The 18-year-old patient presents with pallor, shortness of breath, and bleeding from the gums. Extensive testing is performed and a diagnosis of very severe aplastic anemia is made. Which additional information is most important to direct treatment? 

The patient is brought to the emergency department following a gunshot wound to the right chest. The patient is noted to have tracheal deviation to the left side with absent breath sounds on the right. Review of the chest radiograph indicates a large amount of free air in the superior chest as well as fluid in the inferior chest. Which procedure is performed first? 

The patient has undergone an extracapsular cataract extraction. Which discharge instructions does the nurse give the patient? Select all that apply.