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Pre-CRT VI
Respiratory Support
| Question | Answer |
|---|---|
| What is IPPB used for? | For preventing or correcting Atelectalis in patients unable to take a deep breath |
| What are two main Contradictions of IPPB | Massive pulmonary hemorrhage and Untreated pneumothorax |
| What are some hazards of IPPB | Hyperventilation,Air trapping,Gastric distention, pneumothorax, Impeding venous return |
| Name 3 types of Pressure Cycled ventilators | Bird Mark 7 Bennett PR II- Respirator Bennett AP4 and AP6 |
| What classification is the Bird Mark 7 | Positive pressure Pneumatically powered Time/Patient triggered Pressure cycled Assist, Control modes Flow adjustable |
| What classification is the Bennett II | Positive Pressure Pneumatically powered time/patient triggered pressure limited flow cycled time limited flow adjustable |
| What classification is the Bennett AP-4 and AP-5 | Positive pressure Electrically powered compressor driven patient trigger (AC mode only) flow cycled pressure limited Appropriate for home setting |
| Control Changes that will change the volume | 1. Increasing the pressure 2. Decreasing the flow 3. Increase the flow will increase turbulence and decrease volume 4. Air-Mix and Sensitivity have no effect. |
| Changes in delivered volume with changing Compliance and Airway Resistance | Lung status change:Increase compliance, decrease resistance Volume Change: Increase **Best Scenario** |
| What cause Loss of pressure | Leak or insufficient flow |
| What causes excessive pressure | Obstruction or excessive flow |
| Why does the machine fail to cycle into inspiration | Adjust sensitivity tight seal around mouthpiece |
| What to check if machine fails to cycle off | mouthpiece/mask leak cuff leaking Fenestrated trach tube open loose equipment connection |
| If pressure does not rise normally what is the problem | Insufficient flow |
| Indications for NPPV | 1.To avoid intubation in patients with COPD, CHF and Pulmonary Edema. 2. Facilitate long-term ventilation at home. 3. Provide periodic support- neuromuscular disease , restrictive chest wall disease, central/obstructive sleep apnea |
| IPAP and EPAP | IPAP is always set higher. If you change EPAP, you must change IPAP. IPAP is for Ventilation. EPAP is for oxygenation. |
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