Mechanical Ventilation: Inspiratory and Expiratory Maneuvers

A series of flashcards covering key terminology and concepts related to mechanical ventilation, particularly focusing on inspiratory and expiratory maneuvers.

Ventilatory Maneuvers

Specialized breathing techniques used during mechanical ventilation to improve oxygenation and enhance ventilation.

Atelectasis

The collapse or closure of a lung resulting in reduced or absent gas exchange.

Lower Inflection Point (LIP)

The pressure at which alveoli begin to open during inflation.

Upper Inflection Point (UIP)

The pressure at which further inflation does not significantly increase volume, indicating risk of overdistension.

Compliance

The ease with which the lungs expand, calculated as the change in volume per unit change in pressure (ΔV/ΔP).

Barotrauma

Lung injury caused by excessive pressure during mechanical ventilation.

Sustained Inflation

A type of inspiratory maneuver that applies continuous pressure to recruit collapsed alveoli.

Incremental PEEP

Stepwise increases in positive end-expiratory pressure to improve lung recruitment.

Sigh Breaths

Controlled deep breaths delivered intermittently to promote lung expansion.

Progressive Recruitment

A recruitment strategy involving a step-up and step-down approach to maintain alveolar recruitment.

Hypercapnia

Increased carbon dioxide levels in the blood, which can be managed by specific ventilatory strategies.

Auto-PEEP

Unintended positive end-expiratory pressure occurring due to incomplete expiration.

End-Expiratory Pause

A deliberate pause at the end of expiration to measure pressure and assess lung mechanics.

Forced Expiration Technique

A maneuver to forcefully expel air from the lungs to assess airway resistance.

Flow-Volume Loop Analysis

A graphical representation of the flow rates achieved during forced expiration and inspiration.

Hemodynamic Stability

Maintenance of stable blood circulation parameters essential for safe recruitment maneuvers.

Pre-oxygenation

Administering a high concentration of oxygen prior to a procedure to enhance oxygen reserves.

Tidal Volume (Vt)

The amount of air delivered to the lungs with each breath during mechanical ventilation.

Pulmonary Compliance (Cstat)

Static compliance of the respiratory system calculated during a pause in airflow.

Monitoring Parameters

Key indicators observed during mechanical ventilation, including peak pressures and compliance.

Patient-Ventilator Asynchrony

Lack of synchronization between the patient's breathing efforts and the ventilator's timing.

Spontaneous Breathing Trials

A method to assess a patient's readiness to be weaned off mechanical ventilation.

Dynamic Hyperinflation

Increased lung volume leading to inadequate ventilation, primarily seen in obstructive lung diseases.

Recruitment Maneuvers

Techniques used to re-expand collapsed lung regions during mechanical ventilation.

ARDS-Specific Approaches

Ventilation strategies tailored for patients with Acute Respiratory Distress Syndrome, including low tidal volume and higher PEEP.

Oxygen Saturation

The percentage of hemoglobin binding sites that are occupied by oxygen, an important parameter during mechanical ventilation.

Patient Assessment Criteria

Parameters used to evaluate patient readiness for specific ventilatory maneuvers.

Documentation Compliance

Ensuring that all necessary records related to ventilatory care are accurately maintained.

Complication Rates

Statistics quantifying the frequency of adverse events associated with mechanical ventilation.

Protocol Adherence Rates

Measurement of how closely healthcare providers follow established ventilation protocols.

Patient Comfort

The degree to which patients feel at ease during mechanical ventilation procedures.

Quality Improvement

Ongoing efforts to enhance the quality of care and patient outcomes in respiratory therapy.

Evidence-Based Outcomes

Clinical research findings that validate the effectiveness of mechanical ventilation strategies.

Cost Effectiveness

Assessment of the financial efficiency of interventions in achieving desired health outcomes.

Airway Resistance

The resistance to airflow within the respiratory tract, important for assessing ventilatory mechanics.