APO (Cardiogenic) (TH2) by Pauline Wong https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v NUR5923 Respiratory Pathophysiology en-us 2023-03-08 00:27:58 UTC 2025-10-15 16:47:04 UTC hello@padlet.com Instructions paulinewong1 https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720672
  • 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 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720672     1. Brief definition paulinewong1 https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720673 Acute pulmonary oedema (APO) refers to the rapid buildup of   fluid in the alveoli and lung interstitium that has extravasated out of the pulmonary circulation. As the fluid accumulates, it impairs gas exchange and decreases lung compliance, producing dyspnoea.

    Cardiogenic APO is caused by a failure of the left ventricle to contract enough bloods to the lungs. As a result, the left ventricle is unable to pump blood efficiently and leads to build up back pressure into the left atria and the lungs. ]]>     2023-03-08 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720673     2. Is it obstructive or restrictive? Why? paulinewong1 https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720674 APO is restrictive as it reduces compliance of the lungs ]]> 2023-03-08 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720674 4. Explain the role of V/Q mismatch in this condition. paulinewong1 https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720677
    Low ventilation and high perfusion
    =low V/Q ratio
    shunt

    ]]>     2023-03-08 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720677     5. How is oxygenation and ventilation affected? Eg. consider O2 content, O2 delivery, alveolar ventilation paulinewong1 https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720679 Increase in A-a gradient, impaired diffusion of O2 across the alveolocapillary membrane. Low O2 content. Low Pao2]]> 2023-03-08 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720679 6. What type of respiratory failure would this condition lead to? paulinewong1 https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720680 Type 1, could be type 2 if they start to retain Co2]]> 2023-03-08 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720680 7. What are the typical ABGs and whyPaO2? paulinewong1 https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720681 Type 1=hypoxemia
    Normal or high pH 
    Low PaO2

    If patient gets tired (hypoventilation),
    can lead to Type 2 resp failure
    High CO2, low pH, low PaO2, high bicarb

    ]]>     2023-03-08 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720681     8. What are the typical clinical manifestations/ patient assessment data? (relate these to pathophysiology concepts already described) paulinewong1 https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720682 Pallor, oedema, SOB, increase in WOB, poor peripheral perfusion, high mucus secretion (thick), crackles, tachypnea, dyspnea, ]]> 2023-03-08 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720682 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/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720685 1. Hypoxaemia
    2. V/Q mismatch 
    3. Edema 
    4. Restrictive lung condition
    5. Low lung compliance
    6. impaired gas exchange
    7. dyspnoea
     8. Cardiac causes : 
         Acute coronary syndrome (ACS) 
         Cardiac arrhythmia e.g. atrial fibrillation (AF)
    • Valvular heart disease
    • Hypertension
    • Cardiomyopathy
    • Cardiac tamponade


    ]]>     2023-03-08 00:27:58 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2507720685     3. How does the condition affect the lung compliance or airway resistance? https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2518431452 Lung compliance is reduced due to fluid filled in alveolar, difficult for the lung to expand and recoil. ]]> 2023-03-15 22:22:46 UTC https://padlet.com/paulinewong1/9b01g4h6fbsk0d9v/wish/2518431452