Respiratory Assessment
and Case Studies
Asthma case study
The tutorial will be conducted in two parts.
The tutor will:
• give an introduction to Asthma and revisit respiratory assessment
• review the clinical notes and records pertaining to Ben’s case study
• discuss the presenting problem and co-morbidities
• consider clinical terms and abbreviations
In groups students will:
• discuss what is going on here? and what does it mean?
• describe the physiology of the presenting symptoms
• outline the subjective and objective data presented
• explain physiological responses reflected by the vital signs and why they are occurring
https://binged.it/2pJIOBC
The University of Sydney 2
Asthma
Common chronic inflammatory and obstructive airway disease characterised by:
• Reversible
• Bronchoconstriction
• Oedema of airways
• Mucous hypersecretion
Ænarrowing of airways leading to alveoli = air trapping/ hyperinflation of lungs = impaired
gas exchange
Triggers Risks
Allergens
Drugs and chemical
Aspirin and NSAIDs
Cold air
Exercise
Stress
Irritants (smoke)
Family history
History of allergies
Age (prevalent in children)
https://www.chrichmond.org/What-is-asthma.htm
The University of Sydney 3
Pathophysiology of Asthma
Triggers
Airway inflammation
Excessive Mucus secretion
Bronchospasm/ Narrowing of airways
Airway muscle constriction Swelling of bronchial membranes
Immune activation
(IL-4, IgE production) Mast cell degranulation
Chest tightening
Wheezing
Coughing
Dyspnoea
Adapted from Brown and Edwards, 2015. p 567
The University of Sydney 4
Asthma
• What is Asthma Video
The University of Sydney 5
The University of Sydney 6
http://www.frca.co.uk/article.aspx?articleid=100023
Lung function tests
The University of Sydney 7
The University of Sydney 8
The Oxygen-haemoglobin dissociation curve
The University of Sydney 9
Normal ABG values (Brown, Edwards, Seaton & Buckley, 2015)
The University of Sydney 10
The University of Sydney 11
The University of Sydney 12
Case Study
• PATIENT NAME:
• Ben Marshall DOB: 05/03/1993 25 Years Male
• PRINCIPAL DIAGNOSIS: Severe Asthma
• SUMMARY OF EVENTS: Ben was out for a jog, where approximately
20 minutes into the run he developed severe shortness of breath and
tightness in the chest. An ambulance was called and transported him
to hospital.
• SOCIAL: Ben, a university graduate, lives with parents and two
younger siblings. He is a very fit, young adult male who plays
competition football.
The University of Sydney 13
Asthma Videos
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