The nurse is preparing to administer a feeding via a nasogastric tube. The nurse would perform which of the following before initiating the feeding?

Appeared in: DHS 2018 shift 1st

Explanation

Verifying tube placement is the most critical safety check before initiating an NG feeding to prevent aspiration.
The primary bedside method is aspirating gastric contents and observing their appearance (e.g., grassy-green, tan, off-white).
Testing the pH of the aspirate is a key confirmation step; a pH of 5.5 or less is indicative of gastric placement.
If placement is uncertain, an X-ray is the definitive gold standard for confirmation and must be done before feeding.
Administering feeding into a misplaced tube (e.g., in the lungs) can lead to severe complications like aspiration pneumonia, which can be fatal.

Option B: Placing the patient in a left-lying position does not protect against aspiration. In fact, a flat or side-lying position increases the risk of gastric reflux and aspiration.
Option C: Enteral formulas are formulated to be nutritionally complete at full strength. Diluting them without a specific medical order can lead to inadequate nutrition, electrolyte imbalances, and increased risk of bacterial contamination.
Option D: Microwaving enteral formula is dangerous. It causes uneven heating, creating hot spots that can burn the patient's gastrointestinal tract. It can also degrade heat-sensitive nutrients in the formula.

Clinical Relevance

Nursing practice connection: Safe nursing care depends on performing Safety protocols for nasogastric (NG) tube feeding in the correct sequence, documenting the action clearly, and monitoring for the expected response.
Patient safety is the absolute priority in NG tube feeding. Aspiration pneumonia from a misplaced tube is a preventable but potentially lethal complication.
Nurses must be vigilant in following the correct procedure for every feeding, as tubes can migrate or become dislodged between feedings.
What if? If the nurse aspirates stomach contents and the pH is 7.0, the feeding must be held. This pH suggests the tube may be in the small intestine or, more dangerously, the respiratory tract. The nurse should notify the provider and anticipate an order for an X-ray to confirm placement.

How to Approach the Question

First, identify the core of the question: What is the most important action to take before starting an NG tube feeding?
This is a clinical procedure question that requires you to prioritize actions based on patient safety.
Evaluate each option by considering the potential risks and benefits. Ask yourself, 'What is the worst thing that could happen if I don't do this?'
Option A (checking placement) prevents aspiration, a life-threatening event. The risk is very high.
Option B (positioning) is important, but the specified position is incorrect and increases risk.
Options C (dilution) and D (microwaving) relate to the formula itself. While important, they are secondary to ensuring the tube is in the right place. Incorrect preparation can cause harm, but feeding into the lungs is more immediately dangerous.

Concept Tested & Keywords

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E6 Nursing Fundamentals Taylor p. 523-525

E6 Pharmacology Nursing Lilley 11e Part 3 p. 233-235

E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 203-205

Practise the full DHS 2018 shift 1st

Attempt every question from this paper in a timed mock, then review the full solution for each one.