What are the key components of a pre‑procedure assessment for a pediatric patient, including history, physical examination, fasting verification, airway and cardiopulmonary evaluation, and necessary laboratory tests?

Pre-Procedure Patient Assessment for Pediatric Patients

Conduct a structured health evaluation focusing on airway risk factors, cardiopulmonary status, fasting verification, and ASA classification, with documentation completed by an appropriately licensed practitioner before any sedation or procedure 1.

Essential History Components

Obtain a targeted medical history addressing these specific elements 1:

• Current medications: Document all prescription, over-the-counter, herbal, and illicit drugs with dosages, routes, and timing. Herbal medicines (St John's wort, kava, valerian) can alter drug metabolism through cytochrome P450 inhibition or potentiate sedative effects.

• Airway and respiratory concerns:

  • History of snoring or obstructive sleep apnea (OSA)
  • Previous airway difficulties during sedation/anesthesia
  • Genetic syndromes associated with airway abnormalities (Down syndrome, Marfan syndrome, skeletal dysplasia)
  • Obesity (BMI ≥95% for age/sex)
  • Cervical spine instability

• Cardiopulmonary disease: Any cardiac or pulmonary conditions that may alter responses to sedating medications

• Neurologic status: Seizure disorders, developmental delays, or impairments that increase airway obstruction risk

• Previous sedation/anesthesia: Document any complications or unexpected responses

• Prematurity history: Former preterm infants have altered hepatic/renal function affecting drug metabolism and increased risk of post-procedure apnea 1

• Pregnancy status: Check menarchal females (up to 1% presenting for procedures are pregnant) due to fetal risks from sedating drugs 1

• Recent illness: Upper respiratory infections, fever, or systemic illness

• Family history: Malignant hyperthermia, muscular dystrophy, pseudocholinesterase deficiency 1

Physical Examination Priorities

Vital signs (document if unable to obtain in uncooperative children) 1:

• Heart rate, blood pressure, respiratory rate
• Room air oxygen saturation
• Temperature

Focused airway assessment 1:

• Tonsillar hypertrophy
• Mandibular hypoplasia or other abnormal anatomy
• Mallampati score (ability to visualize hard palate/uvula)
• Mouth opening adequacy
• Neck mobility

Cardiopulmonary examination: Auscultate for murmurs, abnormal breath sounds, signs of respiratory distress

ASA Physical Status Classification: Assign and document 1

Fasting Verification

Verify adherence to minimum fasting periods 1:

Ingested Material	Minimum Fasting Period
Clear liquids (water, juice without pulp, carbonated beverages)	2 hours
Human breast milk	4 hours
Infant formula	6 hours
Nonhuman milk	6 hours
Light meal (toast, clear liquids)	6 hours
Fried/fatty foods or meat	6+ hours

Critical caveat: For emergent procedures, balance aspiration risk against procedure necessity. Patients with recent oral intake, trauma, decreased consciousness, extreme obesity, or bowel dysfunction require careful risk-benefit assessment—use the lightest effective sedation when fasting is inadequate 1.

Routine medications (antiseizure drugs) may be taken with a sip of water on procedure day 1.

Laboratory Testing

Do not perform routine laboratory tests on healthy children 2. Order tests only when:

• Specific disease states warrant evaluation (diabetes, renal/hepatic disease, coagulopathy, patients on diuretics) 3
• History or physical examination reveals abnormalities requiring clarification
• The procedure itself necessitates baseline values

Target testing based on clinical findings rather than protocol-driven screening 2.

Special Populations Requiring Enhanced Assessment

Neonates and former preterm infants 1:

• Immature hepatic/renal function prolongs drug effects
• Require extended post-sedation monitoring
• Increased post-procedure apnea risk

Children with OSA 1:

• Altered mu receptors require one-third to one-half usual opioid doses
• Higher risk for airway obstruction and desaturation
• May benefit from anesthesiologist involvement

Patients with genetic syndromes or congenital anomalies 4:

• Evaluate for associated cardiac defects (especially VACTERL associations with esophageal atresia/anorectal malformations)
• Consider echocardiography if symptomatic or high-risk anatomy

Documentation Requirements

Before sedation, document 1:

• Complete health evaluation by licensed practitioner
• Review of systems focusing on cardiac/pulmonary/renal/hepatic function
• Fasting status verification
• ASA classification
• Contact information (home, cell phone, medical home)
• "Time out" confirming patient identity, procedure, and laterality

For hospitalized patients: Review current hospital record, document positive findings, and formulate management plan 1.

Common Pitfalls to Avoid

• Never prescribe sedating medications for home administration before arrival—deaths have occurred, particularly in infants/preschoolers in car seats 1
• Do not overlook sleep-disordered breathing symptoms—these children require dose adjustments and heightened monitoring
• Avoid protocol-driven laboratory testing—this wastes resources without improving outcomes 2
• When using immobilization devices, keep hand/foot exposed, check head position and respiratory excursions frequently, never leave unattended 1

Determining Need for Specialist Consultation

Refer to anesthesiology when 1, 5:

• High Mallampati score with difficult airway anatomy
• Severe OSA with repeated desaturation episodes
• ASA class III or higher
• Complex congenital syndromes affecting airway/cardiovascular systems
• Previous sedation complications
• Neonates with significant prematurity history or bronchopulmonary dysplasia