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Oxygen

  • Thursday, December 15, 2016 10:20 AM
    Message # 4461581

    What are some medical applications that biologically require 99% oxygen? What is the actual percentage of oxygen that is delivered to a patient in the hospital? 

  • Thursday, December 15, 2016 12:34 PM
    Reply # 4461815 on 4461581
    Al Moon (Administrator)

    #1: HBO Hyperbaric

     

    #2: 99% of the hospital in the USA supply oxygen at 50 to 55 psig at 99+% O2:

    But most the time the Physician will order Oxygen at Liter Flow. (i.e. patient at 3 lpm): For patients on assisted ventilation the Physician will order Oxygen at a FIO2 Percent (i.e. patient at 60 FIO2).

     

    Standard of care would follow with the patient on a pulse saturation monitor and an order from the Physician for a ABG (i.e. arterial blood gas lab test)  

     

    So, with all this at hand, lets ask the big question.

    ? Does a hospital ready need 99+% oxygen ? 

     

  • Tuesday, December 20, 2016 8:04 AM
    Reply # 4468459 on 4461581

    I'm not qualified to comment on if a hospital needs 99% O2. 

     

    But from a practical standpoint, I'd think that requiring 99% concentration is the only way to overall ensure quality control.  

  • Wednesday, December 21, 2016 6:36 AM
    Reply # 4470073 on 4461581
    Al Moon (Administrator)

    USP would be our standard for that quality control. Both liquid & cylinder oxygen as well as oxygen generators fall under that standard.

    Last modified: Wednesday, December 21, 2016 3:47 PM | Al Moon (Administrator)
  • Wednesday, December 21, 2016 12:47 PM
    Reply # 4470610 on 4461581


     We all know that oxygen concentrators have been around for over 20 years in hospital use  delivering oxygen at 93% or greater. 

     Oxygen generators are just a larger oxygen concentrator capable of delivering pressures needed in a central supply system for the hospitals. 


     There are oxygen generators that have received the 510K approval to dispense USP grade oxygen 93% + or -3% oxygen. 


     The approval on some units have been to fill high-pressure cylinders for remote ambulatory patient use or to be used as a hospital back up systems as well as  for use in the Armed Forces as a primary supply. 


     It also appears that NFPA is going to adopt oxygen generators into its  next edition. 


     At present time there are several companies like Beacon Medaes that are selling them throughout the world. 


     I feel with all these changes it's a great time to start introducing oxygen generators to remote hospitals for budget purposes in 2017.


     This is just one man's opinion. 

     Merry Christmas and Happy New Year 


  • Thursday, December 29, 2016 1:34 PM
    Reply # 4481831 on 4461581

    Oxygen therapy is generally administered at the lowest concentration needed to meet the patient’s clinical needs. This can be assessed by clinical observation, pulse oximetry (finger or forehead, non-invasive) and measurement of the patient’s arterial blood gases (by arterial puncture or indwelling arterial line- invasive), which measures arterial blood 02, C02, pH, 02 saturation and sometimes other parameters. There are numerous respiratory care devices used to administer varying oxygen concentrations.  As with other drugs, too high (or too long) 02 concentrations can have possible adverse effects, such as oxygen toxicity and respiratory arrest in some patients.


    It is uncommon to administer very high inspired 02 levels, however there are several clinical lifesaving indications for administering 100% or near 100% 02. Some clinical indications for 100% oxygen therapy at or near ambient pressure are cardiac arrest and sudden respiratory arrest (CPR), CO poisoning, smoke inhalation, poor local or systemic prefusion (low blood flow), low arterial O2 levels not corrected with lower O2 concentrations. 100% O2 can be administered to spontaneously breathing patients at ambient pressure or to those requiring assisted (patient is breathing) or controlled (patient not breathing) mechanical ventilation at intermittent positive pressure.


    As mentioned in an earlier post, 100% O2 at elevated pressure is used with HBO (hyperbaric oxygen). Some clinical indications for HBO are carbon monoxide poisoning, wound and burn care when high ambient oxygen therapies are not effective or are unable to reach the affected tissue.


    There are 2 medical oxygen standards - USP Oxygen (≥99.0%) and USP Oxygen 93 Percent (90 to 96%) which “...is oxygen produced from air by the molecular sieve process.”


    A happy, healthy and successful New Year to all.


    George Scott


    Last modified: Friday, December 30, 2016 6:43 AM | George Scott
  • Friday, December 30, 2016 11:28 AM
    Reply # 4483762 on 4461581

     Nice to see you back on the forum George I miss your posts. Happy New Year and I'm sorry I missed the Croatian trip with you.

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