the rn is assigned the following patients. which patient should be assessed first? group of answer choices 68-year-old patient on a ventilator who needs a sterile sputum specimen collected. 57-year-old patient with copd and a o2 saturation of 90% taken the previous shift. 72-year-old patient with pneumonia who needs to be started on iv antibiotics. 51-year-old patient with asthma complaining of shortness of breath after using a bronchodilator inhaler.