A 44-year-old male restrained driver with lap and shoulder b…

A 44-year-old male restrained driver with lap and shoulder belt is involved in a head-on accident with another car that ran a red light. Emergency medical services (EMS) have arrived on the scene and have found the patient to have respiratory distress. The emergency medical services crew immobilizes the patient with a cervical collar on a long spine board and transports the patient to the state-designated trauma center. He denies any loss of consciousness and has shortness of breathing. His vital signs show heart rate 110/min, respiratory rate 30/min, blood pressure 80/40 mmHg, and oxygen saturation 88%. He has decreased breath sounds in the left hemithorax. His trachea is deviated to the right side, and neck veins are prominent. Needle decompression is performed in the left 4th intercostal space, followed by a chest tube insertion. Which part of the following steps is most appropriate to be performed during the secondary survey?

A microbiology laboratory is observing bacterial growth in a…

A microbiology laboratory is observing bacterial growth in a nutrient-rich medium. Over a short period of time, the number of bacterial cells doubles repeatedly without the formation of a nucleus or mitotic spindle. Which statement best describes binary fission in bacteria and explains why bacteria divide in this way?

A researcher is studying natural defense mechanisms present…

A researcher is studying natural defense mechanisms present in tears, saliva, and mucus that help protect the body against bacterial infections. The researcher identifies the enzyme lysozyme as an important protective factor. Which statement best explains the function of lysozyme in preventing bacterial infection?