Course Hero Logo

O respiratory rate number of machine breaths the

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 24 - 25 out of 31 pages.

oRespiratory Rate: number of machine breaths the patient is receiving per minuteoFiO2 (% O2 ): percentage or concentration of oxygen being inhaledoPEEP (IF USED): keeps alveoli open at end of expiration to prevent collapseoPressure Limit: amount of pressure being used to deliver each breath; preventoverexpansionModes of Ventilation - Control (CMV)Respiratory rate and tidal volume are setoPatient cannot increase their respiratory rate; patient not allowed to take theirown breathThis mode of ventilation is never used on a patient who is alert and orientedoPatient is usually deeply comatose, deep anesthesia, barbiturate overdose, brainstem injury (do not have desire to breathe), or ARDS (sedated and paralyzed)Patients on this mode of ventilation are located in ICUPressure-control ventilation controls pressure within the airways to reduce the risk ofairway trauma (i.e. following thoracic surgery)oVentilation is time triggered and time cycles, but pressure is limitedThe ventilator maintains a preset airway pressure throughout inspirationoBecause all breaths are controlled by the ventilator, heavy sedation may berequired to prevent competition between inspiratory effort and ventilator controlModes of Ventilation - Assist Control (A/C) - (Most Common in hospital and home settings)Respiratory rate and tidal volume are set, BUT client can increase respiratory rate at theset tidal volumeoi.e. Mechanical ventilation is set at 12 breaths per minute and tidal volume500ml, once every 5 seconds the machine will give a breath, but if the patienttakes an additional breath the machine will allow the patient to do so, themachine senses the breath and gives the tidal volume of 500mloIf patients RR is 20, 12 are machine breaths and 8 are assisted breaths; all 20receive a tidal volume of 500mlPatient does not have to work hard, they only have to make the slightest inspiratoryeffort and the machine acknowledges they want to breathe and gives them the 500 tidalvolume.Respiratory alkalosis is possible if patient is anxious or in pain because they canhyperventilateFrequently used to initiate mechanical ventilation and when the patient is at risk forrespiratory arrestoAssisted breaths are triggered by inspiratory effort; however, if the respiratoryrate falls below a present number (i.e. 14 breaths/minute), ventilator-controlled,are delivered at a specific tidal volume or pressure and inspiratory flow rateModes of Ventilation - Pressure Support (PSV) - (Method of Weaning)A preset positive pressure is added to client’s spontaneous breathsoPatient is able to spontaneously breathe; patient sets their own tidal volume andrespiratory ratePressure support senses that the patient wants to take a breath and gives a shot ofpositive pressure to overcome the resistance of breathing through an artificial airway

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 31 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Spring
Professor
N/A
Tags
ARDS

Newly uploaded documents

Show More

Newly uploaded documents

Show More

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture