A client with a nasogastric (NG) tube in place. Before giving a tube feeding, which action is the FIRST priority?

Nasogastric tube feeding safety: confirming tube placement BEFORE each feeding is a CRITICAL PATIENT SAFETY STEP. A misplaced tube (in the respiratory tract) with feeding infusion can cause ASPIRATION, PNEUMONIA, and potentially DEATH.

Tube placement verification: RECOMMENDED — ASPIRATION AND pH TESTING: aspirate gastric contents; gastric contents have pH < 5 (acidic); intestinal fluid is 6-8; respiratory fluid is >7; confirm pH before each feeding; AUSCULTATION OF AIR ('whoosh' test — inserting air and listening) is NOT RELIABLE as a primary confirmation method and should not be used as the sole method — bowel sounds can be transmitted to the respiratory tract; RADIOGRAPHY (X-RAY): GOLD STANDARD for initial placement confirmation — mandatory after initial NG tube insertion; visual confirmation of tube tip in the stomach.

After initial x-ray confirmation: subsequent checks before each feeding use pH and aspiration.

Checking residual: after confirming placement, aspirate to measure GASTRIC RESIDUAL VOLUME (GRV) — how much feeding remains from previous feeding; high residual (typically >250-500 mL, per facility policy) may indicate delayed gastric emptying; follow facility protocol (may hold feeding, notify RN, or continue feeding depending on clinical situation); replace aspirate to avoid losing gastric acid and electrolytes.

Additional safety measures:

Position: elevate HOB 30-45° during feeding and 30 minutes after to reduce aspiration risk.

Rate: start slowly, advance per orders.

Flushing: flush tube with 30 mL water before and after feeding and medications; ASSESS for ASPIRATION SIGNS: coughing, choking, desaturation, respiratory distress.

Pn role: verify placement per protocol; check residual; position client; administer feeding as ordered; monitor for complications; flush appropriately.