Your doctor will likely be able to answer this question in much more detail, but often before starting an ACE inhibitor (which ramipril is one) it's important to make sure a patient has normal/stable kidney function and potassium. A blood pressure of 160/110 isn't imminently dangerous, no reason to make hasty decisions.
Could a Physician clarify as to why Cardiology have told GP to omit Ramipril until blood tests and ECG have taken place.34 year old male BP 160/110 (Schizophrenia/Meds Olanzapine/Valproic Acid/Citalopram)GP prescribed Ramipril 1.25mg, he started to take though 6 days later a call from the surgery saying omit Ramipril until above has been done. Booked for 2 weeks time, but has left (my son) with no BP moderation. Very worried as seems so high!