A 50 year old man with weight loss, fatigue, weakness...

Patient Chart
History: A 50 year old man is seen by his doctor for unintentional weight loss, fatigue, and extreme weakness. Doctor notes darkening of the skin.

Test Results: Lab results show decreased cortisol level, increased potassium and low serum sodium.
Heart Rate:
Blood Pressure: /

Heart Sounds:
Lung Sounds:

Diagnosis What is your diagnosis?