I was checking off for parental and non parental meds. I was given a scenario where my patients blood pressure was 88/53. Respiration are 16. Patient is prescribed Rubitussin, Cardizem, Lasix, Prinivil, Lanoxin, and Demerol, Zofran, Robitussin. My drug guide states that Cardizem should be held when has systolic BP Can you help me??? Also, what would be a red flag for Prinivil and Lasix in terms of blood pressure? When should it be held?