Use the following information to answer the next 4 questions:
Age: 78 years old
Gender: female
C/c: chest pain
Past medical Hx: angina, type two diabetes
Medications: n/a
1st vital signs RR: 24, HR: 110, BP: 158/88, SPO2: 90% on room air, BGL: 5.9mmol/l
Physical findings: n/a
Other information: patient was shovelling snow when she experienced substernal chest pain. Patient has taken two sprays of prescribed nitro with no relief.
Which of the following illnesses would not be included in the paramedics differential diagnosis?
a. Pneumonia
b. Cholecystitis
c. Congestive heart failure
d. Gastroesophageal reflux disease