A nurse is caring for a 45-year-old client who underwent abdominal surgery and has a newly inserted nasogastric tube for gastric decompression. The nurse notes that the tube is draining dark green fluid and the client reports mild throat discomfort. Which nursing action should be included in the client's plan of care?

Verifying NG tube placement before any administration prevents aspiration pneumonia, a critical safety priority. Other options are less immediate or potentially harmful (e.g., supine position increases aspiration risk).

Understanding the Clinical Scenario
A 45-year-old client is post-abdominal surgery with a newly inserted nasogastric (NG) tube for gastric decompression. The drainage of dark green fluid is an expected finding, as it typically represents a mixture of gastric secretions and bile, indicating the tube is functioning. Mild throat discomfort is also a common, non-emergent complaint due to the physical presence of the tube. The core of this question is identifying the most critical, evidence-based nursing action to include in the plan of care for a client with an NG tube, regardless of its purpose.

Analysis of the Correct Answer (Option 4)
The priority action is to verify tube placement before administering medications or feedings. This is a non-negotiable patient safety measure. An NG tube inserted for decompression is often later used for medication administration or enteral feedings. If the tube has become displaced into the tracheobronchial tree or esophagus, instilling anything through it can lead to catastrophic complications, including aspiration pneumonia, pneumonitis, or even death ^[4]. The provided evidence strongly emphasizes that blind insertion carries significant risks, and verification of correct gastric positioning is mandatory to exclude malposition [3, 4]. While chest radiography is the conventional standard, the literature highlights that point-of-care ultrasonography is an emerging, safe, and radiation-free method for real-time verification of the tube's location in the esophagus and stomach [2, 3]. This action is the cornerstone of safe NG tube management and must be documented in the plan of care.

Critique of the Incorrect Options

Option 1: Monitor the client's electrolyte levels daily to prevent imbalances.
While electrolyte monitoring is a relevant consideration for a client with an NG tube set to suction, as prolonged gastric drainage can lead to losses of hydrogen, chloride, and potassium, resulting in metabolic alkalosis, it is not the highest priority action derived from the core evidence. The provided literature focuses on tube placement and verification as the primary safety concern [2, 3, 4]. Daily labs might be ordered, but the nurse's immediate and constant responsibility in the plan of care is ensuring the tube’s correct position before use.

Option 2: Keep the client in a supine position to prevent tube displacement.
This action is contraindicated. A supine position significantly increases the risk of aspiration if gastric contents reflux. To prevent both displacement and aspiration, the client's head of bed should be elevated to at least 30 degrees, unless otherwise contraindicated. The research on NG tube management implicitly supports positioning that minimizes respiratory risk, making this option unsafe ^[4].

Option 3: Apply petroleum jelly to the nares to prevent skin breakdown.
While preventing skin breakdown at the nares is an important comfort and safety measure, petroleum jelly is a lipid-based product. Its use is contraindicated because aspiration of mineral oil or petroleum-based products can cause a severe and potentially fatal lipoid pneumonia. A water-soluble lubricant is the standard of care for mucosal membrane integrity. This option presents a direct safety hazard.

Synthesis and Clinical Decision-Making
The evidence consistently establishes that the most critical safety step in NG tube management is the verification of correct gastric placement before the tube is used for any purpose beyond its initial decompression function [2, 4]. The development of standardized protocols, including ultrasonography-guided verification, underscores the clinical priority of preventing tube-related respiratory complications [2, 3]. Therefore, the plan of care must explicitly include the verification of tube placement as a prerequisite to administering anything via the tube, making option 4 the definitive correct answer.