What is a form of imaging in which high-frequency sound waves reflect from body tissue and pulses are recorded and viewed?

When a nurse is reviewing lab results and notices that the erythrocytes contain an abnormally low concentration of hemoglobin, the nurse calls these erythrocytes:

a. hyperchromic. b. hypochromic. c. macrocytic. d. microcytic.

A patient presents to an outpatient clinic with a large growth on the left side of the neck. Examination reveals primary malignant neoplasm of lymph nodes. Confirmed diagnosis of nodular lymphocyte predominant Hodgkin lymphoma, lymph nodes of head, face, and neck

A. C77.0 C. C76.0 B. C80.1 D. C77.9