What is the most appropriate investigation for him?

A 57-year-old man having hypertension on oral anti-HTN. However, he is finding it difficult to mobilize as he tries to get up.

What is the most appropriate investigation for him?
A . ECG
B . CXR
C . Ambulatory BP
D . CT SCAN
E . MRI

Answer: C

Explanation:

Ambulatory BP. Ambulatory BP to document low BP as cause of presenting symptom. The case sees hypotension and low BP as a result of given anti-hypertensive.