osce

Thota Vaishnavi
Roll no 133
 
OSCE 

Question: How to prevent complications of Diabetes mellitus? 

A healthy lifestyle is the key to prevent complications.
- Follow a healthy eating plan 
- physical activity for atleast 150min a week.
- Get a regular HbA1C and aim to stay in your targets.
- Aim to keep blood pressure 140/90mm Hg
- stop smoking or don't start
- lose weight if you are obese.
- take medicines as indicated.
- make regular appointments with health care team. 



Question: Diagnosis of COPD and OSA. 
OSA 
From history - snore - silence - sleep cycle

The Epworth sleepiness scale
Normal <9
Excessive daytime somnolence >9

The STOP BANG tool. 
Snoring
Tiredness
Observed apnoeas
Pressure
Bodymass index
Age> 50
Neck size > 41cm in women, > 43cm in male
Gender - male

Low risk - yes to 0 - 2 questions
Intermediate risk - yes to 3 - 4 questions
High risk - yes to 5 - 8 questions

Inference 
In my patient, snoring, observed apnoeas, high blood pressure, BMI > 35, Age > 50 are present. 

Home sleep apnea testing
Desaturations in a cyclical manner, which will give a typical saw tooth appearance. 

Severity is defined by apnoea - hypoapnea index ( AHI ) 
AHI <5 : normal 
AHI 5-15: mild OSA 
AHI 15-30 : moderate OSA 
AHI >30 : severe OSA 

Gold standard is Polysomnography which measure body posture and movements, breathing rate and electroencephalography alongside pulse oximetry. 


COPD

Lung function tests: 
FEV1 : FVC ratio reduced.
obstructive pattern, decreased DLCO (<60% predicted)
Chest X ray - over inflation of the lungs with low flattened diaphragm, increased intercoastal space.
Lateral view- barrel shaped chest 




Question: Features of LV failure and COPD.

COPD
Symptoms
Productive cough
Wheeze
Breathlessness 

Signs
Tachypnoea
Intercoastal indrawing
Pursing of lips on expiration
Reduced chest expansion
Lungs are hyperinflated
Loss of the normal cardiac and liver dullness.
Barrel shaped chest


LV failure 
Shortness of breath
Orthopnea
S3 Gallop indicative of elevated left ventricular pressure
Cardiomegaly

Reference: Kumar and Clark's Clinical Medicine. 

What are different types of nerve fibres and their susceptibility to damage? 

Reference : Ganong's review of medical physiology. 


Learning points: 

1) Importance of lifestyle modification in preventing complications of Diabetes. 
2) Early clinical signs of diabetic neuropathy.
3) Importance of history taking and evaluating in reaching diagnosis.
4) Causes of Shortness of breath. 


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