Asthma (TU2) by Pauline Wong https://padlet.com/paulinewong1/zj3a956tcqar44ek NUR5923 Respiratory Pathophysiology en-us 2023-03-08 00:20:27 UTC 2023-03-14 00:39:37 UTC hello@padlet.com Instructions paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709717
  • Choose a spokesperson
  • All students in the group are to work on all of the following questions/sections included in the Padlet
  • You can use diagrams/images other visual resources to explain each respiratory condition.
  • When we come back to the whole class, the spokesperson will feedback the groups findings, with the teams support
    • ]]>     2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709717     1. Brief definition paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709719 Asthma is a chronic obstructive inflammatory condition that is characterised by the inflammation and narrowing of the airways, usually in response to a trigger.  ]]> 2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709719 2. Is it obstructive or restrictive? Why? paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709722 Obstructive due to the narrowing of the airways, increasing resistance. Which makes it difficult for the air to pass through.]]> 2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709722 3. How does the condition effect lung compliance and/or airway resistance? paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709723 Increases airway resistance 
    - bronchoconstriction of smooth muscles 
    - excess mucus, thickening 

    Lung compliance 
    - chronically can lead to decreased compliance due to hyperinflation ]]>     2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709723     4. Explain the role of V/Q mismatch in this condition. paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709725
    Due to the restriction on the airway this results in reduced ventilation, unaffected perfusion and is therefore classed as a LOW VQ ratio.  




    ]]>     2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709725     5. How is oxygenation and ventilation affected? Eg. consider O2 content, O2 delivery, alveolar ventilation paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709727 Typically asthma does not present as hypoxia.
    During acute/severe attacks this will change.
    During a severe asthma attack the patient may require ventilation and oxygenation.

    1. Asthma affects airways not the alveoli. Air (oxygen) is still able to enter the airway and make its way into the alveoli and therefore cross into your blood, maintaining Oxygen levels. The issue lies with the inability to exhale properly. 

    2. Not all of the airways are affected in asthma. Lungs will vasoconstrict in order to shunt blood flow to non affected areas of the lung. This helps to ventilate the areas that are not obstructed. 

    3. Hyperventilation helps to get air in. Maintain Oxygen levels and decrease CO2.]]>     2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709727     6. What type of respiratory failure would this condition lead to? paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709728 Type 1, progresses to Type 2

    Initially is Type 1 as ventilation is inhibited

    As becomes more severe, proceeds to Type 2 as the patient becomes hypercapnic due to exhaustion. ]]>     2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709728     7. What are the typical ABGs and why? paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709730 2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709730 8. What are the typical clinical manifestations/ patient assessment data? (relate these to pathophysiology concepts already described) paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709731 Main symptoms are:
    -Wheezing; this is the sound of the air vibrations due to flow being obstructed by the smooth muscle constricted and the mucus movement in the airways. 
    - Cough; to clear the airway and force the CO2 and secretions out of the airways. 
    - Shortness of breath; is caused by a feeling of can't get enough air flow, due to poor ventilation to the alveoli and from in the bronchiole.

    Clinically:
    - increased RR 
    - tachycardia 
    - normal to low SpO2
    - cyanosis
    - pale and diaphoretic 
    - anxious 
    - tripod position 

    ]]>     2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709731     9. OPTIONAL: Important vocabulary (include list of key vocabulary referenced; if you do not know the term(s), look up and add a definition for the word(s)) paulinewong1 https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709733 Air trapping
    Bronchodilators
    Bronchospasm


    ]]>     2023-03-08 00:20:27 UTC https://padlet.com/paulinewong1/zj3a956tcqar44ek/wish/2507709733