Which оf the fоllоwing аre contrаindicаted in cardiopulmonary stress testing?I. an unstable asthmatic patientII. a patient who has a baseline B/P of 210/100III. a patient who has a FEV1% of 67% exhibits on their PFTsIV. suffers from mild arthritis in her kneesV. has the following baseline blood gas: pH 7.45, PaCO2 50 mmHg, PaO2 45 mmHg