出左body check report, 但有d 睇唔明, 有無人識解

我媽媽做左body check
WBC白細胞總數 3.8 低於正常4.0, 但嗜中性細胞65%, 淋巴細胞28%, 單核細胞6%, 嗜酸性細胞1%, 嗜鹼性細胞0%, 那代表什麼, 嚴重嗎?
上皮細胞 講話偶見, 即係點解?

Lungs are clear and show normal pulmonary vasculature.
No hilar enlargement nor mediastinal widening detected.
the thoracic cage is intact.
the trachea is central and not displaced
both hemidiaphragms are sharp in outline and are normally situated
cardiac outline and aorta are also normal.

即係點解呀???