A nurse is preparing to administer prescribed oral medicatio… | 마이메르시 MyMerci
Adult Health
문제

A nurse is preparing to administer prescribed oral medications to a client with a newly inserted nasogastric (NG) tube following an ischemic stroke. To ensure safe management and prevent life-threatening complications, which priority action must the nurse implement first?

해설
Verifying NG tube placement is the priority to prevent aspiration pneumonia. Irrigation, positioning, and securing are important but secondary to safety verification.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the fundamental and critical safety principle for managing a Nasogastric (NG) tube. The core issue is preventing the life-threatening complication of Aspiration pneumonia, which can occur if fluids (medications, feedings) are instilled into the lungs due to incorrect tube placement. The patient's history of an ischemic stroke increases risk due to potential dysphagia and impaired gag reflex. The Nursing Process dictates that assessment (verifying placement) must always precede intervention (administration).

Answer Rationale: Key Point! The single most important, evidence-based action before using an NG tube for any purpose is to confirm its tip is in the stomach, not the lung. This is a non-negotiable safety step. The correct answer, verifying placement, directly addresses the primary risk of aspiration. Best practice involves multiple methods: Auscultation of air insufflation (whoosh sound over the stomach), pH testing of aspirated gastric contents (pH < 5.0 is strongly indicative of gastric placement), and measuring the external tube length. For a newly inserted tube, verification is mandatory before the first use.

Distractor Analysis:
Watch out for confusion! Option 1: While irrigation maintains patency, it should only be done after correct placement is confirmed. Irrigating a misplaced tube could cause immediate aspiration.
Option 2: Positioning the client supine is contraindicated for NG tube feeding/medication administration. The head of the bed should be elevated to at least 30-45 degrees to use gravity to prevent reflux and aspiration. A supine position increases aspiration risk.
Option 4: Securing the tube is important for comfort and to prevent displacement, but it does not verify where the internal tip is located. A well-secured tube can still become dislodged internally.

Related Concepts: This principle applies to all enteral access tubes (e.g., nasoduodenal, gastrostomy). Aspiration risk is heightened in patients with neurological deficits (stroke), decreased level of consciousness, or impaired gag reflex. Always follow the facility's protocol, which should include initial X-ray verification for small-bore feeding tubes, as auscultation alone is not reliable. Concept Summary
ConceptKey Point
NG Tube Safety PrincipleVerify placement BEFORE ANY use (meds, feed, irrigation).
Primary Complication to PreventAspiration Pneumonia (life-threatening).
Verification Methods (Combined)1. X-ray (gold standard for initial placement).
2. pH testing of aspirate (pH < 5.0).
3. Visual inspection of aspirate.
4. Measurement of external tube length.
Safe Administration PositionHead of Bed (HOB) elevated 30-45 degrees.
High-Risk Patient PopulationNeurological impairment (e.g., stroke), decreased LOC.
Side-by-Side Comparison!
ActionPriority & RationaleWhen It's Wrong
Verify NG Tube PlacementFIRST PRIORITY. Prevents aspiration. Foundational safety assessment.If done after irrigation or administration.
Irrigate NG TubeSecondary action. Maintains patency after placement is confirmed.If done first with a misplaced tube (causes aspiration).
Position Client (HOB elevated)Critical during & after administration. Prevents reflux/aspiration.If client is supine (increases aspiration risk).
Secure the TubeOngoing care. Prevents external displacement.If mistaken for verifying internal placement.
Anatomy, Physiology & Pharmacology PointsAnatomy: The NG tube passes through the nose, nasopharynx, esophagus, and into the stomach. Incorrect placement can be in the lungs (trachea/bronchi) or coiled in the esophagus. • Physiology: Gastric contents are highly acidic (pH 1.5-3.5). Pulmonary secretions are more alkaline (pH >6.0). This difference is the basis for pH testing. • Pharmacology: Administering medications via an NG tube often requires crushing (if not contraindicated) and dissolving in water. Liquid formulations are preferred. Always flush with water before and after medication administration to maintain tube patency and ensure full dose delivery. Memory TipsAcronym: VIP for NG TubesVerify, Irrigate/Infuse, Position. You must always start with V. • Mnemonic: "Check Before You Inject" – A simple reminder that assessment (checking placement) comes before any action. • Think of it like driving: You wouldn't start driving without first checking if you're in the right car and the key is in the ignition (verification). Securing your seatbelt (positioning/securing) is important, but comes after. High-Frequency NCLEX Topics NG tube management is a Core and High Yield topic. The NCLEX-RN consistently tests: 1. Priority Action: Verifying placement is almost always the correct answer when it's an option. 2. Complication Recognition: Signs of aspiration (coughing, dyspnea, fever) or tube displacement. 3. Procedure Steps: Knowing the correct order for insertion, verification, and administration. 4. Patient Population: Identifying patients at highest risk (neuro, unconscious, elderly). Watch Out for Question Variations! • Instead of "first action," the question may ask for the "priority assessment" or "action to prevent aspiration." • The scenario could change: A patient coughing violently during NG tube feeding – the priority is to stop the feeding immediately and assess for aspiration/displacement. • It could be about Gastrostomy tube (G-tube) – while placement verification is different (checking for external displacement, leakage), the principle of confirming safe access before use remains.

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: Mr. Johnson, 72, is 1-day post ischemic stroke with left-sided weakness and dysphagia. An NG tube was inserted for medication administration and nutrition. You are about to give his morning medications (aspirin, atorvastatin) via the tube.

Nursing Intervention Strategy: 1. Assessment (First & Always): Check the physician's order. Assess the patient's level of consciousness and ability to cooperate. Verify NG tube placement per hospital policy: Check the mark at the nostril, measure external length, attempt to aspirate gastric contents, check pH (< 5.0 expected). If in doubt, do not use the tube and notify the provider; an X-ray may be needed. 2. Preparation: Elevate the Head of Bed (HOB) to at least 30-45 degrees. Gather medications, a 60mL syringe, and a cup of warm water for flushing. 3. Implementation: a. Flush the tube with 30mL of water (pre-med flush). b. Administer each medication separately, diluted in water if crushed. Flush with 15mL of water between each drug. c. After the last medication, flush with another 30mL of water (post-med flush). d. Keep the HOB elevated for at least 30-60 minutes after administration. e. Document the procedure, including verification method, medications given, and patient tolerance. 4. Evaluation: Monitor for signs of aspiration (coughing, choking, decreased SpO2), nausea, vomiting, or abdominal distension. Assess tube placement again at regular intervals (per policy) and before each use.

Patient Safety and Precautions:Never administer anything through an NG tube without first confirming placement. • Never use the tube if you aspirate fluid with a pH >6 or obtain respiratory secretions. • Contraindication: Do not crush enteric-coated, sustained-release, or sublingual medications. • Monitoring: Watch for tube clogging. Use warm water for flushing; avoid acidic juices like cranberry which can cause protein precipitation. Nursing Procedure & Medication Flow Step-by-Step for NG Medication Administration: 1. Verify order and patient identity (Two patient identifiers). 2. Verify NG tube placement (pH, external length). 3. Position patient: HOB elevated 30-45 degrees. 4. Prepare medications: Use liquid forms or crush non-coated pills into fine powder. Mix each in 15-30mL of warm water. 5. Flush tube with 30mL water. 6. Administer first medication. Flush with 15mL water. 7. Administer next medication. Flush with 15mL water. Repeat for all meds. 8. Final flush with 30mL water. 9. Clamp or plug the tube. Keep HOB elevated. 10. Document. A Word from Your Senior Nurse "Remember, as nurses, we are the last safety checkpoint before anything enters a patient's body. That NG tube is a direct highway to their stomach—or tragically, to their lungs if we're not vigilant. I've seen patients develop severe pneumonia from a single misplaced feeding. The five minutes you take to properly verify placement isn't just a policy; it's a act of protecting a life. On the NCLEX and in practice, let 'safety first' be your mantra. Always ask yourself: 'Have I confirmed this is safe?' That mindset will make you an excellent nurse."

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