4.4 Special Healthcare Needs, Tracheostomies, and G-Tubes
Key Takeaways
- Enteral bolus feedings via Gastrostomy tube (G-tube) require positioning the student in Semi-Fowler or High Fowler position (30-45 degrees elevated) during feeding and for 30 to 60 minutes post-feeding to prevent aspiration.
- Accidental G-tube dislodgement is a time-critical emergency; stoma tracts can constrict within 1 to 2 hours, requiring immediate insertion of a lubricated Foley catheter or replacement tube to maintain tract patency.
- Tracheostomy emergency assessment for acute respiratory distress follows the DOPE mnemonic: Dislodgement, Obstruction (mucus plug), Pneumothorax, and Equipment failure.
- Tracheostomy suctioning technique must use a pre-measured depth (catheter depth + 0.5 cm), apply suction ONLY upon withdrawal for no more than 5 to 10 seconds, and always maintain spare tracheostomy tubes (same size and one size smaller) at bedside.
- Ventriculoperitoneal (VP) shunt malfunction or failure presents with signs of increased intracranial pressure (ICP), including morning headache, persistent projectile vomiting, lethargy, irritability, and 'sunsetting' eyes.
4.4 Special Healthcare Needs, Tracheostomies, and G-Tubes
Gastrostomy Tube (G-Tube) Management and Emergency Care
Students with severe dysphagia, neuromuscular impairment (e.g., cerebral palsy), or chronic malnutrition often rely on a Gastrostomy Tube (G-tube) or low-profile button (e.g., Mic-Key button) for enteral nutrition, hydration, and medication administration.
Bolus and Continuous Feeding Protocols
- Pre-Feeding Assessment & Residual Check: Verify tube placement and assess gastric residual volume by attaching a syringe and gently aspirating. Re-infuse residual volume unless orders specify otherwise (to prevent electrolyte depletion). If residual volume exceeds >50% of the previous bolus or >100 mL, hold feeding and notify parent/physician.
- Positioning Standard: Position the student in Semi-Fowler or High Fowler position (elevated 30 to 45 degrees) during feeding and maintain this position for 30 to 60 minutes post-feeding to prevent gastroesophageal reflux and pulmonary aspiration.
- Flushing Standard: Flush G-tube with 5 to 10 mL of lukewarm water before and after bolus feedings or medication administration to maintain tube patency.
Emergency Management of Accidental Tube Dislodgement
Accidental dislodgement of a G-tube is a time-critical emergency. Mature stoma tracts can begin to constrict within 1 to 2 hours, risking complete stoma closure that requires surgical re-entry.
- Immediate Nursing Action: If authorized under physician orders and IHP, the school nurse (or trained clinician) must immediately insert a replacement G-tube or a lubricated Foley catheter of the same French size into the stoma tract to act as a stent.
- Securing Procedure: Tape the catheter securely to the abdominal wall. DO NOT inflate the Foley balloon unless explicitly trained, ordered, and placement is confirmed by aspirating gastric juice. If unable to insert a catheter, cover stoma with sterile gauze and send student immediately to the Emergency Department or GI specialist.
Tracheostomy Emergency Triage: The DOPE Mnemonic
A tracheostomy is an artificial surgical opening into the trachea to provide a secure airway for chronic respiratory failure or upper airway obstruction. Acute respiratory distress in a tracheostomy-dependent student requires rapid systematic triage using the DOPE Mnemonic:
| Letter | Emergency Mechanism | Assessment & Immediate Nursing Action |
|---|---|---|
| D | Dislodgement | Tracheostomy tube has decannulated or displaced into soft tissue. Action: Attempt to reinsert spare tracheostomy tube of same size (or one size smaller) using obturator. |
| O | Obstruction | Lumen occluded by thick mucus plug, blood clot, or kinking. Action: Instill normal saline drops if ordered and immediately perform tracheostomy suctioning. |
| P | Pneumothorax | Air leak into pleural space causing lung collapse. Action: Auscultate lungs (absent breath sounds on affected side, tracheal deviation). Activate 911 / EMS immediately. |
| E | Equipment Failure | Malfunction of ventilator, oxygen concentrator, or suction machine. Action: Disconnect from mechanical ventilator and manually ventilate using resuscitation bag with 100% oxygen. |
Tracheostomy Suctioning Technique and Mandatory Bedside Equipment
Mandatory Bedside Tracheostomy Emergency Kit
The school nurse must verify that the following emergency equipment travels with the student AT ALL TIMES (in classroom, PE, and bus):
- Two Spare Tracheostomy Tubes: One of the same size and one one size smaller (with obturators).
- Suction Equipment: Portable suction machine, tubing, and pre-measured suction catheters.
- Manual Resuscitation Bag: Bag-valve-mask (BVM) with tracheostomy adapter.
- Normal Saline & Lubricant: Water-soluble lubricant gel and saline bullets.
- Scissors and Replacement Trach Ties.
Step-by-Step Suctioning Procedure Standards
- Pre-Measurement: Measure suction catheter depth using the student's spare tube + adapter + 0.5 cm. Inserting beyond this pre-measured length causes severe tracheal carina erosion and mucosal bleeding.
- Suction Application: Advance catheter without applying suction. Apply suction ONLY while withdrawing the catheter, rotating smoothly between thumb and forefinger.
- Time Limit: Limit individual suction passes to no longer than 5 to 10 seconds to prevent severe hypoxia and vagal bradycardia. Allow 30-60 seconds of rest with oxygen between passes.
Mechanical Ventilation in School Settings
Students requiring continuous or intermittent mechanical ventilation at school require specialized care planning:
- Power & Battery Backup: Ensure ventilator has internal and external backup batteries providing at least 2 to 4 hours of independent operation. Register school building with local power utility for emergency priority restoration.
- Transportation Safety: Ventilators must be securely bolted to wheelchairs during school bus transport, never resting unsecured on lap or floor.
Ventriculoperitoneal (VP) Shunt Malfunction and Increased ICP
A Ventriculoperitoneal (VP) Shunt drains excess cerebrospinal fluid (CSF) from the cerebral ventricles into the peritoneal cavity to manage hydrocephalus. Shunt failure (occlusion, disconnection, or infection) causes rapid accumulation of CSF and dangerous elevation of Intracranial Pressure (ICP).
Clinical Manifestations of Increased ICP
- Early / Subacute Signs: Severe, progressive headache (frequently worse in the morning upon awakening), persistent projectile morning vomiting, unexplained lethargy, irritability, decline in academic focus, and personality changes.
- Late / Advanced Signs: "Sunsetting" eyes (downward deviation of gaze exposing white sclera above iris), bulging fontanelle (in infants), papilledema, bradycardia, hypertension with widened pulse pressure (Cushing's triad), and loss of consciousness.
- Emergency Response: Position student with head elevated 30 degrees, call 911 EMS, and notify parents immediately.
A student with a low-profile Gastrostomy button (Mic-Key) accidentally pulls the tube completely out during PE. The stoma tract is mature. What is the immediate priority nursing intervention to prevent stoma closure?
The school nurse is caring for a student with a tracheostomy who suddenly exhibits acute respiratory distress, cyanosis, and severe intercostal retractions. Utilizing the DOPE mnemonic, what does the 'O' stand for in guiding nursing assessment?
When performing tracheostomy suctioning on a school-aged student, which technique adheres to clinical safety standards?
An 8-year-old student with a Ventriculoperitoneal (VP) shunt presents to the health office with a severe headache, projectile morning vomiting, and marked lethargy. What condition should the school nurse suspect?