Mark Tozer, PhD: Medication Administration

Showing posts with label Medication Administration. Show all posts

Monday, August 05, 2024

EMS Airway Management - The 9 P’s of Rapid Sequence Intubation (RSI)

The 9 P’s of Rapid Sequence Intubation (RSI) is a systematic approach that EMS providers use to ensure the safe and effective management of airway control in critically ill or injured patients.

Here's what EMS providers need to know about each step:

1. Plan

Strategic Planning:
- Assess the need for intubation based on the patient's condition, such as respiratory failure, decreased level of consciousness, or impending airway compromise.
- Consider alternative airway management strategies in case RSI fails (e.g., supraglottic airway, surgical airway).
Backup Plan:
- Establish a clear plan for what to do if initial attempts at intubation fail, including calling for additional help or preparing for an alternative airway.

2. Preparation

Drugs:
- Prepare and draw up all necessary medications for induction (e.g., etomidate, ketamine) and paralysis (e.g., succinylcholine, rocuronium).
- Check drug dosages based on the patient’s weight and condition, and label syringes clearly.
Equipment:
- Ensure all airway equipment is ready, including laryngoscope blades, endotracheal tubes (ETTs) of various sizes, stylets, and backup devices like the iGel.
- Check the functionality of suction devices, bag-valve masks (BVMs), and capnography monitors.
People:
- Assign roles to team members, ensuring clear communication about who will administer medications, who will perform the intubation, and who will monitor the patient.
- Designate someone to manage the patient’s cervical spine if trauma is suspected.
Place:
- Prepare the environment by ensuring adequate space, lighting, and a stable surface for the procedure.
- Ensure that all necessary equipment and personnel are within reach.

3. Protect the Cervical Spine

Cervical Spine Precautions:
- If trauma is suspected, manually stabilize the cervical spine to prevent movement and further injury.
- Consider in-line stabilization while maintaining the cervical collar and minimizing neck movement during intubation.

4. Positioning

Optimal Positioning:
- Position the patient in the “sniffing” position, with the head slightly elevated and the neck extended, to align the oral, pharyngeal, and laryngeal axes for better visualization during intubation.
- In patients with suspected cervical spine injuries, maintain manual in-line stabilization without compromising the airway.
Consider Post-Paralysis:
- In some cases, optimal positioning is achieved after paralysis and induction to ensure proper relaxation of the muscles.

5. Preoxygenation

Maximize Oxygen Reserves:
- Preoxygenate the patient using a non-rebreather mask or BVM with 100% oxygen for 3-5 minutes to increase oxygen reserves and reduce the risk of hypoxia during the apneic period.
- In spontaneously breathing patients, consider passive oxygenation via nasal cannula in addition to preoxygenation.
Avoid Hyperventilation:
- Ensure proper ventilation rate and tidal volume, avoiding hyperventilation which can cause hypoventilation.

6. Pretreatment (Optional)

Medications for Specific Situations:
- Atropine: May be used in pediatric patients to prevent bradycardia during intubation, especially in those under the age of 1.
- Fentanyl: May be used in patients with increased intracranial pressure or cardiac conditions to blunt the sympathetic response.
- Lidocaine: May be administered to reduce the risk of increased intracranial pressure during intubation, though its use is less common.
Timing:
- Administer pretreatment drugs 3 minutes before induction to allow them to take effect.

7. Paralysis and Induction

Induction:
- Administer the induction agent (e.g., etomidate, ketamine) rapidly to induce unconsciousness, followed immediately by the paralytic agent.
Paralysis:
- Administer the neuromuscular blocking agent (e.g., succinylcholine or rocuronium) to achieve complete paralysis, facilitating intubation.
Sequence:
- The sequence is critical: induction agent first to prevent patient awareness, followed by the paralytic to facilitate intubation.

8. Placement with Proof

Intubation:
- Insert the endotracheal tube (ETT) with the help of a laryngoscope, ensuring the tube passes through the vocal cords and into the trachea.
Confirmation:
- Confirm ETT placement by visualizing the tube passing through the vocal cords, auscultating for bilateral breath sounds, and using capnography to verify end-tidal CO2.
- Look for chest rise, misting in the tube, and the absence of epigastric sounds to confirm proper placement.
Secure the Tube:
- Secure the ETT with a tube holder or tape to prevent dislodgement during transport.

9. Post-Intubation Management

Ongoing Sedation and Analgesia:
- Continue sedation and analgesia to keep the patient comfortable and prevent awareness during mechanical ventilation.
- Administer medications such as midazolam or propofol for sedation, and opioids like fentanyl for pain control.
Ventilation and Monitoring:
- Ensure proper ventilation settings on the mechanical ventilator or BVM, and continuously monitor oxygenation, ventilation, and hemodynamics.
- Regularly reassess ETT placement and patency, ensuring that the tube remains secured.
Management of Complications:
- Be prepared to manage any complications, such as hypotension due to sedatives, or difficulties with ventilation.

Conclusion

The 9 P’s of Rapid Sequence Intubation provide a comprehensive framework for EMS providers to manage critical airways effectively and safely. Understanding each step, from planning and preparation to post-intubation management, ensures that providers are prepared to handle the challenges of RSI in the field.

Continuous training, adherence to protocols, and effective teamwork are key to successful outcomes in airway management.

Friday, July 26, 2024

EMS Medication Administration - RSI Endotracheal Intubation

EMS Providers should have a comprehensive understanding of rapid sequence endotracheal intubation (RSI) medication administration to ensure successful and safe management of patients requiring advanced airway interventions.

Here are some points they should know:

1. Indications and Goals

Indications:

To facilitate endotracheal intubation (ETI) in patients who require definitive airway management.
Medications administered during intubation typically include induction agents (sedatives) and neuromuscular blocking agents (paralytics) and analgesics (pain relievers).

Goals:

Achieve rapid sedation and paralysis to facilitate smooth intubation without causing harm or distress to the patient.
Ensure patient comfort and safety throughout the procedure.

2. Medications Used

Analgesic Agents:

Fentanyl: EMS Providers should consider opioid administration to intubated patients, as NMBAs and sedatives do not relieve the pain associated with intubation and positive pressure ventilation (Fatolitis, 2022).

Induction Agents:

Etomidate: Rapid onset sedative with minimal cardiovascular effects.
Propofol: Potent sedative with rapid onset and short duration of action.
Ketamine: Dissociative agent providing sedation, analgesia, and amnesia.
Midazolam: Benzodiazepine used for sedation, less commonly for induction due to slower onset.

Neuromuscular Blocking Agents (NMBAs):

Succinylcholine: Depolarizing agent for rapid paralysis.
Rocuronium / Vecuronium: Non-depolarizing agent with longer duration of action and less side effects compared to succinylcholine.

3. Preparation and Technique

Medication Preparation:

Verify the “Six Rights” of medication administration: right patient, right medication, right dose, right route, right time and right documentation.
Calculate and prepare appropriate doses based on patient weight and condition.

Procedure Preparation:

Ensure all equipment for intubation is ready and functional (e.g., laryngoscope, endotracheal tube, suction).
Confirm patient positioning, secure environment, and adequate personnel for assistance.

4. Administration Techniques

Induction Agent Administration:

Administer induction agents rapidly to achieve sedation and facilitate intubation.
Ensure titration of medications to achieve desired sedation level without compromising hemodynamics.

Neuromuscular Blocking Agent Administration:

Administer NMBAs after confirming adequate sedation to prevent patient awareness and facilitate intubation.
Monitor for onset of paralysis and ensure proper ventilation during apnea phase.

5. Monitoring and Management

Monitoring:

Continuously monitor vital signs including heart rate, blood pressure, oxygen saturation, and ECG if possible.
Monitor level of sedation and depth of paralysis to adjust as necessary.

Management:

Be prepared to manage potential complications such as hypotension, respiratory depression, or adverse reactions to medications.
Have reversal agents available if needed (e.g., naloxone for opioid-induced respiratory depression).

6. Post-Intubation Care

Securing the Airway:

Confirm proper placement of the endotracheal tube (ETT) using clinical and adjunctive methods (e.g., end-tidal CO2 monitoring).
Secure the ETT and confirm effective ventilation.

Continued Monitoring:

Maintain continuous monitoring of vital signs and oxygenation.
Prepare for transport to appropriate medical facility, ensuring ongoing airway management and support.

7. Special Considerations

Pediatric and Geriatric Patients:

Adjust medication doses and techniques based on age, weight, and physiological differences.

Difficult Airway Management:

Be prepared for difficult intubations and have backup plans in place (e.g., alternative airway devices, surgical airway equipment).

Patient Condition:

Consider comorbidities and potential contraindications to specific medications based on patient history.

8. Training and Proficiency

Simulation Training:

Regular practice in simulated scenarios to maintain proficiency in intubation medication administration and airway management techniques.

Continuing Education:

Stay updated on current guidelines, best practices, and new medications relevant to intubation and airway management.

9. Legal and Ethical Considerations

Scope of Practice:

Adhere to the legal scope of practice for their certification level and local regulations.

Informed Consent:

Obtain informed consent from the patient or guardian whenever possible, considering the urgency and necessity of the procedure.

Documentation:

Accurate documentation of medication administration, intubation process, airway assessment, and ongoing patient monitoring.

Conclusion

Medication administration for RSI is a critical skill for EMS Providers performing advanced airway management. It requires proficiency in medication administration, airway assessment, and management of potential complications.

Continuous training, adherence to protocols, and effective teamwork are essential for ensuring successful patient outcomes in emergency situations.

Further Reading:

Alexander, M. & Belle, R. (2017) Advanced EMT: A Clinical Reasoning Approach (2nd Ed). Hoboken, New Jersey: Pearson Education

Bledsoe, B. E., Cherry, R. A. & Porter, R. S (2023) Paramedic Care: Principles and Practice (6th Ed) Boston, Massachusetts: Pearson

Bledsoe, B. E. & Clayden, D. (2018) Prehospital Emergency Pharmacology (8th Ed). Boston, Massachusetts: Pearson.

Brown, C. A. (2022) Walls Manual of Emergency Airway Management (5th Ed). Philadelphia, Pennsylvania: Lippincott, Williams & Wilkins

Fatolitis, N. (2022) Keys To Success For Airway Management. EMS Airway. https://emsairway.com/.../keys-to-success-for-airway.../... Accessed July 26, 2024

Guy, J. S. (2019) Pharmacology for the Prehospital Professional (2nd Ed) Burlington, Massachusetts: Jones & Bartlett Learning.

Nickson, C. (2024) Rapid Sequence Intubation (RSI). Life In The Fast Lane. https://litfl.com/rapid-sequence-intubation-rsi/ Accessed July 26, 2024

Peate, I. & Sawyer, S (2024) Fundamentals of Applied Pathophysiology for Paramedics. Hoboken, New Jersey: Wiley Blackwell

Wednesday, July 24, 2024

EMS Medication Administration - Rectal Route

EMS Providers should have a thorough understanding of rectal medication administration to ensure safe and effective treatment.

Here are some key points they should know:

1. Indications and Contraindications

Indications:

Need for rapid absorption and onset of action when other routes are not feasible or practical.
Common medications administered rectally include anticonvulsants (e.g., diazepam for seizures), antiemetics, and certain sedatives or analgesics.
Patients who are unable to take medications orally or intravenously.

Contraindications:

Rectal bleeding, inflammation, or injury.
Recent rectal surgery.
Allergy to the medication.
Conditions where rectal administration may not be safe or effective, as determined by local protocols or medical direction.

2. Mechanism of Action

Absorption:

Medications administered rectally are absorbed through the rectal mucosa into the systemic circulation, bypassing the gastrointestinal tract and first-pass metabolism in the liver.

3. Preparation and Technique

Medication Preparation:

Verify the “Six Rights” of medication administration: right patient, right medication, right dose, right route, right time and right documentation.
Ensure the medication is appropriate for rectal administration and prepare it according to protocol (e.g., suppository form).

Patient Preparation:

Position the patient on their left side (Sims Position) or in a knee-chest position to facilitate administration and retention of the medication.
Wear gloves and ensure privacy and dignity of the patient during the procedure.

4. Administration Techniques

Insertion:

Lubricate the suppository or applicator tip with water-soluble lubricant.
Gently insert the suppository or applicator into the rectum past the internal sphincter (approximately 1-2 inches in adults, less in children).
Instruct the patient to remain in position for a specified time to ensure retention and absorption of the medication.

5. Patient Communication and Education

Explain the Procedure:

Inform the patient (if conscious) about the purpose of the medication administration, how it will help, and what to expect during and after the procedure.

Instructions:

Provide clear instructions on maintaining the position to allow the medication to be absorbed properly.

6. Monitoring and Follow-Up

Observation:

Monitor the patient for signs of medication absorption, such as reduced seizure activity or relief of nausea.

Reassessment:

Regularly reassess the patient’s condition to determine the effectiveness of the medication and any need for additional intervention.

7. Complications and Management

Retention:

Ensure the suppository or medication remains in place for adequate absorption.

Adverse Reactions:

Be prepared to manage potential adverse reactions, such as local irritation or allergic reactions.

Discomfort:

Address any discomfort or concerns the patient may have during or after the procedure.

8. Special Considerations

Pediatric and Geriatric Patients:

Adjust dosage and technique based on age and physical condition; consider using smaller suppository sizes for children.

Environmental Factors:

Ensure privacy and maintain patient dignity during the procedure.

Patient Condition:

Be aware of any conditions that might affect rectal medication administration, such as rectal prolapse or recent rectal trauma.

9. Training and Proficiency

Simulation Training:

Regular practice using simulation models to maintain proficiency in rectal medication administration techniques.

Continuing Education:

Stay updated on best practices, new medications, and techniques for rectal administration.

10. Legal and Ethical Considerations

Scope of Practice:

Adhere to the legal scope of practice for their certification level and local regulations.

Informed Consent:

Obtain informed consent from the patient or guardian whenever possible.

Documentation:

Accurate documentation of medication name, dose, route, time of administration, and any observed effects or adverse reactions.

Conclusion

Effective rectal medication administration requires EMS providers to combine theoretical knowledge with practical skills.

Continuous training, adherence to protocols, and understanding the indications, techniques, and potential complications are essential for safe and effective patient care.