A client presents to the emergency department with a chemical burn to the right eye from a household cleaning product containing sodium hydroxide. The client is experiencing severe eye pain, tearing, and blurred vision. What is the nurse's highest priority action?
1Apply a sterile eye patch to protect the affected eye from further contamination
2Administer prescribed topical anesthetic drops to reduce pain before treatment
3Obtain a detailed history of the chemical exposure and contact poison control
4Begin immediate and continuous irrigation of the affected eye with normal saline✓ 정답
해설
Immediate irrigation is critical for chemical eye burns, especially alkaline ones like sodium hydroxide, to dilute and remove the substance and prevent further tissue damage. Other actions like patching, pain relief, or history-taking are secondary priorities.
Core Nursing ExplanationKey Concept Analysis: This question tests the priority nursing action for a chemical burn to the eye, specifically from an alkaline substance (sodium hydroxide). The core principle is immediate decontamination. Alkaline chemicals (like lye, ammonia) are particularly dangerous because they cause liquefactive necrosis, which allows them to penetrate deeply into ocular tissues and continue causing damage long after initial contact. Time is the most critical factor in preventing permanent vision loss.
Answer Rationale: Key Point! Option ④ is correct because immediate and continuous irrigation is the universal, evidence-based first step for any chemical exposure to the eye. It dilutes the chemical concentration, removes particulate matter, and helps restore the eye's normal pH. For alkaline burns, irrigation may need to continue for 30 minutes to several hours or until the pH of the conjunctival fornix normalizes (pH 7.0-7.2). This action directly addresses the ongoing pathological process and is the foundation for all subsequent care.
Distractor Analysis:
• Watch out for confusion! Option ① (Apply a sterile eye patch): Patching is contraindicated in the acute phase of a chemical burn. It traps the chemical against the eye, increases contact time, and can worsen the injury. Patching may be considered later for comfort or healing, but never as an initial priority.
• Option ② (Administer topical anesthetic): While pain management is important, administering medication before irrigation delays the critical life-saving (or sight-saving) intervention. Furthermore, anesthetics can interfere with corneal epithelial healing if used repeatedly.
• Option ③ (Obtain detailed history): History is important for guiding long-term treatment and reporting, but it must not delay immediate treatment. The key information ("chemical in eye") is already known. Irrigation begins first, and history can be gathered concurrently or immediately after.
Related Concepts: The priority follows the ABC (Airway, Breathing, Circulation) and DE (Disability, Exposure) framework in emergency nursing. For localized chemical exposures, the principle is "Remove the patient from the source, remove the source from the patient." Eye irrigation is a form of source removal. Remember: Acid vs. Alkaline Burns: Acids typically cause coagulative necrosis (forming a barrier that may limit penetration), while alkalis cause liquefactive necrosis (ongoing penetration). However, the initial nursing action (immediate irrigation) is identical for both. Concept Summary
• Pathophysiology: Alkali (NaOH) → Liquefactive necrosis → Deep tissue penetration → Ongoing damage.
• Nursing Priority: Immediate, copious, continuous irrigation with isotonic fluid (NS or LR).
• Goal: Dilute/remove chemical, normalize conjunctival pH (<7.5), limit injury.
• Contraindications: Do NOT patch, do NOT delay irrigation for history/meds.
Side-by-Side Comparison!
Intervention
Chemical Burn (Acute Phase)
Corneal Abrasion
Primary Action
Immediate, copious irrigation
Fluorescein stain exam, antibiotic ointment
Eye Patching
Contraindicated (traps chemical)
Often used (promotes healing, reduces pain from blinking)
Pain Management
Systemic analgesics after irrigation
Topical cycloplegics, oral analgesics
Anatomy, Physiology & Pharmacology Points
• Anatomy: The cornea and conjunctiva are the primary tissues damaged. Alkalis can destroy stem cells in the limbus, preventing corneal regeneration.
• Physiology: Normal tear film pH is approximately 7.4. Irrigation aims to return the ocular surface to this range.
• Irrigation Fluids: Normal Saline (0.9% NaCl) or Lactated Ringer's are isotonic and preferred. Tap water can be used in the field if nothing else is available, but it is hypotonic and can cause corneal edema.
Memory Tips
• Acronym: For chemical burns, think "IRRIGATE FIRST" – Immediate, Rapid, Right-now, Irrigation Goes Ahead of Talking, Everything else.
• Mnemonic: "PATCH is BAD for CHEMICALS" – reminds you that patching is contraindicated.
High-Frequency NCLEX Topics
This is a classic NCLEX priority-setting question. The exam loves to test your ability to distinguish between a correct action and the first or most important action. Always ask yourself: "What action will stop the ongoing harm to the patient right now?"
Watch Out for Question Variations!
• Variation 1: The chemical is changed (e.g., acid, organic solvent). Answer remains the same: IRRIGATE.
• Variation 2: The question asks, "After initiating irrigation, what is the nurse's next action?" Possible answers: Check pH, obtain full history, contact poison control, prepare for ophthalmology consult.
• Variation 3: The scenario involves a chemical splash to the face/eye and the patient is not wearing contact lenses. A distractor might be "Remove contact lenses." While lens removal is important, it should be done during irrigation, not before starting it.
Nursing Clinical Practice GuideClinical Scenario: You are the triage nurse in the ED. A frantic family member brings in a 45-year-old patient who was cleaning the oven without eye protection. The patient is holding a wet cloth over the right eye, screaming in pain. The bottle of oven cleaner (contains sodium hydroxide) is in a bag.
Nursing Intervention Strategy:
1Immediate ActionDon gloves. Gently remove the cloth. Without delay, lead the patient to the eye wash station or use a sterile IV bag of Normal Saline with tubing.
2Irrigation TechniquePosition the patient supine or with head tilted back over a basin. Use your fingers to hold the eyelids open (this can be difficult due to blepharospasm). Irrigate from the nasal corner outward to avoid flushing chemical into the unaffected eye. Continuously ask the patient to look up, down, left, and right to ensure all fornices are flushed.
3Ongoing Assessment & Care• After 5-10 minutes of irrigation, you or the provider may check the pH using litmus paper touched to the inner lower conjunctival fornix.
• Continue irrigation until pH is neutral (7.0-7.2). This often takes 30+ minutes for alkalis.
• After irrigation is established, obtain history: time of exposure, exact chemical, any first aid given.
• After irrigation, administer ordered topical antibiotic (e.g., erythromycin ointment) and cycloplegic drops (e.g., homatropine) for pain, and systemic analgesics.
• Arrange immediate ophthalmology consultation.
Patient Safety and Precautions:
• Self-Protection: Wear gloves and goggles to avoid secondary exposure.
• Eyelid Retraction: Do not apply pressure on the globe. Use a lid speculum if available and needed.
• Contact Lenses: If present, attempt to remove them during irrigation. They may trap chemicals.
• Documentation: Meticulously document: time irrigation started/stopped, type/volume of fluid used, pH readings over time, patient's tolerance, and all interventions.
Nursing Procedure & Medication FlowProcedure: Emergency Eye Irrigation
1. Explain the procedure quickly to the patient: "I need to wash your eye out with water right now to prevent blindness. This is urgent."
2Set UpConnect IV tubing to a 1L bag of Normal Saline. Adjust flow to a steady, gentle stream (not a high-pressure jet).
3PerformIrrigate. Have an assistant help with retraction or pH checks.
4MonitorAssess for pain reduction, visual acuity (finger counting), and pH.
5Post-ProcedureApply medications as ordered. Provide a protective shield (NOT a pressure patch) if ordered for comfort.
A Word from Your Senior Nurse
"In the chaos of the ED, your calm, decisive action here can literally save someone's sight. The urge to comfort the patient or get a full story is strong, but you must fight it. Think of it like this: if their hair was on fire, you'd put it out first, then ask how it started. A chemical burn is a 'fire' on the eye. Put it out first—irrigate, irrigate, irrigate. Everything else is secondary. This mindset of acting to stop immediate harm is at the heart of nursing priority-setting, both on the NCLEX and at the bedside."
Liquefactive Necrosis — A type of tissue death caused by certain enzymes or chemicals (like alkalis) where the tissue becomes softened, liquefied, and can lead to deep penetration and ongoing damage.
Conjunctival Fornix — The recess or pocket formed where the inner lining of the eyelid (palpebral conjunctiva) meets the lining over the eyeball (bulbar conjunctiva). It's a critical area to irrigate during chemical exposure as chemicals can pool there.
Blepharospasm — Involuntary, forceful closure of the eyelids, often in response to pain or irritation (like a chemical burn). It makes retracting the eyelids for irrigation challenging.
Cycloplegic Drops — Medications (e.g., homatropine) that paralyze the ciliary muscle of the eye, causing loss of accommodation (focusing ability) and pupil dilation (mydriasis). They are used after chemical burns to reduce pain from ciliary spasm.
Normal Saline (0.9% NaCl) — An isotonic intravenous solution commonly used for eye irrigation in chemical burns. It is compatible with ocular tissues and helps restore a normal pH without causing significant fluid shifts into corneal cells.