

PH 1–4

PH 4–6

PH 6–8

PH 8–10

NG Tube Quiz: Can You Confirm Placement?

1. An NG tube in the esophagus would most likely show what pH reading?

2.

What first name or nickname would you like us to use?

2. Before each feeding, you confirm NG tube placement by aspirating gastric contents. This is a key step in NG Tube Insertion & Care to ensure ____.

3. Which finding suggests an NG tube has migrated into the respiratory tract?

4. You may safely assume correct NG placement based only on the external length marker. True or False?

5. An NG tube advanced into the bronchus would likely cause what immediate sign?

6. What is the most common complication of prolonged NG tube use?

7. After NG tube insertion, which finding most reliably confirms gastric placement?

8. Gastric aspirate appearance can indicate tube placement. Gastric fluid typically appears ____.

9. If an NG tube becomes obstructed, which intervention is safest first?

10. How often should you verify NG tube placement during continuous feeding?

11. What is the gold standard method for confirming NG tube placement?

12. What is the primary purpose of aspirating gastric contents before feeding?

13. Which patient position may facilitate easier NG tube insertion?

14. Auscultation of the epigastrium while injecting air is a reliable sole method for confirming NG tube placement. True or False?

15. If you cannot aspirate gastric contents from an NG tube, what is your next action?

16. What is the typical external length marking when an NG tube is correctly positioned?

17. An NG tube should be secured to prevent migration. Which site is most appropriate?

18. Before administering feeding or medication through an NG tube, you must verify placement. True or False?

19. Which complication is most likely if an NG tube is placed in the respiratory tract?

20. When aspirating gastric contents, what pH range indicates correct placement in the stomach?