2.3 Preoperative Processes, Consent, and Special Populations
Key Takeaways
- Preoperative anesthesia nursing judgment starts with identity, procedure/site confirmation, consent presence, allergies, medication history, NPO status, diagnostics, and readiness of monitoring and rescue equipment.
- The nurse verifies and escalates gaps; the licensed independent practitioner performing the procedure or anesthesia service is responsible for the informed consent discussion.
- Older adults, pediatric patients, pregnant patients, patients with obesity or obstructive sleep apnea, and patients with major cardiopulmonary disease have predictable anesthesia vulnerabilities.
- Ambulatory suitability depends on the procedure, anesthetic plan, comorbidities, home support, and ability to meet discharge criteria, not on age or diagnosis alone.
The preoperative anesthesia safety frame
Ambulatory anesthesia compresses assessment, preparation, procedure, recovery, and discharge into a short timeline. CAPA questions often test whether the nurse notices a missing consent, wrong-site risk, medication issue, allergy, abnormal diagnostic result, or patient factor that should be escalated before anesthesia begins.
Pre-surgical verification priorities
| Checkpoint | What the nurse verifies | What to do with a problem |
|---|---|---|
| Identity | Two identifiers match the chart, armband, consent, and schedule | Stop and reconcile discrepancies before medications or procedure. |
| Procedure and site | Patient statement, consent, schedule, site mark, and laterality agree | Escalate mismatches immediately; do not rely on assumptions. |
| Consent | Correct consent is present, signed, dated, and consistent with procedure | Pause if absent or inconsistent; provider must address informed consent. |
| Allergies and reactions | Drug, latex, adhesive, antiseptic, food-related medication concerns | Communicate reaction type and severity; prepare alternatives. |
| Medication history | Anticoagulants, antiplatelets, diabetes drugs, GLP-1 drugs per policy, opioids, benzodiazepines, supplements | Clarify hold instructions and anesthesia implications. |
| NPO and aspiration risk | Last solids, clear liquids, bowel prep, reflux, pregnancy, diabetes, delayed gastric emptying | Notify anesthesia if not consistent with policy or risk is high. |
| Diagnostics and clearance | Required labs, ECG, consults, pregnancy testing per policy, and abnormal results | Escalate missing or concerning findings before proceeding. |
| Equipment readiness | Oxygen, suction, airway equipment, monitors, emergency drugs, reversal agents, malignant hyperthermia resources when applicable | Correct gaps before sedation or anesthesia begins. |
The nurse does not obtain informed consent by explaining risks and alternatives independently unless that is part of a defined institutional role and scope. The nurse can witness a signature, assess understanding, identify questions, provide reinforcement, and advocate for the patient by calling the provider back when the patient is unsure.
Medication preparation and administration
Medication safety in the anesthesia chapter includes preoperative and postoperative medication handling. High-yield issues include look-alike/sound-alike drugs, weight-based dosing, concentration differences, high-alert opioids and sedatives, anticoagulant timing, antibiotics, antiemetics, reversal agents, and local anesthetic totals.
Use a deliberate medication check:
- Confirm the order, indication, allergies, dose, route, timing, and patient identifiers.
- For weight-based or high-alert drugs, verify weight units and calculation according to policy.
- Label syringes and basins immediately when medications leave original packaging.
- Separate local anesthetics, antiseptics, heparinized solutions, and irrigation fluids to prevent wrong-route errors.
- Reassess response after administration, especially sedation depth, respiratory status, pain relief, blood pressure, nausea, and motor/sensory effects.
Pediatric anesthesia considerations
Children have smaller airways, higher oxygen consumption, less pulmonary reserve, and greater risk of rapid desaturation. Tonsillectomy and adenoidectomy patients may have obstructive sleep apnea, which increases risk for obstruction and opioid sensitivity.
Pediatric preparation also includes developmental communication, family presence policies, weight-based dosing, warming, emergence agitation, nausea prevention, hydration status, and discharge teaching that the caregiver can perform. A child who is sleepy after opioids, has persistent obstruction, or cannot maintain oxygenation requires continued observation and escalation.
Geriatric anesthesia considerations
Older adults often require lower sedative doses and more time to clear drugs because of changes in body composition, protein binding, renal and hepatic function, and central nervous system sensitivity. They also have less physiologic reserve, higher risk of hypotension, delirium, hypothermia, aspiration, and falls.
A geriatric patient who seems "slow to wake" needs assessment rather than dismissal. Consider medication accumulation, hypoxia, hypoglycemia, stroke symptoms, residual neuromuscular blockade, pain, urinary retention, and delirium. Discharge teaching should account for hearing, vision, cognition, baseline mobility, and caregiver availability.
Pregnancy and anesthesia
Pregnancy affects airway, aspiration risk, oxygen consumption, circulation, and positioning. The gravid uterus can reduce venous return when the patient is supine later in pregnancy, so left uterine displacement or lateral tilt may be needed. Even for non-obstetric ambulatory procedures, the team considers fetal gestational age, maternal oxygenation, hemodynamic stability, aspiration precautions, medication selection, and postoperative instructions.
The exam may describe an urgent procedure in pregnancy. The safest answer generally protects maternal oxygenation and perfusion because fetal well-being depends on maternal stability.
Obesity, obstructive sleep apnea, and cardiopulmonary disease
Patients with obesity and obstructive sleep apnea may desaturate quickly, obstruct after sedatives or opioids, and require positioning, cautious opioid use, and longer monitoring. CPAP or other home airway support should be available when ordered or used at baseline.
Patients with severe cardiopulmonary disease need individualized anesthesia planning. Severe aortic stenosis, pulmonary hypertension, unstable angina, decompensated heart failure, poorly controlled asthma, and recent respiratory infection can make routine sedation dangerous. The CAPA nurse should not decide alone that the case must be cancelled, but should recognize red flags and communicate promptly.
Ambulatory suitability and discharge support
A patient can be clinically appropriate for an ambulatory procedure if the condition is optimized, the anesthetic plan is suitable, and the recovery and home environment are safe. Conversely, a short procedure is not automatically safe when the patient has unstable comorbidities or no responsible adult after sedation.
Key home-readiness questions include transportation, adult supervision, ability to use mobility aids, access to medications, understanding of block precautions, and ability to seek help for complications. CAPA scenarios often reward the answer that combines physiologic assessment with practical discharge safety.
Place these actions in the safest order when the preoperative nurse discovers that the consent says right shoulder arthroscopy but the patient states the procedure is on the left shoulder.
Arrange the items in the correct order
An older adult received a standard adult dose of midazolam before a brief procedure and remains unusually drowsy in Phase II. Which explanation best guides nursing care?